Repair and Diagnosis
- A L L Diagnostic Trouble Codes ( DTC )
- Relays and Modules
- Relays and Modules - Accessories and Optional Equipment
- Relays and Modules - Body and Frame
- Relays and Modules - Brakes and Traction Control
- Relays and Modules - Cruise Control
- Relays and Modules - HVAC
- Relays and Modules - Instrument Panel
- Relays and Modules - Lighting and Horns
- Relays and Modules - Powertrain Management
- Relays and Modules - Restraints and Safety Systems
- Relays and Modules - Steering and Suspension
- Relays and Modules - Wiper and Washer Systems
- Sensors and Switches
- Sensors and Switches - Accessories and Optional Equipment
- Sensors and Switches - Body and Frame
- Sensors and Switches - Brakes and Traction Control
- Sensors and Switches - Cooling System
- Sensors and Switches - Cruise Control
- Sensors and Switches - Engine
- Sensors and Switches - HVAC
- Sensors and Switches - Instrument Panel
- Sensors and Switches - Lighting and Horns
- Sensors and Switches - Powertrain Management
- Sensors and Switches - Computers and Control Systems
- Air Flow Meter/Sensor
- Camshaft Position Sensor
- Clutch Switch
- Coolant Temperature Sensor/Switch (For Computer)
- Crankshaft Position Sensor
- Cylinder Identification Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Oxygen Sensor
- Pressure Feedback Exhaust Sensor
- Throttle Position Sensor
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Sensors and Switches - Emission Control Systems
- Sensors and Switches - Fuel Delivery and Air Induction
- Sensors and Switches - Ignition System
- Sensors and Switches - Computers and Control Systems
- Sensors and Switches - Restraints and Safety Systems
- Sensors and Switches - Starting and Charging
- Sensors and Switches - Steering and Suspension
- Sensors and Switches - Transmission and Drivetrain
- Sensors and Switches - Windows and Glass
- Sensors and Switches - Wiper and Washer Systems
- Maintenance
- Alignment
- Tune-up and Engine Performance Checks
- Drive Belt
- Filters
- Hoses
- Fluids
- Brake Bleeding
- Fuses and Circuit Breakers
- Service Reminder Indicators
- Wheels and Tires
- Vehicle Lifting
- Service Intervals
- Severe Service Defined
- Routine Service
- Normal Service
- 7500 MI or 12000 KM
- 15000 MI or 24000 KM
- 22500 MI or 36000 KM
- 30000 MI or 48000 KM
- 37500 MI or 60000 KM
- 45000 MI or 72000 KM
- 52500 MI or 84000 KM
- 60000 MI or 96000 KM
- 67500 MI or 108000 KM
- 75000 MI or 120000 KM
- 82500 MI or 132000 KM
- 90000 MI or 144000 KM
- 97500 MI or 156000 KM
- 105000 MI or 168000 KM
- 112500 MI or 180000 KM
- 120000 MI or 192000 KM
- Severe Service
- 3000 MI or 4800 KM
- 6000 MI or 9600 KM
- 9000 MI or 14400 KM
- 12000 MI or 19200 KM
- 15000 MI or 24000 KM
- 18000 MI or 28800 KM
- 21000 MI or 33600 KM
- 24000 MI or 38400 KM
- 27000 MI or 43200 KM
- 30000 MI or 48000 KM
- 33000 MI or 52800 KM
- 36000 MI or 57600 KM
- 39000 MI or 62400 KM
- 42000 MI or 67200 KM
- 45000 MI or 72000 KM
- 48000 MI or 76800 KM
- 51000 MI or 81600 KM
- 54000 MI or 86400 KM
- 57000 MI or 91200 KM
- 60000 MI or 96000 KM
- 63000 MI or 100800 KM
- 66000 MI or 105600 KM
- 69000 MI or 110400 KM
- 72000 MI or 115200 KM
- 75000 MI or 120000 KM
- 78000 MI or 124800 KM
- 81000 MI or 129600 KM
- 84000 MI or 134400 KM
- 87000 MI or 139200 KM
- 90000 MI or 144000 KM
- 93000 MI or 148800 KM
- 96000 MI or 153600 KM
- 99000 MI or 158400 KM
- 102000 MI or 163200 KM
- 105000 MI or 168000 KM
- 108000 MI or 172800 KM
- 111000 MI or 177600 KM
- 114000 MI or 182400 KM
- 117000 MI or 187200 KM
- 120000 MI or 192000 KM
- 150000 MI or 240000 KM
Service and Repair
Technical Service Bulletins
- Engine, Cooling and Exhaust
- Engine
- Compression Check
- Camshaft, Lifters and Push Rods
- Cylinder Block Assembly
- Cylinder Head Assembly
- Drive Belts, Mounts, Brackets and Accessories
- Engine Lubrication
- Intake Manifold
- Lamps and Indicators - Engine
- Seals and Gaskets
- Sensors and Switches - Engine
- Timing Components
- Tune-up and Engine Performance Checks
- Water Pump
- Service and Repair
Specifications- Technical Service Bulletins
- Cooling System
- Exhaust System
- Engine
- Powertrain Management
- Relays and Modules - Powertrain Management
- Sensors and Switches - Powertrain Management
- Sensors and Switches - Computers and Control Systems
- Air Flow Meter/Sensor
- Camshaft Position Sensor
- Clutch Switch
- Coolant Temperature Sensor/Switch (For Computer)
- Crankshaft Position Sensor
- Cylinder Identification Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Oxygen Sensor
- Pressure Feedback Exhaust Sensor
- Throttle Position Sensor
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Sensors and Switches - Emission Control Systems
- Sensors and Switches - Fuel Delivery and Air Induction
- Sensors and Switches - Ignition System
- Sensors and Switches - Computers and Control Systems
- Tune-up and Engine Performance Checks
- Computers and Control Systems
- A/C Signal
- Air Flow Meter/Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Camshaft Position Sensor
- Clutch Switch
- Coolant Temperature Sensor/Switch (For Computer)
- Crankshaft Position Sensor
- Cylinder Identification Sensor
- Data Link Connector
- EGR Backpressure Transducer
- Engine Control Module
- Idle Speed/Throttle Actuator - Electronic
- Main Relay (Computer/Fuel System)
- Malfunction Indicator Lamp
- Oxygen Sensor
- Pressure Feedback Exhaust Sensor
- Relays and Modules - Computers and Control Systems
- Sensors and Switches - Computers and Control Systems
- Air Flow Meter/Sensor
- Camshaft Position Sensor
- Clutch Switch
- Coolant Temperature Sensor/Switch (For Computer)
- Crankshaft Position Sensor
- Cylinder Identification Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Oxygen Sensor
- Pressure Feedback Exhaust Sensor
- Throttle Position Sensor
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Throttle Position Sensor
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
Service Precautions
Description and Operation
Testing and Inspection- Flow of Diagnosis
- Initial Inspection and Diagnostic Overview
- Diagnostic Strategies
- Testing Notes - Start Here
- Customer Information Worksheet
- Verifying Customer Complaint
- Checking the Basics
- Quick Test Description
- General Testing Description
- Continuous Monitor Diagnostic Mode (Wiggle Test) Description
- Computed Timing Check Description
- Cylinder Balance Diagnostic Test Mode (SEFI Only) Description
- Output State Diagnostic Test Mode (DTM) Description
- Key On Engine Off (KOEO) Self Test Description
- Key On Engine Running (KOER) Self Test Description
- Analyzing Data
- Initial Inspection
- Diagnostic Strategies
- Reading and Clearing Diagnostic Trouble Codes
- Reading Diagnostic Trouble Codes
- Adaptive Strategy
- Address Continuous Memory DTC
- Base Ignition Timing Check
- Continuous Monitor Diagnostic Test Mode (Wiggle Test)
- Cylinder Balance Test
- Output State Diagnostic Test Mode
- Quick Test Appendix (Detailed Testing Instructions)
- Clearing Diagnostic Trouble Codes
- Reading Diagnostic Trouble Codes
