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 - Cooling System
 - Relays and Modules - Cruise Control
 - Relays and Modules - Engine
 - 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 - Starting and Charging
 - Relays and Modules - Steering and Suspension
 - Relays and Modules - Transmission and Drivetrain
 - Relays and Modules - Windows and Glass
 - 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
 - Barometric Pressure Sensor
 - Camshaft Position Sensor
 - Coolant Temperature Sensor/Switch (For Computer)
 - Crankshaft Position Sensor
 - Cylinder Identification Sensor
 - Air Temperature Sensor ( Ambient / Intake )
 - Knock Sensor
 - Oxygen Sensor
 - Power Steering Pressure Switch
 - 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
 - Timing Component Alignment Marks
 - Drive Belt
 - Filters
 - Hoses
 - Fluids
 - Brake Bleeding
 - Air Bag(s) Arming and Disarming
 - Fuses and Circuit Breakers
 - Service Reminder Indicators
 - Wheels and Tires
 - 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
 - Relays and Modules - 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
- Coolant
 - Radiator Cooling Fan
 - Engine - Coolant Temperature Sensor/Switch
 - Heater Core
 - Lamps and Indicators - Cooling System
 - Radiator Cap
 - Relays and Modules - Cooling System
 - Sensors and Switches - Cooling System
 - Temperature Gauge
 - Thermostat
 - Water Pump
 Description and Operation
Testing and Inspection
Service and Repair
Diagrams
Specifications
Technical Service Bulletins
 - 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
 - Barometric Pressure Sensor
 - Camshaft Position Sensor
 - Coolant Temperature Sensor/Switch (For Computer)
 - Crankshaft Position Sensor
 - Cylinder Identification Sensor
 - Air Temperature Sensor ( Ambient / Intake )
 - Knock Sensor
 - Oxygen Sensor
 - Power Steering Pressure Switch
 - 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 )
 - Auxiliary Air Valve (Idle Speed)
 - Barometric Pressure Sensor
 - Body Control Module
 - Brake Signal
 - Camshaft Position Sensor
 - Coolant Temperature Sensor/Switch (For Computer)
 - Crankshaft Position Sensor
 - Cylinder Identification Sensor
 - Data Link Connector
 - Diagnostic Mode Switch/Connector
 - Engine Control Module
 - Idle Speed/Throttle Actuator - Electronic
 - Integrated Control Relay Module
 - Knock Sensor
 - Main Relay (Computer/Fuel System)
 - Malfunction Indicator Lamp
 - Oxygen Sensor
 - Power Steering Pressure Switch
 - Pressure Feedback Exhaust Sensor
 - Relays and Modules - Computers and Control Systems
 - Sensors and Switches - Computers and Control Systems
- Air Flow Meter/Sensor
 - Barometric Pressure Sensor
 - Camshaft Position Sensor
 - Coolant Temperature Sensor/Switch (For Computer)
 - Crankshaft Position Sensor
 - Cylinder Identification Sensor
 - Air Temperature Sensor ( Ambient / Intake )
 - Knock Sensor
 - Oxygen Sensor
 - Power Steering Pressure Switch
 - 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
 - Reading and Clearing Diagnostic Trouble Codes
- Reading Diagnostic Trouble Codes
- Continuous Monitor Diagnostic Test Mode (Wiggle Test)
 - Output State Diagnostic Test Mode
 - Quick Test Appendix (Detailed Testing Instructions)
 - Quick Tests
- Testing Notes
 - 1.0-2.0 - Visual Check/Vehicle Preparation
 - 3.0 - Key On Engine Off Self Test
 - 3.1-4.0 - Check for Codes/Computed Timing Check
 - 5.0 - Engine Running Self-Test
 - 7.0 - Key On Engine Off (KOEO) 3 Digit Code Chart
 - 9.0 - Key On Engine Running (KOER) 3 Digit Code Chart
 - 11.0 - Continuous Memory 3 Digit Code Chart
 - 12.0 - Diagnosis By Symptom
 
 
 - Clearing Diagnostic Trouble Codes
 
 - Reading Diagnostic Trouble Codes
 - Diagnostic Trouble Code Tests and Associated Procedures
 - Symptom Related Diagnostic Procedures
- Diagnostic Routines
- Backfire (Intake or Exhaust)
 - Check Engine/Check DCL Message On
 - Check Engine/Service Engine Soon Light Always/Never On
 - Cranks Normally But Hard to Start
 - Cranks Normally But Won't Start
 - Engine Noise
 - Engine Runs Cold
 - Engine Runs Hot
 - Engine Vibrates At Normal/High Speeds
 - Engine Will Not Crank
 - Exhaust System Concerns (Visual Smoke)
 - Fails Smog Test
 - Gasoline Smell
 - Hesitates or Stalls On Acceleration
 - High Idle (Engine Diesels)
 - High Oil Consumption
 - Improper Shift
 - Lack of Power
 - Low Idle (Stalls On Deceleration or Quick Stop)
 - Misses Under Load
 - Notes On Using Diagnostic Routines
 - Poor Fuel Economy
 - Rough Idle
 - Shift Indicator Light and Audible Chimes On
 - Spark Knock/Ping
 - Starts Normally But Wont Run (Stalls)
 - Surges at Steady Speed
 
 - Symptom Charts
 - Intermittent Fault Diagnosis
 
 - Diagnostic Routines
 - Pinpoint Tests
- A - No Start Test
- A - Test Schematic
 - A - Testing Notes
 - A1 - Attempt to Crank Engine
 - A2 - Check For VREF At Throttle Position Sensor
 - A3 - Check For Spark At Plugs
 - A4 - Check For Spark At Coil
 - A5 - Check Continuity of Ground Circuit
 - A6 - Isolation of Problem to Spout Circuit
 - A7 - Check Spout Signal
 - A8 - Check Spout & PIP For Shorts
 - A9 - Isolate Short(s) In Processor
 - A10 - Check PIP Signal
 - A11 - Check Continuity of PIP Circuit
 - A12 - Spout Signal Verification
 - A13 - Attempt to Restart the Vehicle
 - A14 - Check Continuity of PIP Circuit
 - A15 - Check Continuity of PIP Circuit
 - A16 - Check PIP Circuit For Shorts
 - A17 - Isolate Shorts In Processor
 - A18 - Check PIP Signal
 - A20 - Check Fuel Pressure
 - A21 - Check Inertia Switch Resistance
 
 - 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 Voltage of VPWR At EEC Power Relay
 
