A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection
- Diagnostic Trouble Code Descriptions
- P Code Charts
 - Manufacturer Code Charts
- Antilock Brake System (ABS)
 - Automatic Transmission (AT)
 - Engine Control System
- DTC Quick Reference
 - Detailed DTC Descriptions
- Fuel Injection System
- DTC 1-1-1 No Fault Detected
 - DTC 1-1-2 MFI Control Module
 - DTC 1-1-3 Short Term Fuel Trim, Upper Limit
 - DTC 1-2-1 Mass Air Flow Sensor Signal
 - DTC 1-2-3 Engine Coolant Temperature Sensor Signal
 - DTC 1-3-1 Engine Speed Signal From Ignition Control Module
 - DTC 1-3-2 Battery Voltage
 - DTC 2-1-2 Heated Oxygen Sensor Signal
 - DTC 2-2-1 Long Term Fuel Trim, Part Load, Lower Limit
 - DTC 2-2-3 Idle Air Control Valve Signal
 - DTC 2-3-1 Long Term Fuel Trim, Part Load, Lower Limit
 - DTC 2-3-2 Long Term Fuel Trim, Idling, Upper Limit
 - DTC 3-1-1 Vehicle Speed Sensor Signal
 - DTC 4-1-1 Throttle Position Potentiometer
 - DTC 5-1-1 Long Term Fuel Trim, Idling, Lower Limit
 - DTC 5-1-2 Short Term Fuel Trim, Lower Limit
 
 - Ignition System
- DTC 1-1-1 No Fault Detected
 - DTC 1-1-2 Ignition Control Module
 - DTC 1-2-3 Engine Coolant Temperature Sensor Signal
 - DTC 1-3-1 Engine Speed Sensor Signal
 - DTC 1-4-3 Front Knock Sensor Signal
 - DTC 1-4-4 Mass Air Flow Sensor (Load Signal)
 - DTC 1-5-4 EGR System Leakage
 - DTC 2-1-4 Engine Speed Sensor Signal Sporadic
 - DTC 2-4-1 EGR System Flow Fault
 - DTC 3-1-1 Vehicle Speed Sensor Signal
 - DTC 3-1-4 Camshaft Position Sensor Signal Missing
 - DTC 3-2-4 Camshaft Position Sensor Signal Sporadic
 - DTC 4-1-1 Throttle Position Potentiometer Signal
 - DTC 4-1-3 EGR Temperature Sensor Signal
 - DTC 4-3-2 Temperature Warning Level 1
 - DTC 4-3-3 Rear Knock Sensor Signal
 - DTC 5-1-3 Temperature Warning Level 2
 
 
 - Fuel Injection System
 
 - Heating and Air Conditioning
 - Power Seat Module (PSM)
 
 
 - P Code Charts
 - Manufacturer Code Charts
- ABS Codes (Antilock Brake System Control Module)
- DTC 1-2-X, 2-1-X, 2-2-X, 3-2-X [EA]
- General DTC Information
 - Procedures
- Other Diagnosis Trouble codes (DTCs) [EA1]
 - Checking Signal From Wheel Sensor [EA2]
 - Checking Resistance In Wheel Sensor Circuit [EA3]
 - Checking Wheel Sensor Resistance [EA4]
 - Checking Wheel Sensor [EA5]
 - Checking Control Module Grounding [EA6]
 - Checking Wheel Bearing [EA7]
 - Checking Wheel Sensor and Pulse Wheel [EA8]
 - Checking Parking Brake [EA9]
 - Checking Outer Valves [EA10]
 - Checking Leads and Terminals [EA11]
 
 
 - DTC 1-4-1 [EB]
- General DTC Information
 - Procedures
- Checking Resistance In Circuit to Pedal Sensor [EB1]
 - Checking Pedal Sensor Resistance [EB2]
 - Checking Signal Lead Resistance [EB3]
 - Checking Ground Lead Resistance [EB4]
 - Check If Signal Lead Shorted to Ground Lead [EB5]
 - Checking Pedal Sensor Markings [EB6]
 - Checking Pedal sensor [EB7]
 - Checking Signal Lead [EB8]
 - Checking Leads and Terminals [EB9]
 - Checking Pedal Sensor Is Working [EB10]
 
 
 - DTC 1-4-2 [EC]
 - DTC 1-4-3 [ED]
 - DTC 1-4-4 [EE]
 - DTC 3-1-X [EF]
- General DTC Information
 - Procedures
- Check Status [EF1]
 - Checking Resistance In Wheel Sensor Circuit [EF2]
 - Check Resistance In Wheel Sensor [EF3]
 - Check Resistance In Signal Lead [EF4]
 - Check Resistance In Ground Lead [EF5]
 - Check Signal Lead For Short to Ground Lead [EF6]
 - Check Signal Lead Connector [EF7]
 - Checking Ground Lead Connector [EF8]
 - Check Signal Lead [EF9]
 - Checking Leads And Terminals [EF10]
 - Test Drive [EF11]
 
 
 - DTC 4-1-X, 4-2-1, 4-2-2, 4-2-3 [EG]
- General DTC Information
 - Procedures
- Check Status [EG1]
 - Check Resistance In the Circuit to the Valve [EG2]
 - Check Hydraulic Unit Connector C/ED [EG3]
 - Check Resistance In Hydraulic Unit Valves [EG4]
 - Check Signal Lead [EG5]
 - Check Signal Lead Resistance to Ground [EG6]
 - Check Signal Lead For Short-Circuit to Supply [EG7]
 - Check Control Module [EG8]
 - Checking Control Module Is Working Properly [EG9]
 - Intermittent Fault [EG10]
 