- Diagnostic Trouble Code Tests and Associated Procedures
- Symptom Related Diagnostic Procedures
- Diagnostic Routines
- 1 - Engine Won't Crank
- 2 - Hard Start/Long Crank/Erratic Start/Erratic Crank
- 3 - Runs Rough At Idle; Stall After Start/At Idle
- 4 - No Start/Normal Crank
- 5 - Slow Return to Idle
- 6 - Misses At Idle; Rolling Idle
- 6 - Rolling Idle; Runs Rough At Idle
- 7 - Fast Idle; Diesels/Runs On
- 8 - Low/Slow Idle; Stalls/Quits During Deceleration
- 9 - Bucks/Jerks
- 9 - Hesitation/Stumble During Acceleration
- 9 - Misses/Runs Rough/Stalls During Acceleration/Cruise
- 11 - Surges During Acceleration/Cruise
- 12 - Backfires
- 13 - Lack/Loss of Power
- 14 - Spark Knock During Acceleration/Cruise
- 15 - Poor Fuel Economy
- 16 - Emissions Compliance
- 17 - Manual Transmission Concern (SIL)
- 17 - Warning Indicators (MIL, DCL, SIL, 4X4 Low)
- 18 - Auto Trans Shift Concerns (Up/Downshift, Engagement)
- 20 - High Oil Consumption, Leaks
- 21 - Overheating
- 22 - Runs Cold
- 23 - Visible Exhaust Smoke
- 24 - Fuel Odor In Engine Compartment
- 25 - Engine Noise
- 26 - Vibration Concerns
- 29 - Lack of Air Conditioning (A/C Not Functioning)
- 30 - A/C Always On
- 31 - A/C Does Not Cut Off Under WOT Conditions
- 32 - No Symptoms Present EEC-IV Quick Test
- 33 - Stoplamp Always On/Off
- 34 - Exhaust Odor (Sulphur/Rotten Egg Smell)
- Symptom Charts
- Intermittent Fault Diagnosis
- Diagnostic Routines
- Pinpoint Tests
- AA - No Start Test
- AA - Test Schematic
- AA - Testing Notes
- AA1 - Attempt to Crank Engine
- AA2 - Check For VREF At Throttle Position Sensor
- AA3 - Check For Spark At Plugs
- AA4 - Check For Spark At Coil
- AA5 - Check Continuity of Ignition Ground Circuit
- AA6 - Isolating of Problem to Spout Circuit
- AA7 - Check Spout Signal
- AA8 - Check Spout and PIP Circuit For Short to Power
- AA9 - Check Spout and PIP Circuit For Short to Ground
- AA10 - Isolate Short(s) In Processor
- AA11 - Check PIP Signal
- AA12 - Check Continuity of PIP Circuit
- AA13 - Spout Signal Verification
- AA14 - Attempt to Restart Vehicle
- AA15 - Check Continuity of PIP Circuit
- AA16 - Check Continuity of PIP Circuit
- AA17 - Check PIP Circuit For Shorts to Power and Ground
- AA18 - Isolate Shorts In Processor
- AA19 - Check PIP Signal
- AA20 - Check Fuel Pressure
- AA25 - Check VPWR Circuit Voltage
- AA26 - Check VPWR Continuity
- B - Vehicle Battery
- B - Test Schematic
- B - Testing Notes
- B1 - Check Battery Voltage
- B2 - Check Power Ground Circuit Continuity
- B3 - Check for Open Between SIG RTN PWR GND Ckt At Processor
- B4 - Check Signal Return Circuit Continuity
- B5 - Check KAPWR Circuit Voltage At EEC Power Relay
- B6 - Check Ignition Circuit Voltage At EEC Power Relay
- B7 - Check Power Ground Circuit Continuity
- B8 - Check VPWR Circuit Continuity
- B9 - Check VPWR Circuit Voltage
- C - Reference Voltage
- C - Testing Notes
- C - Wiring Diagram
- C1 - Check Vehicle Battery Power Circuit
- C2 - Check VREF Voltage
- C3 - Check VREF and SIG RTN Circuits For Continuity
- C4 - Check For Excess Voltage On VREF Circuit
- C5 - Check For Shorted Throttle Position Sensor
- C6 - Check For Shorted EVP/PFE/DPFE Sensor
- C7 - Check For Shorted MAP/BARO Sensor
- C8 - Check VREF For Short to Ground
- DA - Temperature Sensor Test ACT and ECT
- DA - Sensor Data
- DA - Testing Notes
- DA - Testing Schematic
- DA1 - Code 21/116 or 24/114: Check Temperature Sensor
- DA2 - Check VREF Circuit Voltage At Throttle Position Sensor
- DA3 - Check Resistance of Temperature Sensor W/Engine Off
- DA4 - Check Resistance of Temperature Sensor W/Engine Running
- DA10 - Code 51/118 or 54/113: Induce Opposite Code
- DA11 - Check Continuity of Sensor Signal and SIG RTN Circuits
- DA20 - Code 61/117 or 64/112 Induce Opposite Code
- DA21 - Check VREF Circuit Voltage At Throttle Position Sensor
- DA22 - Check Temperature Sensor Circuit For Short to Ground
- DA90 - Continuous Memory Codes 51/118, 54/113, 61/117, 68/112
- DA91 - Check EEC-IV Vehicle Harness
- DA92 - Check Processor and Vehicle Harness Connectors
- DA100 - Continuous Memory Code 338
- DA101 - Continuous Memory Code 339
- DB - EGR Temperature Sensor
- DB - Testing Notes
- DB - Testing Schematic
- DB1 - Continuous Memory Code 327: Verify Condition
- DB2 - Induce Opposite Code
- DB3 - Check EGRT Circuit For Shorts to Ground
- DB5 - Continuous Memory Code 337: Verify Condition
- DB6 - Check EGRT Circuit For Shorts to Power
- DB7 - Induce Opposite Code
- DB8 - Check Continuity of Harness Circuits
- DB10 - Continuous Memory Code 326: Check Engine Idle
- DB11 - Verify Condition
- DB12 - Check Continuity of Harness Circuits
- DB20 - Continuous Memory Code 332: Check EGR Valve Holds Vacuum
- DB21 - Check EGR Valve Operation
- DB22 - Check For Continuous Memory Code 326
- DB90 - Check EEC-IV Vehicle Harness
- DB91 - Check Processor and Harness Connectors
- DC - Mass Air Flow (MAF) Sensor
- DC - Sensor Data
- DC - Testing Notes
- DC - Testing Schematic
- DC1 - Check VPWR Circuit Voltage
- DC2 - Check VPWR Circuit Voltage
- DC3 - Check MAF Sensor Ground
- DC10 - Check For Intermittent Sensor
- DC11 - Monitor MAF Circuit Under Simulated Road Shock
- DC12 - Check Vehicle Harness For Intermittent Opens or Shorts
- DC13 - Air Leak at MAF Sensor
- DC14 - Check Continuity of MAF and VPWR Circuits
- DC15 - Check MAF Circuit For Shorts to GND and MAF RTN Circuit
- DC16 - Check PWR GND Circuit Continuity
- DC17 - Check MAF RTN Circuit Continuity
- DC18 - Check MAF Circuit For Short to Ground
- DC19 - Check MAF Circuit Output
- DC20 - Check MAF Circuit Output
- DC21 - Rerun Self-Test W/MAF Sensor Disconnected
- DC22 - Check MAF Circuit For Short to VPWR
- DF - Manifold Absolute Pressure (MAP)/Barometric Pressure (BP)
- DG - Knock Sensor
- DH - Throttle Position (TP) Sensor
- DH - Sensor Data
- DH - Test Schematic
- DH - Testing Notes
- DH1 - Engine Running Service Code 23/121
- DH2 - Service Code 23/121: Check For Stuck Throttle Plate
- DH3 - Service Code 53/123: Attempt to Generate Code 63/122
- DH4 - Check VREF Circuit Voltage
- DH5 - Check TP Circuit For Shorts to Power
- DH10 - Service Code 63/122
- DH11 - Check VREF Circuit Voltage
- DH12 - Check TP Circuit Continuity
- DH13 - Check TP Circuit For Shorts to Ground
- DH20 - Engine Running Service Code 73/167
- DH21 - Check TP Sensor Movement During Dynamic Response Test
- DH90 - Continuous Memory Code 53/123
- DH91 - Measure TPS Voltage While Exercising Sensor
- DH92 - Check EEC Vehicle Harness
- DH93 - Check Processor and Harness Connectors
- DH94 - Continuous Memory Code 63/122
- DH95 - Check EEC Vehicle Harness
- DH96 - Check Processor and Harness Connectors
- DL - PFE/DPFE Sensor; EVR Solenoid Testing
- DL - Sensor Data
- DL - Testing Notes
- DL - Testing Schematic
- DL1 - Code 31/327: Induce Code 35/337
- DL2 - Measure VREF Circuit Voltage
- DL3 - Check PFE/DPFE Circuit Continuity
- DL4 - Check PFE/DPFE Circuit For Shorts to Ground and SIG RTN
- DL5 - Code 35/337: Induce Code 31/327
- DL6 - Measure VREF Circuit Voltage
- DL7 - Check PFE/DPFE Circuit For Short to Power