 - C - Reference Voltage
- C - Testing Notes
 - 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/BP Sensor
 - C8 - Check For Shorted 4EAT Module
 - C9 - Check VREF Circuit 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
 
 - DC - Mass Air Flow (MAF) Sensor
- DC - Sensor Data
 - DC - Testing Notes and Schematic
 - DC1 - Check VPWR Circuit Voltage
 - DC2 - Check MAF Sensor Ground
 - DC10 - 66/157, 72/129 - Check Continuity of MAF and VPWR Ckts
 - DC11 - Check MAF For Shorts to Ground and MAF Rtn Circuit
 - DC12 - Check Continuity of PWR GND Circuit
 - DC13 - Check MAF Rtn Circuit Continuity
 - DC14 - Check MAF Circuit For Short to Ground
 - DC15 - Check MAF Circuit Output
 - DC20 - Rerun Self Test With MAF Sensor Disconnected
 - DC21 - Check MAF Circuit For Short to VPWR
 
 - DF - Manifold Absolute Pressure (MAP)/Barometric Pressure (BP)
 - DG - Knock Sensor
 - DH - Throttle Position (TP) Sensor
- DH - Table #1 - TP Sensor Specifications
 - DH - Test Pins 26, 47 & 46
 - DH - Testing Notes
 - DH - TP Sensor Graph
 - DH1 - Code 23/121: Check For Other Codes
 - DH2 - Check For Stuck Throttle Plate
 - DH3 - Code 53/112: Attempt to Generate Code 63/112
 - DH4 - Check VREF Voltage
 - DH5 - Check For Shorted 4EAT Module
 - DH6 - Check TP Circuit For Shorts to Power
 - DH10 - Code 63/122: Attempt to Generate Code 53/123 or 23/123
 - DH11 - Check VREF Circuit Voltage
 - DH12 - Check TP Circuit Continuity
 - DH13 - Check For Shorted 4EAT Module
 - DH14 - Check TP Circuit For Short to Ground
 - DH20 - Perform Dynamic Response Test At Wide Open Throttle
 - DH21 - Check TP Sensor Movement During Dynamic Response Test
 - DH90 - Monitor TP Circuit Under Simulated Road Shock
 - DH91 - Measure TPS Voltage While Exercising Sensor
 - DH92 - Check EEC Vehicle Harness
 - DH93 - Check Processor and Harness Connectors
 - DH94 - Monitor TP Circuit Under Simulated Road Shock
 - DH95 - Check EEC Vehicle Harness
 - DH96 - Check Processor and Harness Connectors
 
 - DL - PFE/DPFE Sensor; EVR Solenoid Testing
- DL - DPFE Sensor Data
 - DL - PFE 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
 - 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 - Service Code 32/326: Verify Engine Running Codes
 - DL21 - Rerun Self-Test w/EGR Vacuum Line Disconnected
 - DL22 - Check PFE/DPFE Sensor Supply Tube
 - DL25 - Check PFE/DPFE Input Pressure
 - DL26 - Check PFE/DPFE Sensor Output With Engine Idling
 - DL27 - Check PFE/DPFE Harness Circuit Continuity
 - DL28 - Check PFE/DPFE Harness Circuit For Shorts to Power
 - DL30 - Code 33/332: Verify Vacuum Present At EGR Valve
 - DL31 - Check Vacuum Input to the EVR Solenoid
 - DL32 - Enter Output State Check
 - DL33 - Check EVR Solenoid Electrical Operation
 - DL34 - Check Continuity of EVR Solenoid Circuits
 - DL35 - Check For EVR Signal Circuit Shorts
 - DL36 - Check Vacuum At the PFE/DPFE Pressure Inlet Hose(s)
 - DL37 - Check EGR Valve Operation
 - DL38 - Attempt to Generate KOEO Service Code 35/337
 - DL39 - Measure VREF Circuit Voltage
 - DL40 - Check PFE/DPFE Harness Circuit Continuity
 - DL41 - Check PFE/DPFE Harness For Shorts to Ground & Sig Rtn
 - DL90 - Exercise PFE/DPFE Sensor
 - DL91 - Check EEC-IV Vehicle Harness
 - DL92 - Check Processor and Vehicle Harness Connectors
 - DL93 - Inspect PFE Supply Tube For Blockage
 - DL94 - Check EGR Valve Operation
 - DL95 - Inspect Vacuum Lines Between EVR Solenoid and EGR Valve
 - DL96 - Inspect EVR Filter
 - DL97 - Attempt to Remove the Drive Symptom
 - DL98 - Rerun Self-Test With EGR Valve Vacuum Line Disconnected
 - DL99 - Check PFE/DPFE Sensor Pressure Inlet Hose For Blockage
 - DL100 - Continuous Memory Code 33/332: Check EGR Valve
 - DL101 - EVR Harness Check
 - DL102 - Check Pressure Sensor Output Voltage
 
 - DN - EGR Valve Position Sensor/EGR Vacuum Regulator Solenoid
- DN - Testing Notes and Schematic
 - DN1 - Code 31/327: Attempt to Generate Code 35/337
 - DN2 - Check VREF Circuit Voltage
 - DN3 - Check EVP Circuit Continuity
 - DN4 - Check EVP Circuit For Short to Ground
 - DN5 - Code 35/337: Attempt to Generate Code 31/327
 - DN6 - Check VREF Circuit Voltage
 - DN7 - Check EVP Circuit For Short to Power
 - DN10 - Service Code 84/558: Check Resistance of EVR Solenoid
 - DN11 - Check VPWR Circuit Voltage
 - DN12 - Check EVR Circuit Continuity
 - DN13 - Check EVR Circuit For Short to Power or Ground
 - DN20 - Code 34/334: Check For Code 84/558
 - DN21 - Check EVP Sensor and EGR Valve Operation
 - DN22 - Check EVR Solenoid Operation
 - DN23 - Substitute EVP Sensor On Original EGR Valve
 - DN25 - Service Code 32/328: Check EVP Sensor and EGR Valve
 - DN26 - Substitute EVP Sensor On Original EGR Valve
 - DN40 - Service Code 33/332: Verify Vacuum At EGR Valve
 - DN41 - Verify Vacuum Supply to EVR Solenoid
 - DN42 - Check Vacuum Hose Between EVR Solenoid & EGR Valve
 - DN43 - Check EVP Sensor and EGR Valve Operation
 - DN44 - Verify EGR Valve Vacuum Control
 - DN45 - Substitute Known Good EVP Sensor On Original EGR Valve
 - DN50 - Check EGR Operation In KOER With EGR Line Disconnected
 - DN51 - Check EVP Resistance While Applying Vacuum to EGR Valve
 - DN90 - Check EVP Signal Voltage While Exercising EVP Sensor
 - DN91 - Check EVP Sensor While In Continuous Monitor Mode
 - DN92 - Measure EVP Signal Voltage While Exercising EVP Sensor
 - DN93 - Check EEC-IV Vehicle Harness
 - DN94 - Check Processor and Harness Connectors
 - DN95 - Continuous Memory Code 33: Leak Test
 - DN96 - EVR Solenoid Check
 - DN98 - Check EVP Resistance While Applying Vacuum to EGR Valve
 - DN99 - EVR Check
 