 
 - DTC 4-2-4 [EH]
- General DTC Information
 - Procedures
- Other DTC's [EH1]
 - Check Resistance In the (TRACS) Pressure Sensor Circuit [EH2]
 - Checking Hydraulic Unit Connector [EH3]
 - Checking Resistance In (TRACS) Pressure Sensor [EH4]
 - Check Signal Lead [EH5]
 - Check (TRACS) Pressure Sensor Circuit Resistance [EH6]
 - Check Signal Lead Resistance to Ground [EH7]
 - Check Ground Lead Resistance to Ground [EH8]
 - Checking (TRACS) Pressure Sensor Circuit Is Shorted to B [EH9]
 - Check (TRACS) Pressure Sensor Activation [EH10]
 - Intermittent Fault [EH11]
 
 
 - DTC 4-4-1 [EJ]
 - DTC 4-4-2 [EK]
 - DTC 4-4-3 [EL]
- General DTC Information
 - Procedures
- Checking Pump Motor With Ignition Off [EL1]
 - Checking Combination Relay [EL2]
 - Checking Pump Motor With Ignition on [EL3]
 - Checking Pump Motor and Rotation Sensor [EL4]
 - Checking Supply [EL5]
 - Checking Supply to Pump Motor [EL6]
 - Checking Control Signal to Combine Relay [EL7]
 - Checking Ground Lead [EL8]
 - Checking Pump Motor Circuit Resistance to Ground [EL9]
 - Checking Pump Motor [EL10]
 - Checking Combination Relay [EL11]
 - Checking Resistance In Rotation Sensor Circuit [EL12]
 - Checking Resistance In Rotation Sensor [EL13]
 - Checking Signal Lead (+) [EL14]
 - Checking Signal Lead (-) [EL15]
 - Checking If Signal Leads Short-Circuited to One Another [EL16]
 - Checking Combination Relay [EL17]
 - Checking Rotation Sensor Circuit Resistance to Ground [EL18]
 - Checking Signal Lead (+) Resistance to Ground [EL19]
 - Checking Signal Lead (-) Resistance to Ground [EL20]
 - Checking For Rotation Sensor Circuit Short to Supply [EL21]
 - Checking Signal From Rotation Sensor [EL22]
 - Checking Control Module [EL23]
 - Intermittent Fault [EL24]
 
 
 - DTC 4-4-4 [EM]
- General DTC Information
 - Procedures
- Checking Status [EM1]
 - Checking Resistance In Circuit to Valves [EM2]
 - Checking Hydraulic Unit Connector [EM3]
 - Checking Resistance In Hydraulic Unit [EM4]
 - Checking Reference Lead Resistance [EM5]
 - Checking Resistance to Ground In Circuit to Valves [EM6]
 - Checking Resistance to Ground of Hydraulic Unit [EM7]
 - Checking Reference Lead Resistance to Ground [EM8]
 - Checking Resistance to Ground on Power Supply to ECM [EM9]
 - Checking 30-Supply to Combination Relay [EM10]
 - Checking Power Supply to Valves [EM11]
 - Checking 15I Supply To combination Relay [EM12]
 - Checking Signal Lead Resistance [EM13]
 - Checking Signal Lead For Short-Circuit to Supply [EM14]
 - Checking Combination Relay [EM15]
 - Intermittent Fault [EM16]
 
 
 
 - DTC 1-2-X, 2-1-X, 2-2-X, 3-2-X [EA]
 - AT / DTC Codes (Transmission Control Module)
 - Cruise Control System
 - ECC / MCC / DTC Codes (Heating and Air Conditioning)
- DTC 1-2-1
 - DTC 1-2-2
 - DTC 1-2-3 and 1-2-5
 - DTC 1-2-4 and 1-2-6
 - DTC 1-3-1 and 1-3-3
 - DTC 1-3-2 and 1-3-4
 - DTC 1-3-5
 - DTC 1-4-1 and 1-4-3
 - DTC 1-4-5
 - DTC 1-5-1 and 1-5-2
 - DTC 2-1-1, 2-2-1, 2-3-1, 2-3-3, and 2-3-5
 - DTC 2-1-2, 2-2-2, 2-3-2, 2-3-4 and 2-3-6
 - DTC 3-1-1, 3-1-2, 3-1-3, 3-1-4 and 3-1-5
 - DTC 3-2-1, 3-2-2, 3-2-3, 3-2-4 and 3-2-5
 - DTC 4-1-1
 - DTC 4-1-2 and 4-1-5
 - DTC 4-1-3 and 4-1-6
 - DTC 4-1-4 and 4-1-7
 - DTC 4-1-8
 - DTC 4-1-9
 - DTC 4-2-0
 - DTC 5-1-1
 
 - EFI / DTC Codes (Engine Control System)
 - SRS Codes (Supplemental Restraint System)
 - VDO Instrument Panel
- DTC 1-1-2 Fuel Gauge Sensor Short-Circuit
 - DTC 1-1-3 Fuel Gauge Sensor Open-Circuit
 - DTC 1-2-1 Temp. Sensor Interval Too Short
 - DTC 1-2-2 Temp. Sensor Interval Too Long
 - DTC 1-2-3 Digital Output 48 Pulse Short-Circuit To Supply
 - DTC 1-3-1 Digital Output 12 Pulse Short-Circuit To Supply
 - DTC 1-3-2 No RPM Sensor Signal
 - DTC 1-3-3 Tank Signal To Trip Computer Short To Supply
 
 
 - ABS Codes (Antilock Brake System Control Module)
 
- Diagnostic Trouble Code Descriptions