- DL8 - Service Code 34/335: Verify Engine Running Codes
- DL9 - Check PFE/DPFE Sensor Pressure Input Hose(s)
- DL10 - Measure VREF Circuit Voltage at PFE/DPFE Sensor
- DL11 - Service Code 84/558: Measure EVR Solenoid Resistance
- DL12 - Check VPWR Circuit Voltage
- DL13 - Check EVR Circuit Continuity
- DL14 - Check EVR Circuit For Short to Power or Ground
- DL20 - Remove Garage Forced Ventilation
- DL21 - Rerun Self-Test w/EGR Vacuum Line Disconnected
- DL22 - Check PFE/DPFE Sensor Pressure Input Hose For Blockage
- DL23 - Check PFE/DPFE Signal Voltage With Engine at Idle
- DL24 - Check EGR Valve For Binding
- DL25 - Engine Running Codes 34/336 & 35/337
- DL26 - Check PFE Signal Voltage
- DL27 - Check PFE and SIG RTN Harness Circuit Continuity
- DL28 - Check PFE Harness Circuit For Shorts to Power
- DL30 - Code 33/332: Verify Vacuum Present At EGR Valve
- DL31 - Check Vacuum Input to the EVR Solenoid
- DL34 - Check Signal at the PFE/DPFE Inlet Hose(s)
- DL35 - Attempt to Generate KOEO Code 337
- DL36 - Measure VREF Circuit Voltage
- DL37 - Check PFE/DPFE Harness Circuit Continuity
- DL38 - Check PFE/DPFE Harness For Shorts to Ground and SIG RTN
- DL50 - Code 336 or 337: Check For EVR Malfunction
- DL51 - Check DPFE Signal Voltage With Engine At Idle
- DL52 - Check EGR Valve For Binding
- DL90 - All Continuous Memory EGR DTC: Intermittent Verification
- DL91 - All Continuous Memory EGR DTCs: Visual Inspection
- DL92 - All Continuous Memory EGR DTCs: Code Definitions
- DL93 - Code 326, 327, 336, 337: Wiggle Test Sensor
- DL94 - Wiggle Test EEC-IV Vehicle Harness
- DL95 - Check PCM Connector
- DL96 - Check EGR Valve For Sticking
- DL97 - Check EVR Solenoid and Hoses
- DL98 - Check EVR Solenoids For Shorts
- DL99 - Check EVR Harness Circuit For Intermittents
- DL100 - Inspect PFE Supply Hose For Blockage
- DL101 - Check Vacuum at EGR Valve
- DL102 - Check For Stuck Open EGR Valve
- DL105 - Code 332: Check EGR Valve Operation
- DL106 - Inspect EVR Solenoid Hoses
- DL107 - Inspect PFE/DPFE Signal Line(s)
- DL108 - Inspect EVR Solenoid
- DP - Vehicle Speed Sensor (VSS)
- DR - Cylinder Identification (CID) Sensor
- DR - Testing Notes
- DR1 - Continuous Code 214: Will Engine Start
- DR2 - Clear and Attempt to Re-Generate Code 214
- DR3 - Check CID Circuit Continuity to PCM
- DR4 - Check CID Circuit For Short to Power
- DR5 - Check CID Circuit For Short to Ground
- DR6 - Check VPWR Circuit Voltage
- DR7 - Check For Shorts In PCM
- DR8 - Check CMP or CKP Sensor Output
- DR10 - Check For VPWR to Crank Angle Sensor
- DR20 - Check CID Wiring
- DR21 - Road Test
- DS - Programmable Speedometer/Odometer Module
- FD - Brake On/Off (BOO) Switch
- FD - Testing Notes
- FD - Testing Schematic
- FD1 - Service Code 74/536: Verify Brake Was Pressed
- FD2 - Check Operation of Stoplamps
- FD3 - Check For BOO Circuit Cycling
- FD4 - Check For Power to Brake Switch
- FD5 - Verify Brake Switch Is Not Always Closed
- FD6 - Check For Short to Power In Processor
- FD7 - Check For Short to Power In Shiftlock Actuator
- FD90 - Check For Proper Stoplamp Switch Installation
- FD91 - Check Stoplamp Ground
- FD92 - Check Stoplamp/BOO Circuits For Short to Power
- FD93 - Check Stoplamp Circuit Continuity
- FD94 - Check BOO Circuit Continuity
- FD99 - Road Test
- FE - Electrical Load Inputs
- FE - Testing Notes
- FE - Testing Schematic
- FE1 - Electrical Load Switch Test Direction
- FE10 - Check Voltage of BLR Circuit, Low Speed Position
- FE11 - Check Voltage of BLR Circuit, High Speed Position
- FE12 - Check BLR Circuit For Short to Power
- FE13 - Check BLR Circuit Continuity
- FE14 - Check BLR Circuit For Short to Ground
- FE20 - Check Voltage of DRL Circuit, Park Brake & Headlamps On
- FE21 - Check Voltage of DRL Circuit, Park Brake & Headlamps Off
- FE22 - Check DRL Circuit For Short to Power
- FE23 - Check DRL Circuit Continuity
- FE24 - Check DRL Circuit For Short to Ground
- FE30 - Check Voltage of HDL Circuit, Headlamps Off
- FE31 - Check Voltage of HDL Circuit, Headlamps On
- FE32 - Check HDL Circuit Continuity
- FE33 - Check HDL Circuit For Short to Ground
- FE34 - Check HDL Circuit For Short to Power
- FE40 - Check Voltage of DEF Circuit, Defrost Off
- FE41 - Check Voltage of DEF Circuit, Defrost On
- FE42 - Check DEF Circuit For Short to Power
- FE43 - Check DEF Circuit For Continuity
- FE44 - Check DEF Circuit For Short to Ground
- FF - Power Steering Pressure (PSP) Switch
- FF - Testing Notes
- FF - Testing Schematic
- FF1 - Service Code 52/519: Attempt to Eliminate Code 52/519
- FF2 - Check Continuity of PSPS Circuit
- FF3 - Check PSPS Operation
- FF4 - Check PSPS Circuits For Shorts
- FF5 - Verify Operator Interaction Service Code 52/521
- FF6 - Determine If the Processor Can Identify an Open Circuit
- FF7 - Check PSPS Circuits For Shorts
- FF8 - Check PSPS State With KOEO vs. KOER
- FF9 - Check PSPS State With Engine Running and Load vs. No Load
- FF10 - Service Code 519: Attempt to Eliminate Code 519
- FF11 - Check PSPS Circuit For Short
- FF15 - Check PSPS Operation
- FF16 - Check Continuity of PSPS Circuits
- FF21 - Determine If the Processor Can Identify A Closed Circuit
- FF22 - Check Continuity of PSPS Circuit
- FF23 - Check PSPS State W/Key On Engine Off Vs. Engine Running
- FF24 - Check PSPS State w/Engine Running and Load vs. No Load
- G - In-Range MAF/TPS/Fuel Injector Pulse Width Test
- G - Testing Notes
- G1 - Throttle Position Sensor Integrity
- G2 - Check Idle
- G3 - Check Throttle Body
- G4 - Check MAP/BARO Sensor Output
- G5 - Check Intake Air Temperature (IAT) Sensor
- G6 - Visually Inspect MAF Sensor
- G7 - Check MAF Sensor
- G8 - Visually Inspect For Vacuum Leaks
- G9 - Check Fuel Pressure
- G10 - Check System's Ability to Hold Fuel Pressure
- G11 - Cylinder Balance Test
- H - Fuel Control
- H - Fuel Injector Resistance Specification Table
- H - Fuel Pressure Specification Table
- H - Test Schematic
- H - Testing Notes
- H1 - Check For Contaminated Engine Oil
- H2 - Check Fuel Pressure
- H3 - Check Systems Ability to Hold Fuel Pressure
- H4 - Fuel Delivery Test
- H5 - Cylinder Balance Test: EFI Engines
- H6 - Cylinder Balance Test: SEFI Engines Only
- H7 - Check Resistance of Injector(s) and Harness EFI Engines
- H8 - Check Resistance of Injector(s) and Harness SEFI Engines
- H9 - Check Continuity of Fuel Injector Harness
- H10 - Check Injector Harness Circuit For Short to Power/Ground
- H11 - Isolate Faulty Injector Circuit
- H12 - Check Injector Driver Signal
- H13 - Check Secondary Air Injection Operation
- H14 - Check HEGO Integrity
- H15 - Check HEGO Sensor On Engines With MAP Sensor
- H16 - Check HEGO Sensor On Engines With MAF Sensor
- H17 - Check Continuity of HEGO Signal Circuit and HEGO Ground
- H18 - Check HEGO Circuit For Short to Ground
- H19 - Check HEGO Sensor For Short to Ground
- H20 - Attempt to Eliminate Code 41/172, 91/136 or 176
- H21 - Check Resistance of Heated Element On HEGO
- H22 - Check For Power At HEGO Harness Connector
- H23 - Check Continuity of Power Ground Circuit