 - DP - Vehicle Speed Sensor (VSS)
 - DR - Cylinder Identification (CID) Sensor
- DR - Testing Notes
 - DR1 - Check CID Sensor Resistance
 - DR2 - Check Continuity of CID Circuits
 - DR3 - Check CID Circuits For Shorts
 - DR4 - Check For Shorts In Processor
 - DR5 - Check CID Sensor Output
 - DR6 - Attempt to Regenerate Code 19/214
 - DR10 - Check CID Signal At Processor
 - DR11 - Check CID Continuity to Processor
 - DR12 - Check CID Circuit For Short to Voltage
 - DR13 - Check CID Circuit For Short to Ground
 - DR14 - Check For Shorts In Processor
 
 - FD - Brake On/Off (BOO) Switch
- FD - Testing Notes and Schematic
 - FD1 - 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 Short to Power In Brake/Shift Interlock Solenoid
 - FD10 - Check Operation of Brake Lamps
 - FD11 - Check BOO Circuit Continuity
 - 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
 
 - FF - Power Steering Pressure (PSP) Switch
- FF - Testing Notes and 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 - Engine Running Quick Test
 - 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 - Check For PSPS Always Closed
 - FF11 - Check For PSPS Always Open
 
 - G - In-Range MAF/TPS/Fuel Injector Pulse Width Test
- G - Data Chart
 - G - Fuel Pressure Specification Tables
 - G - Pinpoint Test Schematic
 - G - Test Schematic Wire Colors
 - G - Testing Notes
 - G1 - Throttle Position Sensor Integrity
 - G2 - Check Throttle Body
 - G3 - Check MAP/BP Sensor Output
 - G4 - Check ACT Sensor
 - G5 - Visually Inspect MAF Sensor
 - G6 - Check MAF Sensor
 - G7 - Visual Vacuum Checks
 - G8 - Check Fuel Pressure
 - G9 - Check Systems Ability to Hold Fuel Pressure
 - G10 - 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 Thermactor 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 - Try to Eliminate Code 41/171, 91/136 or 176. W/ MAP
 - 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 - Testing Notes and Tables
 - HA1 - Is the Vehicle A SEFI or EFI
 - HA2 - Run Cylinder Balance Test
 - HA3 - Check For Vacuum/Air Induction Leak
 - HA4 - Check For Low Fuel Pressure
 - HA5 - Check Systems Ability to Hold Fuel Pressure
 - HA6 - Check MAP/BP Frequency
 - HA7 - Check For Proper Battery Voltage to Fuel Injectors
 - HA8 - Verify That Canister Purge Solenoid Is Not Stuck Closed
 - HA9 - Check Thermactor System For Upstream Air Leak
 - HA15 - Continuous Codes 179, 182, 188, 191: Is Vehicle SEFI/EFI
 - HA16 - Run Cylinder Balance Test
 - HA17 - Check For Excessive Fuel Pressure
 - HA18 - Check Systems Ability to Hold Fuel Pressure
 - HA19 - Check MAP/BP Frequency
 - HA20 - Check Throttle Body and Air Induction System
 - HA21 - Verify That Canister Purge Solenoid Will Hold Vacuum
 - HA25 - Check PCV Valve
 - HA26 - Check HEGO Heater Circuit
 - HA27 - Inspect HEGO Sensor For Contamination
 - HA28 - Verify Excessive Vacuum Is Not At EGR Valve During Idle
 - HA29 - Verify EGR Valve Is Fully Seated
 - HA30 - Check Cooling System
 - HA35 - Check Ignition System
 - HA36 - Flow Check Injectors
 - HA37 - Check Cylinder Compression
 - HA40 - Road Test
 
 - J - Fuel Pump Circuit
- J - Testing Notes
 - J1 - No Fuel Pump Pressure: Check Fuel Pump Electrical Op.
 - J2 - Check For VPWR to Processor
 - J3 - Check For Voltage to Power-to-Pump Circuit
 - J4 - Check For Battery(+) to Fuel Pump Relay
 - J5 - Check For Voltage At Power-to-Pump Circuit
 - J7 - Service Code 87/556: Check For VPWR to Fuel Pump Relay
 - J8 - Check Fuel Pump Relay
 - J9 - Check Fuel Pump Circuit For Short to Power
 - J10 - Check Fuel Pump Circuit For Short to Ground
 - J11 - Check Fuel Pump Circuit Continuity
 - J20 - Service Code 95/542: Does Engine Start
 - J21 - Verify That Fuel Pump Is Off
 - J22 - Check For Fuel Pump Relay Always Closed
 - J23 - Check Continuity of FPM Circuit
 - J25 - Check Inertia Switch
 - J30 - Does Engine Start
 - J31 - Check For Battery(+) to Fuel Pump Relay
 - J32 - Check Continuity of Power-to-Pump Circuit
 - J33 - Check Power to Pump Circuit Continuity
 - J35 - Check Left/Front HEGO Sensor For Short to Power
 - J36 - Check HEGO Circuit For Short to Power
 - J90 - Check EEC-IV Harness
 - J91 - Check FPM Circuit
 - J92 - Check For Shorts to Power
 - J93 - Check For Continuous Memory Code 87/556
 - J94 - Check EEC-IV Harness
 - J95 - Check EEC-IV Harness
 - J96 - Check Left/Front HEGO Circuit For Short to Power
 - J99 - Road Test
 