- H24 - Check HEGO Signal For Short to Power
- H25 - Check For Short to Power
- H26 - Check HEGO Sensor For Short to Ignition Run Circuit
- H27 - Attempt to Generate Code 41/172, 91/136, 176
- H28 - Check MAP Sensor For Vacuum Leak
- H29 - Check For Loss of Vacuum to MAP Sensor
- H30 - HEGO Sensor Check
- H90 - Check Continuous Monitor Mode
- H91 - Continuous Monitor Test Drive Check
- H92 - Check HEGO Switching
- HA - Adaptive Fuel
- HA - Fuel Injector Resistance Specifications
- HA - Fuel Pressure Specifications
- HA - MAP/BP Sensor Data
- HA - Testing Notes
- HA1 - Check For Other Codes
- HA2 - Check Fuel Pressure
- HA3 - Check System's Ability to Hold Fuel Pressure
- HA4 - Check MAP/BARO Frequency
- HA5 - Diagnostic Test Mode (DTM): MFI Engines
- HA6 - Diagnostic Test Mode (DTM): SFI Engines
- HA7 - Check Resistance of Injector(s) and Harness - MFI Engines
- HA8 - Check Resistance of Injector(s) and Harness - SFI Engines
- HA9 - Check Continuity of Fuel Injector Harness
- HA10 - Check Injector Harness For Short to Power or Ground
- HA11 - Isolate Faulty Injector Circuit
- HA12 - Check Injector Driver Signal
- J - Fuel Pump Circuit
- J - Testing Notes
- J - Testing Schematic
- J1 - Code 87/556: Check For VPWR to Fuel Pump Relay
- J2 - Check Fuel Pump Relay
- J3 - Check Fuel Pump Circuit For Short to Power
- J4 - Check Fuel Pump Circuit For Short to Ground
- J5 - Check Fuel Pump Circuit Continuity
- J10 - Code 95/542: Does Engine Start
- J11 - Verify That Fuel Pump Is Off
- J12 - Check For Fuel Pump Relay Always Closed
- J13 - Check FPM Circuit Continuity
- J15 - Check Inertia Fuel Shutoff (IFS) Switch
- J20 - Code 96/543: Does Engine Start
- J21 - Check For B(+) to Fuel Pump Relay
- J22 - Check Power to Pump Circuit Continuity
- J25 - Check Left/Front Heated Oxygen Sensor or Short to Power
- J26 - Check HO2S Circuit For Short to Power
- J90 - Continuous Code 95/542: Check EEC-IV Harness
- J91 - Check FPM Circuit
- J92 - Check For Shorts to Power
- J93 - Continuous Code 96/543: Check Code 87/556
- J94 - Check EEC-IV Harness
- J95 - Continuous Code 87/556: Check EEC-IV Harness
- J96 - Check Left/Front HEGO Circuit For Short to Power
- J99 - Road Test
- KA - EGR Vacuum Regulator Solenoid
- KA - Testing Notes
- KA - Testing Schematic
- KA1 - KOEO Service Code 558: Enter Output State Check
- KA2 - Check EVR Solenoid Electrical Operation
- KA3 - Check EVR Solenoid Valve Operation
- KA4 - Check Vacuum Hose From the EVR Solenoid to Throttle Body
- KA5 - Check Vacuum Hose From EVR to Back Pressure Transducer
- KA6 - Check EVR Solenoid VPWR
- KA7 - Check Continuity of EVR Solenoid Signal Harness Circuit
- KA8 - Check EVR Solenoid Signal Harness Circuit For Short
- KB - Canister Purge (CANP) Valve
- KB - Test Schematic
- KB - Testing Notes
- KB1 - Code 565: Enter Output State Diagnostic Test Mode (DTM)
- KB2 - Check CANP Valve Electrical Operation
- KB3 - Check CANP Valve Resistance
- KB4 - Check CANP Valve For Vacuum Leaks
- KB5 - Check CANP Valve Electro-Mechanical Operation
- KB6 - Check For Vacuum to CANP Valve Input Port
- KB7 - Check VPWR Circuit Voltage
- KB8 - Check Continuity of CANP Circuit
- KB9 - Check CANP Circuit For Short to Power
- KB10 - Check CANP Circuit For Short to Ground
- KD - Canister Purge (CANP) Solenoid
- KD - Testing Notes
- KD - Testing Schematic
- KD1 - Enter Output State Diagnostic Test Mode
- KD2 - Check Canister Purge Solenoid Electrical Operation
- KD3 - Check Canister Purge Solenoid For Vacuum Leaks
- KD4 - Check Canister Purge Solenoid For Mechanical Operation
- KD5 - Check For Vacuum to Canister Purge Solenoid
- KD6 - Service Code 85/565, 569: Check CANP Solenoid Resistance
- KD7 - Check VPWR Circuit Voltage
- KD8 - Check Continuity of CANP Circuit
- KD9 - Check CANP Circuit For Short to Ground
- KD10 - Check CANP Circuit For Short to Power
- KE - Idle Speed Control
- KE - Test Notes
- KE - Test Schematic
- KE1 - Service Code 12/412, 16: Check For RPM Drop
- KE2 - Check For EGR Codes
- KE3 - Check For Other EEC Codes
- KE4 - Measure ISC Solenoid Resistance
- KE5 - Check For Internal Short to ISC Solenoid Case
- KE6 - Check VPWR Circuit Voltage
- KE7 - Check ISC Circuit Continuity
- KE8 - Check ISC Circuit For Short to Ground
- KE9 - Check ISC Circuit For Short to Power
- KE10 - Check For ISC Signal From the Processor
- KE11 - Check Idle
- KE12 - Check For Problems Affecting Proper Engine Speed
- KE15 - Code 13/411
- KE16 - Check For Conditions Affecting Idle
- KE17 - Check For Internal Short to ISC Solenoid Case
- KE18 - Check ISC Circuit For Short to Ground
- KE19 - Check Processor Output
- KE20 - Check For Proper Engine Coolant Flow to ISC-BPA Valve
- KE25 - Lack High Idle W/Cold: Verify ISC-BPA Not Stuck Closed
- KE30 - Code 415: Check For Air Leaks
- KE31 - Check For Vacuum Leaks at Idle
- KE32 - Inspect Throttle Body and Linkage
- KE33 - Check Idle Speed
- KE35 - Code 416: Check For A Plugged Air Filter
- KE36 - Check IAC Solenoid and Throttle Body For Damage
- KE37 - Check Idle Speed
- KL - Shift Indicator Light (SIL)
- KL - Testing Notes
- KL1 - Check SIL Light
- KL2 - Check SIL Circuit Fuse
- KL3 - Check SIL Bulb
- KL4 - Check SIL Dimmer Relay Continuity
- KL5 - Check SIL Dimmer Relay Function
- KL6 - Check Voltage At SIL Dimmer Relay
- KL7 - Check Continuity of SIL Circuit
- KL8 - Check SIL Circuit For Short to Ground
- KL9 - Check SIL Dimmer Relay For Internal Short to Ground
- KL10 - Check SIL Circuit For Short to Ground
- KL11 - Check SIL Circuit For Short to Ground
- KL15 - Check For Voltage to SIL Socket
- KL16 - Check Operation of Top Gear Switch
- KL17 - Check Continuity of SIL Circuit
- KL18 - Operation of the Thunderbird SC SIL
- KL19 - Check SIL Circuit Fuse
- KL20 - Check SIL Bulb
- KL21 - Check For Voltage to SIL Socket
- KL22 - Check Continuity of SIL Circuit
- KL23 - Check SIL Circuit For Short to Ground
- KM - WOT A/C Cut-Off (WAC) A/C Demand
- KM - Test Schematic
- KM - Testing Notes
- KM1 - No A/C: Check For Voltage to A/C Clutch
- KM2 - Check Power-to-Clutch Circuit Continuity
- KM3 - Check For Power On A/C Demand Circuit
- KM4 - Check Continuity Between WAC Relay and A/C Relay
- KM5 - Check WAC Circuit For Short to Ground
- KM6 - Check For Voltage at ACCS/ACD Input to PCM
- KM7 - Check WAC Relay
- KM15 - No A/C Cutout At WOT: Enter Output State Check
- KM16 - Check For VPWR to Relay
- KM17 - Check For WAC Cycling
- KM18 - Check WAC Circuit Continuity
- KM19 - Check WAC Circuit For Short to Power
- KM30 - Check A/C Input Circuitry
- KM31 - Check A/C Input Circuit
- KM32 - Cycle A/C Demand Switch
- KM40 - Code 67, 79/539: Check A/C Input
- KM41 - Check For Short to Power In Processor
- KM50 - No A/C - Attempt to Generate Code 539
- KM51 - Check For B+ Voltage to A/C Relay
- KM52 - Check Power to Clutch Circuit Continuity
- KM53 - Check A/C Relay
- KM55 - Check ACD Circuit Continuity to Low Pressure Switch
- KM56 - Measure Resistance of LP Switch
- KM57 - Check ACD Circuit Continuity From LP Switch to PCM
- KM60 - Code 559: Check For IGN Run Voltage to A/C Relay
- KM61 - Check A/C Relay
- KM62 - Check ACON Circuit For Short to Power
- KM63 - Check ACON Circuit For Short to Ground
- KM64 - Check ACON Circuit Continuity
- KM70 - Service Code 539: Check A/C Input
- KM71 - Check Low Pressure Switch
- KM72 - Check ACD Circuit to Processor For Short to Ground
- KM80 - A/C Always On: Check Clutch Circuit For Short to Power
- KM81 - Check A/C Relay
- KN - Fuel Pressure Regulator Control Solenoid
- KN - Testing Notes
- KN - Testing Schematic
- KN1 - KOEO Service Code 554: Enter Output State Check
- KN2 - Fuel Pressure Regulator Solenoid Electrical Operation
- KN3 - Check Vacuum Between Fuel Regulator and FPRC Solenoid
- KN4 - Check Vacuum Signal Between FPRC Solenoid and Manifold
- KN5 - Check FPRC Solenoid
- KN6 - Check FPRC Circuit Continuity
- KN7 - Check FPRC Circuit For Short to Power and Ground
- KP - Octane Adjust
- KP - Testing Notes
- KP1 - Inspect Octane Adjust Inline Connector Code 57/341
- KP2 - Check For Modification Decal
- KP3 - Check For Service Code 57/341
- KP4 - Check Continuity of Octane Adjust Circuit
- KP5 - Check For Service Code 11
- KP6 - Verify In-Line Connector Shorting Bar Is Installed
- KP7 - Check For Modification Decal
- KP8 - Check For TSB
- KP9 - Remove Octane Shorting Bar
- KP10 - Check Octane Adjust Circuit For A Short to Ground
- KP11 - Check Processor Integrity
- M - Dynamic Response Test
- ML - Self-Test Output/Malfunction Indicator Lamp
- ML - Testing Notes
- ML - Testing Schematic
- ML1 - Malfunction Indicator Light Always On
- ML4 - Malfunction Indicator Light Never On
- ML5 - Check For VBAT At MIL Fuse
- ML6 - Check For B+ at MIL Bulb/Socket
- ML7 - Check MIL Bulb Response to Grounding
- ML8 - Check MIL Circuit Continuity
- ML10 - Malfunction Indicator Light Intermittent On
- ML15 - Malfunction Indicator Light Flashing with Erratic Idle
- ML20 - "Check Engine" Message Displayed
- ML25 - Continuous Code 529, "Check Engine"/"Check DCL"
- NA - TFI Ignition Diagnostic Monitor
- NA - Testing Notes
- NA - Testing Schematic
- NA1 - Continuous Codes 14/211: Erratic Ignition
- NA2 - Continuous Codes 18/212: Check IDM Circuit Continuity
- NA3 - Continuous Codes 18/212: Check IDM Circuit Continuity
- NA4 - Code 18/212: Check IDM Circuit Continuity
- NA5 - Check IDM Circuit For Shorts to Power (Excluding VREF)
- NA6 - Check IDM Circuit For Short to VREF and PIP
- NA7 - Check IDM Circuit For Short to Ground
- NA8 - Check ICM
- NA9 - Check EEC Harness
- NA10 - Check PCM and Harness Connectors
- NA11 - Check PCM For Short to Power
- NA12 - Check PCM For Short to Ground
- PA - Spark Timing Check - TFI
- QA - No Codes/Codes Not Listed
- QA - Test Schematic
- QA - Testing Notes
- QA1 - Check VREF Voltage At Self-Test Connector
- QA2 - Check SIG RTN Circuit Continuity
- QA3 - Check STI Circuit Continuity
- QA4 - Check STO Circuit Continuity
- QA5 - Check HO2S Signal For Short to Power
- QA6 - Isolate Short to Harness or HO2S
- QA7 - Check STO Circuit For Short to Ground
- QA8 - Check If Power Relay Is Always On
- QA9 - Check VPWR Circuit For Short to Power
- QA10 - Check MIL Function
- QB - Continuous Memory Service Code 15/512
- QC - Output State Check Not Functioning
- S - System Check
- TA - Neutral Drive Input
- TB - 4X4 Low/Overdrive Cancel Switch
- TB - Testing Notes
- TB - Testing Schematic
- TB1 - Diagnostic Trouble Code (DTC) 47/633
- TB2 - Diagnostic Trouble Code (DTC) 65/632
- TB3 - Diagnostic Trouble Code (DTC) 97/631
- TB4 - Cycle the Appropriate Circuit: (4X4 Low or Transmission)
- TB5 - Check Harness Circuit(s) For Short to Ground
- TB6 - Check Key Power Through TCIL Circuit
- TB7 - Check Output Driver Signal
- TB8 - Check Continuity of Control Switch Harness
- TB9 - Check Harness Circuit(s) For Shorts to Power
- TC - Transmission Solenoids
- TC - Testing Notes
- TC1 - Enter Output State Diagnostic Test Mode
- TC2 - Check Solenoid Electrical Operation
- TC3 - Check Continuity of Solenoid Signal and VPWR Harness
- TC4 - Check Solenoid Harness For Shorts to Power or Ground
- TC10 - Check VPWR to Solenoid
- TC11 - Check Continuity of Solenoid Signal and VPWR Harness
- TC12 - Check Harness For Short to Power or Ground
- TC20 - Key On Engine Off Service Code 621/622/641/643
- TC21 - Check Shift Solenoid Circuit For Short to Power
- TC22 - Check Shift Solenoid Circuit For Short to Ground
- TC23 - Check Shift Solenoid Circuit Continuity
- TC24 - Check Shift Solenoid For Short to Power In Transmission
- TC25 - Inspect Transmission Wiring
- TC30 - Continuous Codes 621/622/641/643
- TC31 - Check Harness and Connectors For Opens or Shorts
- TC32 - Check Harness For Intermittent Shorts to Ground
- TD - Manual Lever Position (MLP) Sensor
- TD - Manual Lever Position Sensor Resistance Spec. Table
- TD - Testing Notes
- TD1 - Key On Engine Off Service Code 67/634, 522 and 654
- TD2 - Check Continuity of MLP Sensor Harness Circuits
- TD3 - Check MLP Sensor Circuit For Short to Power and Ground
- TD4 - Check MLP Sensor Resistance
- TD9 - Transmission In 3RD Gear Only When In "D" and "OD"
- TD10 - Service Code 634: Check Symptom
- TD11 - Check For IGN Start/Run Circuit Voltage At Transmission
- TD12 - Check Function of the Transmission Select Switches
- TD13 - Check Transmission Switch Input Voltages At Breakout Box
- TD14 - Check Adjustment/External Wiring of the Manual Lever
- TD20 - Visually Check Harness Between EEC-IV and Transmission
- TD21 - Check Harness and Connectors For Intermittent Problems
- TD22 - Road Test
- TE - Transmission Oil Temperature Sensor
- TE - Sensor Data
- TE - Testing Notes
- TE1 - KOEO and KOER Service Code 26 or 636
- TE2 - Check For VREF At Throttle Position Sensor
- TE3 - Check TOT Sensor Resistance Change As Oil Temp Varies
- TE10 - KOEO Service Code 56 or 637
- TE11 - Check Continuity of TOT and SIG RTN Circuits
- TE12 - Check TOT Circuit For Short to VPWR
- TE20 - KOEO Service Code 66 or 638
- TE21 - Check VREF At the Throttle Position Sensor
- TE22 - Check TOT Circuit For Short to Ground
- TE25 - Check Transmission Wiring
- TE90 - Continuous Code 637/638
- TE100 - Continuous Code 68/657: Rerun KOEO Self Test
- TF - Transmission Speed Sensor
- TF - Testing Notes
- TF1 - Engine Running Code 639
- TF2 - Check TSS/OSS Harness Circuit For Short to Power/Ground
- TF3 - Check TSS or OSS Resistance
- TF10 - Engine Running Service Code 639
- TF11 - Check TSS Circuits For Short to Power
- TF12 - Check TSS Circuit For Short to Ground or Each Other
- TF13 - Check TSS Circuit Continuity
- TF14 - Check Processor For Internal Shorts
- TF15 - Check TSS Output
- TF90 - Continuous Code 639
- TF91 - Check TSS or OSS Circuit Continuity
- TF92 - Check TSS or OSS Circuit For Short to Power or Ground
- TF93 - Check TSS or OSS Resistance
- TF95 - Continuous Code 639: Check TSS Wiring
- TF96 - Check Processor and Harness Connectors
- TF97 - Road Test
- TG - Electronic Transmission - Continuous Memory Service Codes
- AA - No Start Test
- Component Tests and General Diagnostics
- Scan Tool Testing and Procedures
- Normal Scan Data Values (Includes PIDs)
- Sensor Graphs and Charts