 - KC - Air Management System - AM1/AM2
- KC - Testing Notes
 - KC1 - Service Code 44/311, 45/312, 46/313 and 94/314
 - KC2 - Attempt to Eliminate Service Code 45/312
 - KC3 - Attempt to Eliminate Service Code 46/313
 - KC4 - Enter Output State Check
 - KC5 - Check Solenoids Electrical Operation
 - KC6 - Check Solenoids For Vacuum Cycling
 - KC7 - Check Solenoids For Internal Vacuum Leaks
 - KC8 - Check Voltage of VPWR Circuit
 - KC9 - Measure Solenoid Resistance
 - KC10 - Check Circuit Continuity
 - KC11 - Check For Short to Ground
 - KC12 - Check For Short to Power
 
 - 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 - Measure 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 Base 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
 
 - KF - Electro Drive Fan (EDF)/High Electro Drive Fan (HEDF)
- KF - Testing Notes
 - KF - Testing Schematic
 - KF1 - Check For Ignition Start/Run Voltage At HEDF/EDF Relay
 - KF2 - Enter Output State Check
 - KF3 - Check For EDF/HEDF Circuit Cycling
 - KF4 - Check Continuity of EDF/HEDF Circuit
 - KF5 - Check EDF/HEDF Circuit For Short to Power
 - KF6 - Check EDF/HEDF Circuit For Short to Ground
 - KF10 - Cooling Fan Non-Op: Check For Voltage to EDF Relay
 - KF11 - Check For Voltage to HEDF Relay
 - KF12 - Check Continuity Between EDF and HEDF Relays
 - KF13 - Check Circuits From EDF Relay to Fan
 - KF14 - Check EDF Power-to-Fan Circuit Continuity
 - KF15 - Check Cooling Fan Ground Circuit
 - KF16 - Check Circuits From HEDF Relay to Fan
 - KF17 - Check HEDF Power-to-Fan Voltage At Fan
 - KF18 - Check HEDF Power-to-Fan Circuit Continuity
 - KF25 - Cooling Fan Always On: Verify Ignition Relay Is Opening
 - KF26 - Check For EDF Relay Always Closed
 - KF27 - Check HEDF Relay
 - KF28 - Check EDF Power-to-Fan Circuit For Short to Power
 
 - KL - Shift Indicator Light (SIL)
- KL - Testing Notes
 - KL1 - Check SIL Operation
 - 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 Voltage At Top Gear Switch
 - KL8 - Check Operation of Top Gear Switch
 - KL9 - Check Continuity of SIL Circuit
 - KL10 - 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 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 - 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 ACC/S Input to Processor
 - KM7 - Check For Ground to A/C Fan Controller
 - KM8 - Check For Voltage to A/C Fan Controller
 - KM9 - Check WAC Relay, A/C Fan Controller
 - KM15 - No A/C Cutout At WOT: Enter Output State Check
 - KM16 - Check For VPWR to Relay
 - KM17 - Check For WAC Cycling
 - KM18 - Check Resistance of WAC Relay Coil
 - KM19 - Check WAC Circuit Continuity
 - KM20 - Check WAC Circuit For Short to Power
 - KM21 - Check For WAC Cycling
 - KM22 - Check WAC Circuit Continuity
 - KM23 - Check WAC Circuit For Short to Power
 - KM30 - Cycle A/C Demand Switch
 - KM31 - Check ACD Circuit Continuity
 - KM35 - Check ACD Circuit For Short to Power
 - KM40 - Check A/C Input
 - KM41 - Check For Short to Power In Processor
 - KM43 - Check A/C Input Circuitry
 - KM44 - Check A/C Input Circuit
 
 - KP - Octane Adjust
- KP - Testing Notes and Schematic
 - 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 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 - "Check Engine" Light Always On: Check STO For Short
 - ML4 - "Check Engine" Light Never On: Check For VBAT At Fuse
 - ML5 - Check For VBAT Voltage Side of Check Engine Light Fuse
 - ML6 - Check Continuity of VBAT Circuit
 - ML7 - Check "Check Engine Light Bulb Response to Grounding
 - ML8 - Check "Check Engine" Light Circuit Continuity
 - ML10 - "Check Engine" Intermittently On: Check For STO Short
 - ML15 - "Check Engine" 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
 - 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 - Check IDM Circuit Continuity: TFI Module to Ignition Coil
 - NA5 - Check IDM Circuit For Short to Ground
 - NA6 - Check Processor For Short to Ground
 - NA7 - Check Ignition Module
 - NA8 - Check EEC-IV Harness
 - NA9 - Check Processor and Harness Connectors
 
 - PA - Spark Timing Check - TFI
 - QA - No Codes/Codes Not Listed
- QA - Testing Notes and Schematic
 - QA1 - Check VREF Voltage At Self-Test Connector
 - QA2 - Check STI Continuity
 - QA3 - Check STO Circuit Continuity
 - QA4 - Check HEGO Signal For Short to Power
 - QA5 - Isolate Short to Harness or HEGO Sensor
 - QA6 - Check STO Circuit For Short to Ground
 - QA7 - Check If Power Relay Is Always On
 - QA8 - Check VPWR Circuit For Short to Power
 - QA9 - Check "Check Engine" Light Function
 
 - QB - Key On Engine Off/Cont. Memory Code 15/511 or 15/512 Test
 - QC - Output State Check Not Functioning
 - S - System Check
 - T - Transmission - AXOD
- T - Sensor Data Graph
 - T - Test Schematic
 - T - Testing Notes
 - T10 - Circuit Identification
 - T11 - Enter Output State Check
 - T12 - Check Solenoid Electrical Operation
 - T13 - Check Solenoid Resistance
 - T14 - Check Continuity of Solenoid Signal and VPWR Harness
 - T15 - Check Solenoid Harness Circuits For Shorts
 - T16 - Check Solenoid VPWR Supplied By the Processor
 - T17 - Check Solenoid Driver Signal
 - T20 - Check Continuity of EPC Solenoid Signal and VPWR Circuits
 - T21 - Check EPC Signal Harness Circuit For Short
 - T22 - Check Solenoid Resistance
 - T23 - Check VPWR of the EPC Solenoid Supplied By the Processor
 - T24 - Check Output Driver Signal
 - T30 - Increase Transmission Oil Temperature
 - T31 - Check For VREF At Throttle Position Sensor
 - T32 - Check TOT Sensor Resistance Change As the TOT Is Varied
 - T40 - KOEO Code 637: Induce Opposite Code
 - T41 - Check Continuity of TOT Signal and Return Harness
 - T50 - KOEO Code 638: Induce Opposite Code
 - T51 - Check VREF At the Throttle Position Sensor
 - T52 - Check TOT Signal For Short to Ground
 - T60 - Complete TSS Drive Cycle: Verify Code
 - T61 - Check Continuity of Turbine Sped Sensor Harness Circuits
 - T62 - Check Turbine Speed Sensor Harness Circuits For Shorts
 - T63 - Check Turbine Speed Sensor Resistance
 - T70 - Check Turbine Speed Sensor Harness Circuit Continuity
 - T71 - Check Turbine Speed Sensor Harness Circuit For Shorts
 - T72 - Check Turbine Speed Sensor Resistance
 - T80 - Check Resistance of the Manual Lever Position Sensor
 - T81 - Check Resistance of the MLPS Harness Circuits
 - T82 - Check the MLPS Circuit For Shorts to Power or Ground
 - T83 - Check Processor Output Voltage
 - T90 - Prepare For AXODE Drive Cycle and Check For Error Codes
 - T91 - Attempt to Verify MLPS, TOT, or Solenoid Codes Received
 - T93 - Enter Key On Engine Off Continuous Monitor Mode
 - T94 - Check EEC-IV Vehicle Harness
 - T95 - Check Processor and Harness Connectors
 - T96 - Cont. Memory Codes 645, 646, 647, 648 Fault Isolation
 - T97 - Enter Key On Engine Off Continuous Monitor Mode
 