- Air Charge Temperature (ACT) Sensor
- Barometric and Manifold Absolute Pressure (BP/MAP) Sensors
- EGR Valve Position (EVP) Sensor
- Engine Coolant Temperature (ECT) Sensor
- Fuel Pressure
- Manual Lever Position Sensor (MLPS)
- Mass Air Flow (MAF) Sensor
- Pressure Feedback EGR (PFE) Sensor
- Throttle Position (TP) Sensor
- Transmission Oil Temperature Sensor
Locations- Service and Repair
Diagrams- Specifications
- Technical Service Bulletins
Tools and Equipment- Analog Voltmeter
- Automatic Readout Tester
- Breakout Box
- Digital Volt-Ohmmeter
- EEC-IV Monitor Box
- EEC-IV Monitor Recorder
- EFI Pressure Gauge
- Integrated Controller Module Tester
- Jumper Wire
- Self Test Automatic Readout (Star) Tester
- Spark Tester
- Star Tester II
- Tachometer
- Test-Lights
- Timing Light
- Vacuum Gauge/Economy Meter
- Vacuum Pump
- Emission Control Systems
- Air Injection
- Catalytic Converter
- Evaporative Emissions System
- Exhaust Gas Recirculation
- Fillpipe Restrictor
- Positive Crankcase Ventilation
- Sensors and Switches - Emission Control Systems
- Thermostatic Air Cleaner
- Vacuum Restrictor
- Service Precautions
- Application and ID
- Description and Operation
- Testing and Inspection
- Flow of Diagnosis
- Symptom Related Diagnostic Procedures
- Component Tests and General Diagnostics
- Locations
- Diagrams
- Technical Service Bulletins
- Tools and Equipment
- Analog Voltmeter
- Automatic Readout Tester
- Breakout Box
- Digital Volt-Ohmmeter
- EEC-IV Monitor Box
- EEC-IV Monitor Recorder
- EFI Pressure Gauge
- Integrated Controller Module Tester
- Jumper Wire
- Self Test Automatic Readout (Star) Tester
- Spark Tester
- Star Tester II
- Tachometer
- Test-Lights
- Timing Light
- Vacuum Gauge/Economy Meter
- Vacuum Pump
- Fuel Delivery and Air Induction
- Fuel Pressure
- Fuel Pressure Release
- Idle Speed
- Air/Fuel Mixture
- Accelerator Pedal
- Air Cleaner Housing
- Air Flow Meter/Sensor
- Diagnostic Connector - Fuel Pump
- Fillpipe Restrictor
- Fuel
- Fuel Filler Cap
- Fuel Filter
- Fuel Injector
- Fuel Line Coupler
- Fuel Pressure Check Valve
- Fuel Pressure Regulator
- Fuel Pump
- Fuel Pressure
- Fuel Pump Relay
- Service Precautions
- Testing and Inspection
- A1 - Initial System Inspection
- A2 - Static Fuel Pressure Check
- A3 - Static Leak-down Test
- A4 - Vehicle Load Test
- A5 - Fuel Pressure Regulator Check
- A6 - Check Fuel Pump
- A7 - Inertia Switch and Ground Check
- A8 - Voltage Check
- A9 - Pressure Regulator Check
- A10 - Pressure Regulator Leak Test
- A11 - Pump Check Valve Test
- A12 - Fuel System Restriction or Usage Test
- A13 - Relay Type Check
- A14 - CCRM Function Test
- A15 - Constant Control Relay Module Supply Voltage Test
- A16 - Check Voltage at Fuel Pump Relay
- A17 - Check Power Supply to Fuel Pump Relay
- A18 - Check Powertrain Control Module Relay and Wiring
- A19 - Check Powertrain Control Module Relay Ground
- A20 - Check Fuel Pump or PCM Relay Operation
- A21 - Check Voltage at Pin 22 (PCM)
- Locations
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
- Fuel Rail
- Fuel Return Line
- Fuel Supply Line
- Fuel Tank
- Idle Speed/Throttle Actuator - Electronic
- Inertia Fuel Shutoff Switch
- Intake Air Duct
- Main Relay (Computer/Fuel System)
- Relays and Modules - Fuel Delivery and Air Induction
- Rollover Valve
- Sensors and Switches - Fuel Delivery and Air Induction
- Throttle Body
- Throttle Cable/Linkage
- Throttle Position Sensor
- Service Precautions
- Description and Operation
- Testing and Inspection
- Symptom Related Diagnostic Procedures
- Pinpoint Tests
- AIS - Air Induction Diagnosis
- EFD - Fuel Delivery Diagnosis
- EFD1 - System Integrity Check
- EFD2 - Fuel Pressure Test
- EFD3 - Check Fuel Pressure Leak-down
- EFD4 - Check Pressure Regulator Diaphragm Condition
- EFD5 - Check Fuel Pressure With Engine Load
- EFD6 - Check Fuel Pressure Regulator
- EFD7 - Check Vacuum Supply
- EFD8 - Check Fuel Filter
- EFD10 - Check Regulator For High Pressure Causes
- EFD12 - Check Fuel Return System
- Service and Repair
- Diagrams
- Technical Service Bulletins
- Ignition System
- Firing Order
- Ignition Timing
- Calibration Resistor / Connector
- Camshaft Position Sensor
- Crankshaft Position Sensor
- Distributor
- Hall Effect Sensor
- Ignition Cable
- Ignition Coil
- Ignition Control Module
- Relays and Modules - Ignition System
- Sensors and Switches - Ignition System
- Spark Plug
- Vacuum Restrictor
- Service Precautions
- Application and ID
- Description and Operation
- Testing and Inspection
- Flow of Diagnosis
- Diagnostic Trouble Code Tests and Associated Procedures
- Pinpoint Tests
- Diagnostic Harness
- Preliminary Checkout, Equipment, and Notes
- Tester Abbreviations
- Pinpoint Tests
- AA - No Start
- AA1 - Were Tests In EEC-IV Quick Test Completed
- AA2 - Check For Good Battery
- AA3 - Check For Spark At Coil During Crank
- AA4 - Check For ICM Power
- AA5 - Check For PIP Signal
- AA6 - Check For Spout Signal
- AA7 - Check Coil PWR at Coil
- AA8 - Check For Coil- Signal
- AA9 - Check For Spark At All Wires
- AA10 - Check Plugs
- AA11 - Check For PIP Power At PIP Sensor
- AA12 - Check For PIP From PIP Sensor
- AA13 - Check For PIP With ICM Disconnected
- AA14 - Check PIP With PCM Disconnected
- AA15 - Check PIP A to PCM For Short High
- AA16 - Check PIP B to ICM For Short High
- AA17 - Check PIP In Harness For Short Low
- AA18 - Check For Spout In Harness
- AA19 - Check For Spout High
- AA20 - Check For Spout Short High In Harness
- AA21 - Check For Spout Short Low
- AA22 - Check For Spout Short Low In Harness
- AA23 - Check For PIP Open In Harness
- AA24 - Check IGN GND at PCM
- AA25 - Check For IGN GND at CMP Sensor
- AA26 - Check PIP A at CMP Sensor
- AA27 - Check For Coil- Open In Harness
- AA28 - Check For Coil- Short High In Harness
- AA29 - Check For Coil- Short Low In Harness
- AA30 - Check GND at ICM
- AA31 - Check GND at CMP Sensor
- AAA - No Start
- B - IDM Missing Code 18C or 212C
- C - Code 18R or 213 - Spout Open; Poor Economy, Driveability
- D - Intermittent Diagnosis
- AA - No Start
- Component Tests and General Diagnostics
- Oscilloscope Patterns and Waveforms
- Locations
- Diagrams
- Technical Service Bulletins
- Tools and Equipment
- Transmission Control Systems
- Application and ID
- Description and Operation
- Diagrams
- Technical Service Bulletins
- Transmission and Drivetrain
- Actuators and Solenoids - Transmission and Drivetrain
- Automatic Transmission/Transaxle
- Actuators and Solenoids - A/T
- Accumulator
- Band Apply Servo
- Clutch
- Extension Housing
- Fluid - A/T
- Fluid Line/Hose
- Fluid Pan
- Fluid Pump
- Governor
- Output Shaft
- Parking Pawl
- Planetary Gears
- Sensors and Switches - A/T
- Shift Interlock
- Shifter A/T
- Shift Linkage
- Throttle Valve Cable/Linkage
- Torque Converter
- Transmission Cooler
- Transmission Position Sensor/Switch
- Valve Body
- Application and ID
- Description and Operation
- Testing and Inspection
- Symptom Related Diagnostic Procedures
- All Upshifts Early
- Engine Overspeeds on 2-3 Shift
- Erratic Shifts