 - TA - Neutral Drive Input
 - X - Integrated Relay Control Module
- X - Testing Notes
 - X - Testing Schematic
 - X1 - Check Battery Voltage
 - X2 - Check Battery Ground
 - X3 - Ground Fault Isolation
 - X4 - Processor Ground Fault Isolation
 - X5 - Check Continuity of Signal Return Circuit
 - X6 - Measure Voltage and Ground to IRCM
 - X7 - Check Key Power to IRCM
 - X8 - Check VPWR Circuit Continuity
 - X9 - Measure Continuity of Power Ground to IRCM
 - X11 - Check Power-to-Pump(s) Circuit Voltage
 - X12 - Check Power-to-Pumps Circuit Continuity
 - X13 - Check Power to IRCM
 - X14 - Check Power-to-Pump(s) Circuit For Shorts to Power
 - X15 - Check Continuity of Fuel Pump Circuit
 - X16 - Check Appropriate Fuel Pump Circuit For Shorts
 - X17 - Check Resistance of Fuel Pump Relay Coil
 - X18 - No Engine Cooling Fan: Check Power Supply to IRCM
 - X19 - Check Fan Motor Operation
 - X20 - Check Fan Motor Operation
 - X21 - Measure Battery Voltage Supply At Fan - Bypassing IRCM
 - X22 - Verify Cooling Fan Ground
 - X23 - Measure Battery Voltage Supply At Fan - Bypassing IRCM
 - X25 - Check Fan Running Mode (Low)
 - X26 - Jumper High Electric-Drive Signal (HEDF) to Ground
 - X27 - Check ECT Sensor
 - X30 - Check HEDF Relay Resistance
 - X31 - Check HEDF Circuit Continuity
 - X32 - Check For Shorts to Ground In the HEDF Circuit
 - X33 - Check For Shorts to Power In the HEDF Circuit
 - X35 - Low Speed Fan Always On: Check EDF Circuit Continuity
 - X36 - Check EDF Circuit For Short to Power
 - X37 - EDF Circuit Fault Isolation
 - X40 - High Speed Cooling Fan (HEDF) Always On: Check For Shorts
 - X41 - Check Processor For Short to Ground
 - X42 - Check HEDF Circuit For Short to Ground
 - X50 - Check For Voltage At A/C Clutch
 - X51 - Check For Continuity From IRCM to A/C Clutch
 - X52 - Check For Voltage to Processor
 - X53 - Check Continuity of ACCS Circuit to IRCM
 - X54 - Check Voltage to Cyclic Pressure Switch
 - X55 - Check WAC Circuit For Shorts to Ground
 - X56 - Check Continuity In WAC to IRCM Circuit
 - X57 - Check WAC Circuit For Shorts to Power
 - X58 - Check For Voltage At A/C Clutch
 - X80 - Check EDF Signal For Short to Ground
 - X81 - Check Fan Running Mode
 - X82 - Fan Always On With Code 88: Check EDF Circuit Continuity
 - X83 - Check EDF Circuit For Shorts to Power
 - X84 - Check EDF Circuit For Shorts to Ground
 - X90 - Check Inertia Switch
 - X91 - Verify That Fuel Pump Is Off
 - X92 - Check For Fuel Pump Relay Always Closed
 - X93 - Check Continuity of FPM Circuit
 - X94 - Check For Continuity Between FPM Circuit and Ground
 - X95 - Check Front Left HEGO For Short to Power
 - X96 - Check HEGO Circuit For Short to Power
 - X100 - Check Power-to Pump(s) Circuit Continuity
 - X101 - Check Fuel Pump Operation
 - X102 - Measure Low Fuel Pump Relay Power Circuit Continuity
 - X103 - Check Power to IRCM
 - X105 - Check EEC-IV Harness
 - X106 - Check FPM Circuit
 - X110 - Check For Continuous Memory Code 83/557 or 87/556
 - X111 - Check EEC-IV Harness
 - X112 - Check EEC-IV Harness
 
 
 - A - 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
 - Emission Control Systems
- Air Injection
 - Catalytic Converter
 - Early Fuel Evaporation ( EFE )
 - Evaporative Emissions System
 - Exhaust Gas Recirculation
 - Positive Crankcase Ventilation
 - Sensors and Switches - Emission Control Systems
 Service Precautions
- Application and ID
 Description and Operation
Testing and Inspection
- Flow of Diagnosis
 - Symptom Related Diagnostic Procedures
 - Component Tests and General Diagnostics
 - Scan Tool Testing and Procedures
 