- Forward Engagement Slips/Shudders/Chatters
- Harsh Downshift Coasting Clunk
- Harsh and/or Delayed 2-3 Upshift
- Harsh and/or Delayed 3-4 Upshift
- Harsh Engagements With Warm Engine
- Initial Drive In 2ND or 3RD
- Initial Engagement Clunk W/Engine Warm
- Mushy and/or Early Upshifts or Upshift Pileup
- Mushy, Early, Soft, and/or Slipping 1-2 Upshift
- No Drive, Slips/Chatters In 1ST Gear In OD or D
- No Drive, Slips/Chatters In 2ND Gear
- No Engine Braking In Manual 2ND
- No Forced Downshifts
- No or Delayed Reverse Engage/No Engine Braking In Manual Low
- No or Delayed Forward Engagement
- No or Delayed Reverse Engagement
- No 1-2 Upshift
- No 2-3 Upshift
- No 3-4 Upshift
- Poor Vehicle Acceleration
- Reverse Shudders, Chatters, and/or Slips
- Rough Initial Engagement
- Rough or Mushy 4-2 or 3-1 Shift
- Rough Shudder 3-1 Shift at Closed Throttle In Overdrive
- Rough, Harsh, and/or Delayed 1-2 Upshift
- Shift Efforts High
- Shift Hunting 3-4 or 4-3
- Shift Points Incorrect
- Shift 1-3 In Overdrive
- Slipping 4TH Gear
- Slow Initial Engagement
- Soft, Early, and/or Mushy 2-3 Upshift
- Transmission Clunk or Squawk During 1-2 or 2-3
- Transmission Leaks
- Transmission Noisy (Other Than Valve Resonance)
- Transmission Noisy (with Valve Resonance)
- Transmission Overheats
- Vehicle Will Not Start
- Component Tests and General Diagnostics
- Shift Point Road Tests
- Special Testing Procedures
- Air Pressure Tests
- Throttle Valve Cable Diagnosis
- Throttle Valve Linkage Diagnosis
- Binding Grommets Preventing T.V. Linkage Return
- Clamping Bolt on Trunnion at Lower End of TV Control Rod Loose
- Interference Preventing Return of TV Control Rod
- Linkage Lever Return Spring Broken or Disconnected
- Transmission Lever Stuck In Wide Open or Part Throttle Position
- TV Control Linkage Adjusted Too Short
- TV Control Rod Disconnected
- TV Linkage Adjusted Too Long
- Symptom Related Diagnostic Procedures
- Service and Repair
- Technical Service Bulletins
- Differential Assembly
- Drive Axles, Bearings and Joints
- Drive/Propeller Shafts, Bearings and Joints
- Flex Plate
- Manual Transmission/Transaxle
- Sensors and Switches - Transmission and Drivetrain
- Transmission Control Systems
- Locations
- Technical Service Bulletins
- Tools and Equipment
- Brakes and Traction Control
- Antilock Brakes / Traction Control Systems
- ABS Light
- ABS Main Relay
- Brake Fluid Pump
- Brake Fluid Pump Relay
- Braking Sensor/Switch
- Diagnostic Connector - ABS
- Electronic Brake Control Module
- Hydraulic Control Assembly - Antilock Brakes
- Wheel Speed Sensor
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Reading and Clearing Diagnostic Trouble Codes
- Diagnostic Trouble Code Descriptions
- Diagnostic Trouble Code Tests and Associated Procedures
- Symptom Related Diagnostic Procedures
- Pinpoint Tests
- How to Use Pinpoint Tests
- A Warning Indicator ON/Brake Warning OFF)
- AA Anti-Lock Brake Control Module
- B ABS Lamp On After Engine Starts
- BB Solenoid Valve Diagnosis
- C Indicator ON or False Cycling
- CC DTC 31, 35, 41, 55 or 75 LH ABS Brake Sensor and Circuit
- D Brake Pedal Rises or Drops Excessively During ABS Cycling
- DD Wheel Sensor Diagnosis
- E ABS Motor Runs Continuously
- EE Fluid Level Indicator/Pedal Travel Switch/Pressure Switch
- F Brake Lamp ON (Antilock Lamp OFF, Parking Brake OFF)
- G No Warning Lamp On When Ignition Switch Turned On
- H Spongy Brake Pedal With/Without Antilock Function
- J Poor Tracking During ABS Function
- Component Tests and General Diagnostics
- Locations
- Diagrams
- Technical Service Bulletins
- Brake Bleeding
- Brake Pedal Assy
- Disc Brake System
- Drum Brake System
- Hydraulic System
- Parking Brake System
- Power Brake Assist
- Relays and Modules - Brakes and Traction Control
- Sensors and Switches - Brakes and Traction Control
- Service Precautions
- Description and Operation
- Testing and Inspection
- Technical Service Bulletins
- Antilock Brakes / Traction Control Systems
- Starting and Charging
- Sensors and Switches - Starting and Charging
- Charging System
- Starting System
- Power and Ground Distribution
- Diode
- Electronic Noise Suppressor
- Fuse
- Fuse Block
- Diagrams
- Diagram Information and Instructions
- Electrical Diagrams
- Technical Service Bulletins
- Locations
- Technical Service Bulletins
- Power and Ground Distribution
- Diode
- Electronic Noise Suppressor
- Fuse
- Fuse Block
- Diagrams
- Diagram Information and Instructions
- Electrical Diagrams
- Technical Service Bulletins
- Steering and Suspension
- Alignment
- Relays and Modules - Steering and Suspension
- Sensors and Switches - Steering and Suspension
- Steering
- Suspension
- Ball Joint
- Control Arm
- Cross-Member
- Lateral Stabilizer Rod
- Radius Arm
- Rear Knuckle
- Relays and Modules - Suspension
- Sensors and Switches - Suspension
- Spindle
- Stabilizer Bar
- Suspension Control ( Automatic - Electronic )
- Suspension Spring ( Coil / Leaf )
- Suspension Strut / Shock Absorber
- Suspension Travel Bumper
- Wheel Bearing
- Wheel Hub
- Specifications
- Technical Service Bulletins
- Wheels and Tires
- Locations
- Technical Service Bulletins
- Heating and Air Conditioning
- Air Door
- Ambient Temperature Sensor / Switch HVAC
- Blower Motor
- Blower Motor Resistor
- Cabin Ventilation Grille
- Compressor HVAC
- Compressor Clutch Relay
- Condenser HVAC
- Control Assembly
- Control Module HVAC
- Coupler HVAC
- Evaporator Case
- Evaporator Core
- Expansion Block/Orifice Tube
- Heater Core
- Hose/Line HVAC
- Refrigerant
- Refrigerant Filter
- Refrigerant Oil
- Relays and Modules - HVAC
- Sensors and Switches - HVAC
- Service Port HVAC
- Solar Sensor
- Vacuum Harness HVAC
- Vacuum Reservoir HVAC
- Service Precautions
- Description and Operation
- Testing and Inspection
- Reading and Clearing Diagnostic Trouble Codes
- Diagnostic Trouble Code Tests and Associated Procedures
- Symptom Related Diagnostic Procedures
- Component Tests and General Diagnostics
- Locations
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
- Restraints and Safety Systems
- Relays and Modules - Restraints and Safety Systems
- Seat Belt Systems
- Child Restraint
- Seat Belt
- Seat Belt Buckle
- Seat Belt Control Module
- Seat Belt Guide Track
- Seat Belt Motor
- Seat Belt Reminder Buzzer
- Seat Belt Reminder Lamp
- Seat Belt Retractor
- Seat Belt Warning Timer
- Seat Sensor/Switch
- Seat Belt Retractor Limit Switch
- Service Precautions
- Description and Operation
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- Pinpoint Tests
- Test Notes
- Test A: Track "A" Limit Switch Diagnosis
- Test B: Track "B" Limit Switch Diagnosis
- Test C: Door Ajar Switch Diagnosis
- Test D: Shoulder Belt Retractor Switch
- Test E: Grounds Check
- Test F: Voltage Check
- Test G: Motor Checks
- Test H: Warning Checks
- Test J: Passive Restraint Module Check
- Test K: Passive Restraint Quick Test
- Component Tests and General Diagnostics
Adjustments- Locations
- Service and Repair
- Diagrams
- Technical Service Bulletins
- Tools and Equipment