Adjustments
Locations
Service and Repair
Diagrams
Specifications
Tools and Equipment
 - Fuel Delivery and Air Induction
- Fuel Pressure
 - Fuel Pressure Release
 - Idle Speed
 - Air Cleaner Housing
 - Air Flow Meter/Sensor
 - Auxiliary Air Valve (Idle Speed)
 - Fuel
 - Fuel Filler Cap
 - Fuel Filter
 - Fuel Injector
 - Fuel Line Coupler
 - Fuel Pressure Check Valve
 - Fuel Pressure Regulator
 - Fuel Pump
 - Fuel Rail
 - Fuel Return Line
 - Fuel Supply Line
 - Fuel Tank
 - Idle Speed/Throttle Actuator - Electronic
 - Inertia Fuel Shutoff Switch
 - Integrated Control Relay Module
 - Main Relay (Computer/Fuel System)
 - Relays and Modules - Fuel Delivery and Air Induction
 - Sensors and Switches - Fuel Delivery and Air Induction
 - Throttle Body
 - Throttle Cable/Linkage
 - Throttle Position Sensor
 Service Precautions
- Application and ID
 Description and Operation
Testing and Inspection
Service and Repair
Diagrams
Specifications
Technical Service Bulletins
 - Ignition System
- Firing Order
 - Ignition Timing
 - Camshaft Position Sensor
 - Crankshaft Position Sensor
 - Distributor
 - Hall Effect Sensor
 - Ignition Cable
 - Ignition Coil
 - Ignition Control Module
 - Ignition Timing Connector
 - Knock Sensor
 - Relays and Modules - Ignition System
 - Sensors and Switches - Ignition System
 - Spark Plug
 Service Precautions
Description and Operation
Testing and Inspection
- Flow of Diagnosis
 - Component Tests and General Diagnostics
- Intermittent Diagnostic Procedures
 - Primary Circuit Tests
- Test 1, Ignition Coil Secondary Voltage (Crank Mode)
 - Test 2, Ignition Coil Secondary Voltage (Run Mode)
 - Test 3, Wiring Harness
 - Test 4, 5, & 6, Stator
 - Test 7, TFI Module
 - Test 8, Ignition Coil Secondary Wire
 - Test 9, EEC IV Wiring
 - Test 10, Wiring Harness
 - Test 11, Ignition Coil Supply Voltage
 - Test 12, TFI Supply Voltage
 - Test 13, Stator Supply Voltage
 - Test 14, Wiring Harness
 
 - Secondary Circuit Tests
 
 
Locations
Service and Repair
Diagrams
Technical Service Bulletins
Tools and Equipment
 - Transmission Control Systems
 - Application and ID
 Diagrams
Technical Service Bulletins
 - Transmission and Drivetrain
- Actuators and Solenoids - Transmission and Drivetrain
 - Automatic Transmission/Transaxle
- Actuators and Solenoids - A/T
 - Accumulator
 - Band
 - Band Apply Servo
 - Case
 - Clutch
 - Control Module
 - Data Link Connector, A/T
 - Differential
 - Drive Chain
 - Fluid - A/T
 - Fluid Filter - A/T
 - Fluid Line/Hose
 - Fluid Pan
 - Fluid Pump
 - Fluid Transfer Tube
 - Governor
 - Overdrive Assembly
 - Park Gear
 - Planetary Gears
 - Pressure Regulating Solenoid
 - Relays and Modules - A/T
 - Seals and Gaskets
 - Sensors and Switches - A/T
 - Shift Interlock
 - Shift Solenoid
 - Shifter A/T
 - Shift Linkage
 - Sun Gear
 - Throttle Valve Cable/Linkage
 - Torque Converter
 - Torque Converter Clutch Solenoid
 - Transmission Cooler
 - Transmission Mount
 - Transmission Position Sensor/Switch
 - Transmission Speed Sensor
 - Transmission Temperature Sensor/Switch
 - Turbine Shaft
 - Valve Body
 - Application and ID
 Description and Operation
Testing and Inspection
- Symptom Related Diagnostic Procedures
- Converter Clutch Does Not Release
 - Harsh Neutral to Reverse or Harsh Neutral to Drive
 - High or Low Oil Pressure
 - No Converter Clutch Apply
 - No Drive - Reverse OK
 - No Drive In Drive Range and No Reverse In Reverse Range
 - No Park Range
 - No Reverse - Drive OK
 - No 1-2 Shift (First Gear Only)
 - No 2-3 Shift (1-2 Shift OK)
 - No 3-4 Shift
 - Oil Leak
 - Oil Venting or Foaming
 - Transaxle Fluid Leaks
 - Transaxle Overheats
 - 1-2 Shift Feels Harsh or Soft
 - 1-2 Shift Speed High or Low
 - 2-1 or 3-1 Downshift Harsh
 - 2-3 Shift Feels Harsh or Soft
 - 2-3 Shift Speed High or Low
 - 3-2 Downshift Harsh
 - 3-4 Shift Feels Harsh or Soft
 - 3-4 Shift Speed High or Low
 - 4-3 Downshift Harsh
 
 - Component Tests and General Diagnostics
 
- Symptom Related Diagnostic Procedures
 Service and Repair
Specifications
Technical Service Bulletins
 - Clutch
 - Differential Assembly
 - Drive Axles, Bearings and Joints
 - Drive/Propeller Shafts, Bearings and Joints
 - Flex Plate
 - Manual Transmission/Transaxle
 - Relays and Modules - Transmission and Drivetrain
 - Sensors and Switches - Transmission and Drivetrain
 - Transmission Control Systems
 Testing and Inspection
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
 - Brake Fluid Pump Speed Sensor
 - Braking Sensor/Switch
 - Electronic Brake Control Module
 - Hydraulic Control Assembly - Antilock Brakes
 - Wheel Speed Sensor
 Description and Operation
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
- A ABS Warning Indicator ON (With Brake Warning Indicator OFF)
 - AA Anti-Lock Brake Control Module
 - B ABS Indicator ON after engine starts (Brake Indicator Off)
 - 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 Pump Motor Runs Continuously (Ignition ON / OFF)
 - EE Fluid Level Indicator/Pedal Travel Switch/Pressure Switch
 - F Brake Lamp ON (Antilock Lamp OFF, Parking Brake OFF)
 - G No ABS Warning Lamp On When Ignition Switch Turned On
 - H Spongy Brake Pedal With/Without Antilock Function
 - J Poor Tracking During ABS Function
 
 
Diagrams
Technical Service Bulletins
Tools and Equipment
 - Brake Bleeding
 - Brake Warning Indicator
 - 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
Testing and Inspection
Technical Service Bulletins
 - Antilock Brakes / Traction Control Systems
 - Starting and Charging
- Sensors and Switches - Starting and Charging
 - Relays and Modules - Starting and Charging
 - Battery
 - Charging System
 - Starting System
- Clutch Switch
 - Ignition Lock
 - Ignition Switch
 - Neutral Safety Switch
 - Starter Motor
 - Starter Relay
 - Starter Solenoid
 Testing and Inspection
Diagrams
Technical Service Bulletins
 - Power and Ground Distribution
 Technical Service Bulletins
 - Power and Ground Distribution
 - Steering and Suspension
- Alignment
 - Relays and Modules - Steering and Suspension
 - Sensors and Switches - Steering and Suspension
 - Steering
- Front Steering Knuckle
 - Power Steering
 - Relays and Modules - Steering
 - Sensors and Switches - Steering
 - Steering Column
 - Steering Gear
 - Steering Shaft
 - Steering Wheel
 - Tie Rod
 Description and Operation
Testing and Inspection
- Diagnosis By Symptom
- Electrical Component Diagnosis
 - External Linkage
 - High Efforts at Low Vehicle Speeds
 - High Steering Gear Efforts at All Vehicle Speeds
 - Loose On Center
 - Low Efforts at All Vehicle Speeds
 - Low Steering Gear Efforts Above 30 MPH
 - Noise/Rattle Chuckle/Clicks/Pops/Squeaks/Creaks/Clunk/Squawk
 - Poor Returnability
 - Smoothness/Sticky Feeling
 - Steering Wheel Not Centered Properly
 - Uneven Drive Efforts
 - Wandering/Darting/Pointing
 
 - System Pressure Test
 - External Leaks
 - Pump
 - Testing Notes
 - Torsion Bar Gear
 
- Diagnosis By Symptom
 Service and Repair
Diagrams
Specifications
Technical Service Bulletins
 - Suspension
 - Wheels and Tires
 Technical Service Bulletins
 - Heating and Air Conditioning
- Accumulator HVAC
 - Air Door
 - Ambient Temperature Sensor / Switch HVAC
 - Blower Motor
 - Blower Motor Resistor
 - Blower Motor Switch
 - Blower Override Switch
 - Cabin Temperature Sensor / Switch
 - Compressor HVAC
 - Compressor Clutch Relay
 - Condenser HVAC
 - Control Assembly
 - Control Module HVAC
 - Coupler HVAC
 - Evaporator Case
 - Evaporator Core
 - Expansion Block/Orifice Tube
 - Heater Core
 - High Pressure Safety Valve HVAC
 - Hose/Line HVAC
 - Housing Assembly HVAC
 - Refrigerant
 - Refrigerant Filter
 - Refrigerant Oil
 - Refrigerant Pressure Sensor / Switch
 - Relays and Modules - HVAC
 - Sensors and Switches - HVAC
 - Solar Sensor
 - Vacuum Controller
 - Vacuum Reservoir HVAC
 Service Precautions
Description and Operation
Testing and Inspection
Service and Repair
- Retrofitting
 - A/C System Flushing
 - Evacuation
 - Evacuation and Charging
 - Leak Detection
 - Oil Charge
 - Oil Level Check
 - Refrigerant Recovery
 - System Check
 - System Pressure Readings
 
Diagrams
Specifications
Technical Service Bulletins
 - Restraints and Safety Systems
- Air Bag Systems
- Air Bag(s) Arming and Disarming
 - Air Bag
 - Air Bag Control Module
 - Air Bag Deployment Door
 - Clockspring Assembly / Spiral Cable
 - Impact Sensor
 - Standby Power Supply
 - Malfunction Lamp / Indicator
 Service Precautions
Description and Operation
Testing and Inspection
- Initial Inspection and Diagnostic Overview
 - Reading and Clearing Diagnostic Trouble Codes
 - Diagnostic Trouble Code Tests and Associated Procedures
- Manufacturer Code Charts
- 2 Flashes - All Forward Crash Sensor Disconn
 - 3 Flashes - Loss of Deployment Pwr/Backup Pwr Supply
 - 4 Flashes -Potential Short In Air Bag Deployment Ckt
 - 5 Flashes - Short Forward Crash Sensor Deployment Ckt
 - 6 Flashes - Driver Air Bag Circuit Inoperative
 - 7 Flashes - Probable Fault - Monitor Wiring Ckt Inop
 - 8 Flashes - Fwd Crash Sen Improperly Attached/Grounded
 - 9 Flashes - Open Forward Crash Sensor Deployment Ckt
 - 10 Flashes - Disarm Device Blown/Deploy. Ckt Short
 
 - Diagnostic Trouble Code Priority Index
 - Non-Trouble Code Procedures
 
 - Manufacturer Code Charts
 - Pinpoint Tests
 
Service and Repair
Diagrams
Specifications
Technical Service Bulletins
Tools and Equipment
 - Relays and Modules - Restraints and Safety Systems
 - Seat Belt Systems
- Air Bag(s) Arming and Disarming
 - Child Restraint
 - Seat Belt
 - Seat Belt Buckle
 - Seat Belt Latch
 - Seat Belt Reminder Lamp
 Service Precautions
Description and Operation
Testing and Inspection
Adjustments
Locations
Service and Repair
Specifications
Technical Service Bulletins
Tools and Equipment
 - Sensors and Switches - Restraints and Safety Systems
 Technical Service Bulletins
 - Air Bag Systems
 - Accessories and Optional Equipment
- Antenna
 - Antitheft and Alarm Systems
 - Driver/Vehicle Information Display
 - Radio, Stereo, and Compact Disc
- Amplifier
 - Radio/Stereo
- Radio/Stereo Noise Filter
 Testing and Inspection
- A: All Electronic Radio Control Functional Test
 - B: Pac Radio Control Functional Test
 - C: Noisy AM Reception - Engine Running, Veh. In/Not In Motion
 - D: Noisy FM Reception - Engine Running, Vehicle Not In Motion
 - E: Radio Is Inoperative Or Intermittent
 - F: Radio Has Weak Reception
 - G: EPC Sound System - No Radio Sound From Any Speakers
 - H: ESR Sound System - No Sound From Any Speakers
 - I: EPC and ESR - No Sound From 1 or More Speakers
 - J: EPC and ESR - Distorted Sound From One Or More Speakers
 - K: CD Player Is Inoperative Or Intermittent
 