- Sensors and Switches - Restraints and Safety Systems
- Technical Service Bulletins
- Accessories and Optional Equipment
- Antenna
- Antitheft and Alarm Systems
- Driver/Vehicle Information Display
- Radio, Stereo, and Compact Disc
- Relays and Modules - Accessories and Optional Equipment
- Sensors and Switches - Accessories and Optional Equipment
- Locations
- Technical Service Bulletins
- Body and Frame
- Bumper
- Cabin Ventilation Grille
- Cowl
- Doors, Hood and Trunk
- Fender
- Frame
- Interior Moulding / Trim
- Locks
- Mirrors
- Paint, Striping and Decals
- Relays and Modules - Body and Frame
- Roof and Associated Components
- Seats
- Sensors and Switches - Body and Frame
- Spoilers, Flaps, and Air Dams
- Unibody
- Weatherstrip
- Locations
- Technical Service Bulletins
- Cruise Control
- Clutch Switch
- Cruise Control Brush Assembly
- Cruise Control Module
- Cruise Control Servo
- Cruise Control Servo Cable
- Cruise Control Switch
- Relays and Modules - Cruise Control
- Sensors and Switches - Cruise Control
- Vacuum Vent Valve
- Vehicle Speed Sensor/Transducer - Cruise Control
- Description and Operation
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- Speed Continuously Changes Up and Down
- Speed Control Is Inoperative
- Speed Control Operates But No Resume, Acceleration, or Coast
- Speed Control Operation Is Intermittent
- Speed Control System Does Not Disengage W/Brakes Applied
- Speed Gradually Increases or Decreases After Speed Is Set
- Speed Will Not Set In System
- Component Tests and General Diagnostics
- Locations
- Diagrams
- Instrument Panel, Gauges and Warning Indicators
- ABS Light
- Audible Warning Device
- Audible Warning Device Control Module
- Charge Lamp/Indicator
- Cigarette Lighter
- Dashboard / Instrument Panel
- Door/Trunk Ajar Indicator/Lamp
- Door Switch
- Driver/Vehicle Information Display
- Fuel Gauge
- Fuel Gauge Sender
- Instrument Cluster / Carrier
- Maintenance Required Lamp/Indicator
- Malfunction Indicator Lamp
- Oil Level Warning Indicator
- Oil Pressure Gauge
- Oil Pressure Sender
- Oil Pressure Warning Lamp/Indicator
- Relays and Modules - Instrument Panel
- Seat Belt Reminder Buzzer
- Seat Belt Reminder Lamp
- Sensors and Switches - Instrument Panel
- Temperature Gauge
- Temperature Sensor (Gauge)
- Temperature Warning Lamp/Indicator
- Description and Operation
- Locations
- Diagrams
- Technical Service Bulletins
- Lighting and Horns
- Ambient Light Sensor
- Backup Lamp
- Brake Lamp
- Brake Light Switch
- Center Mounted Brake Lamp
- Cornering Lamp
- Courtesy Lamp
- Daytime Running Lamp
- Door Switch
- Fog/Driving Lamp
- Hazard Warning Lamps
- Headlamp
- Horn
- Interior Lighting Module
- Relays and Modules - Lighting and Horns
- Sensors and Switches - Lighting and Horns
- Turn Signals
- Description and Operation
- Locations
- Diagrams
- Technical Service Bulletins
- Windows and Glass
- Wiper and Washer Systems
- Application and ID
- Testing and Inspection
- Locations
- Diagrams
- Diagram Information and Instructions
- Exploded Views
- Connector Views
- ABS Main Relay
- Air Door Actuator / Motor, HVAC
- Air Flow Meter/Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Alarm Module, (Vehicle Antitheft)
- Alternator
- Ambient Light Sensor
- Amplifier, Sound System
- Antenna Switch, Power
- Backup Lamp Switch
- Blower Motor Resistor
- Brake Fluid Pump
- Brake Fluid Pump Relay
- Brake Light Switch
- Clutch Switch, ECM
- Compact Disc Player (CD)
- Compressor Clutch Relay
- Control Assembly, HVAC
- Control Module HVAC
- Coolant Temperature Sensor/Switch (For Computer)
- Cornering Lamp
- Cruise Control Module
- Cruise Control Servo
- Data Link Connector
- Daytime Running Lamp Control Unit
- Diagnostic Connector - ABS
- Diagnostic Connector - Fuel Pump
- Electronic Brake Control Module
- Engine Control Module
- Fog/Driving Lamp Switch
- Fuel Pump Relay
- Fuse Block
- Hall Effect Sensor, Ignition
- Hazard Warning Flasher
- Headlamp Dimmer Switch
- Headlamp Relay
- Headlamp Switch
- Heated Glass Element Switch
- Hydraulic Control Assembly - Antilock Brakes
- Idle Speed/Throttle Actuator - Electronic
- Ignition Control Module
- Ignition Lock
- Ignition Switch
- Instrument Panel, Gauges and Warning Indicators
- Interior Lighting Module
- Keyless Entry Key-Pad
- Keyless Entry Module
- Neutral Safety Switch
- Oxygen Sensor
- Power Door Lock Switch
- Power Mirror Switch
- Power Seat Motor
- Power Seat Switch
- Power Window Switch
- Radio/Stereo
- Seat Belt Systems
- Steering Control Module
- Sunroof / Moonroof Switch
- Suspension Control Module
- Suspension Main Relay
- Suspension Mode Switch
- Throttle Position Sensor
- Transmission Position Sensor/Switch, A/T
- Turn Signal Flasher
- Turn Signal Switch
- Valve Body, A/T
- Vehicle Speed Sensor
- Voltage Regulator
- Wiper Control Module
- Wiper Motor
- Wiper Switch
- Electrical Diagrams
- Power and Ground Distribution
- Antenna
- Antilock Brakes / Traction Control Systems
- Antitheft and Alarm Systems
- Charging System
- Cruise Control
- Fuel Door Lock
- Heated Glass Element
- Heating and Air Conditioning
- Instrument Panel, Gauges and Warning Indicators
- Keyless Entry
- Lighting and Horns
- Mirrors
- Power Locks
- Powertrain Management
- Radio/Stereo
- Seat Belt Systems
- Seats
- Shift Interlock, A/T
- Starting System
- Steering
- Sunroof / Moonroof
- Trunk / Liftgate
- Windows
- Wiper and Washer Systems
- Mechanical Diagrams
- Fluid Diagrams
- Vacuum and Vapor Hose Diagrams
- Components
- Connectors
- Grounds
- Splices
- Specifications
- Electrical Specifications
- Alternator
- Computers and Control Systems
- System Specifications
- Air Flow Meter/Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Camshaft Position Sensor
- Coolant Temperature Sensor/Switch (For Computer)
- Idle Speed/Throttle Actuator - Electronic
- Oxygen Sensor
- Throttle Position Sensor
- Vehicle Speed Sensor
- Firing Order
- Fuel Injector
- Mechanical Specifications
- Air Flow Meter/Sensor
- Air Temperature Sensor ( Ambient / Intake )
- Alignment
- Alternator
- Brake Caliper
- Brake Drum
- Brake Hose/Line
- Brake Master Cylinder
- Brake Rotor/Disc
- Companion Flange
- Coolant Temperature Sensor/Switch (For Computer)
- Cylinder Identification Sensor
- Dashboard / Instrument Panel
- Differential Assembly
- Distributor, Ignition
- Drive/Propeller Shaft
- EGR Valve
- Engine
- Engine Control Module
- Exhaust System
- Flex Plate
- Fuel Filter
- Fuel Injector
- Fuel Pressure Regulator
- Fuel Rail
- Fuel Tank
- Heating and Air Conditioning
- Idle Speed/Throttle Actuator - Electronic
- Ignition Timing
- Intake Air Duct
- Parking Brake System
- Power Steering Pump
- Seat Belt
- Seat Belt Guide Track
- Seat Belt Motor
- Seat Belt Retractor
- Seat Belt Retractor Limit Switch
- Spark Plug
- Steering Column
- Steering Gear
- Steering Shaft Coupler
- Suspension
- Throttle Position Sensor
- Tie Rod
- Wheel Cylinder
- Wheel Speed Sensor
- Wheel Stud / Lug Nut
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
- Electrical Specifications
- Technical Service Bulletins
Diagnostic Trouble Codes