Service and Repair
Diagrams
Technical Service Bulletins
 - Speaker
 Service and Repair
Technical Service Bulletins
 - Relays and Modules - Accessories and Optional Equipment
 - Sensors and Switches - Accessories and Optional Equipment
 Locations
Diagrams
Technical Service Bulletins
 - Body and Frame
- Air Bag(s) Arming and Disarming
 - Body Control Systems
 - Bumper
 - Doors, Hood and Trunk
 - 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
 Technical Service Bulletins
 - Cruise Control
- Cruise Control Brush Assembly
 - Cruise Control Module
 - Cruise Control Servo
 - Cruise Control Servo Cable
 - Cruise Control Switch
 - Cruise Control Vacuum Vent Solenoid
 - Relays and Modules - Cruise Control
 - Sensors and Switches - Cruise Control
 - Vacuum Vent Valve
 Description and Operation
Testing and Inspection
Locations
Diagrams
Technical Service Bulletins
Tools and Equipment
 - Instrument Panel, Gauges and Warning Indicators
- ABS Light
 - Air Conditioning Indicator Lamp
 - Audible Warning Device
 - Brake Warning Indicator
 - Charge Lamp/Indicator
 - Cigarette Lighter
 - Clock
 - Dashboard / Instrument Panel
 - Door/Trunk Ajar Indicator/Lamp
 - Driver/Vehicle Information Display
 - Fuel Distance/Mileage Module
 - Fuel Gauge
 - Fuel Gauge Sender
 - Instrument Cluster / Carrier
- Air Bag(s) Arming and Disarming
 - Instrument Panel Bulb
 - Instrument Panel Circuit Board
 Description and Operation
Testing and Inspection
- Initial Inspection and Diagnostic Overview
 - Symptom Related Diagnostic Procedures
 - Component Tests and General Diagnostics
 
Service and Repair
Technical Service Bulletins
 - Key Reminder Switch
 - Lamp Out Indicator
 - Low Fuel Lamp/Indicator
 - Malfunction Indicator Lamp
 - Odometer
 - Oil Level Warning Indicator
 - Oil Level Warning Indicator Relay
 - Oil Pressure Gauge
 - Oil Pressure Sender
 - Oil Pressure Warning Lamp/Indicator
 - Parking Brake Warning Switch
 - Relays and Modules - Instrument Panel
 - Seat Belt Reminder Lamp
 - Sensors and Switches - Instrument Panel
 - Speedometer Cable
 - Speedometer Head
 - Speedometer Module
 - Tachometer
 - Temperature Gauge
 - Temperature Sensor (Gauge)
 - Volt Meter Gauge
 Description and Operation
Testing and Inspection
Diagrams
Technical Service Bulletins
 - Lighting and Horns
- Ambient Light Sensor
 - Backup Lamp
 - Brake Lamp
 - Brake Light Switch
 - Cornering Lamp
 - Courtesy Lamp
 - Daytime Running Lamp
 - Exterior Lighting Module
 - Fog/Driving Lamp
 - Hazard Warning Lamps
 - Headlamp
 - Horn
 - Lamp Control Module
 - Lamp Out Indicator
 - Relays and Modules - Lighting and Horns
 - Sensors and Switches - Lighting and Horns
 - Turn Signals
 - Underhood Lamp
 Locations
Diagrams
Technical Service Bulletins
 - Windows and Glass
 - Wiper and Washer Systems
- Relays and Modules - Wiper and Washer Systems
 - Sensors and Switches - Wiper and Washer Systems
 - Washer Fluid Level Switch
 - Windshield Washer Motor
 - Windshield Washer Pump
 - Windshield Washer Relay
 - Windshield Washer Switch
 - Wiper Control Module
 - Wiper Gear Box
 - Wiper Motor
 - Wiper Motor Linkage
 - Wiper Motor Timer
 - Wiper Relay
 - Wiper Switch
 Testing and Inspection
Locations
Diagrams
Technical Service Bulletins
 - Application and ID
 Locations
Diagrams
- Diagram Information and Instructions
 - Exploded Views
 - Connector Views
- Alternator
 - Compressor Clutch Relay
 - Diagnostic Mode Switch/Connector
 - Distributor, Ignition
 - Engine Control Module
 - Fuel Pump
 - Ignition Control Module
 - Ignition Lock
 - Integrated Control Relay Module
 - Main Relay (Computer/Fuel System)
 - Radiator Cooling Fan Control Module
 - Radiator Cooling Fan Motor Relay
 - Transmission Control Systems
 - Transmission Position Sensor/Switch, A/T
 - Windshield Washer Switch
 - Wiper Control Module
 - Wiper Switch
 
 - Electrical Diagrams
- Power and Ground Distribution
 - Accessories and Optional Equipment
 - Air Bag Systems
 - Antilock Brakes / Traction Control Systems
 - Charging System
 - Cooling System
 - Cruise Control
 - Heated Glass Element
 - Heating and Air Conditioning
 - Instrument Panel, Gauges and Warning Indicators
 - Lighting and Horns
 - Mirrors
 - Power Locks
 - Power Trunk / Liftgate Lock Switch
 - Power Window Circuit Breaker
 - Power Window Motor
 - Power Window Relay
 - Power Window Switch
 - Powertrain Management
 - Pressure Regulating Solenoid, A/T
 - Seats
 - Shift Solenoid, A/T
 - Starting System
 - Steering
 - Sunroof / Moonroof
 - Torque Converter Clutch Solenoid, A/T
 - Trunk / Liftgate Motor
 - Trunk / Liftgate Relay
 - Trunk / Liftgate Solenoid
 - Trunk / Liftgate Switch
 - Wiper and Washer Systems
 
 - Mechanical Diagrams
 - Fluid Diagrams
 - Vacuum and Vapor Hose Diagrams
 - Connectors
 - Grounds
 - Splices
 
Specifications
- Electrical Specifications
 - Mechanical Specifications
- Air Bag Systems
 - Alignment
 - Alternator
 - Antenna
 - Automatic Transmission/Transaxle
 - Axle Shaft
 - Backing Plate
 - Brake Caliper
 - Brake Drum
 - Brake Hose/Line
 - Brake Master Cylinder
 - Brake Rotor/Disc
 - Compressor Clutch
 - Compressor Clutch Relay
 - Computers and Control Systems
 - Dashboard / Instrument Panel
 - Differential Assembly
 - Distributor, Ignition
 - Emission Control Systems
 - Engine
 - Exhaust Crossover Pipe
 - Exhaust Manifold
 - Flex Plate
 - Fuel Delivery and Air Induction
 - Ignition Control Module
 - Ignition Timing
 - Radiator Cooling Fan Control Module
 - Radiator Cooling Fan Motor Relay
 - Seat Belt Systems
 - Spark Plug
 - Starter Motor
 - Steering
 - Suspension
 - Wheel Cylinder
 - Wheel Stud / Lug Nut
 
 - Pressure, Vacuum and Temperature Specifications
 - Capacity Specifications
 - Fluid Type Specifications
 
Technical Service Bulletins
Diagnostic Trouble Codes