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
- LH3.2/EZ-129K DI
- Fuel Injection System
- 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
- Motronic 4.3 SFI/DI
- With Auto Trans
- DTC 1-1-1 No Fault Detected
- DTC 1-1-2 Fault In ECM
- DTC 1-1-5 Injector 1
- DTC 1-2-1 Mass Air Flow Sensor Signal
- DTC 1-2-3 Engine Coolant Temperature Sensor Signal
- DTC 1-2-5 Injector 2
- DTC 1-3-1 Engine Speed Sensor Signal Missing
- DTC 1-3-2 Battery Voltage
- DTC 1-3-5 Injector 3
- DTC 1-4-3 Front Knock Sensor Signal
- DTC 1-4-5 Injector 4
- DTC 1-5-3 Rear Heated Oxygen Sensor Signal
- DTC 1-5-4 EGR System Leakage
- DTC 1-5-5 Injector 5
- DTC 2-1-2 Front Heated Oxygen Sensor Signal
- DTC 2-1-4 Engine Speed Sensor Signal Sporadic
- DTC 2-2-3 Idle Air Control Valve Opening Signal
- DTC 2-2-5 A/C Pressure Sensor Signal
- DTC 2-3-1 Long Term Fuel Trim, Part Load
- DTC 2-3-2 Long Term Fuel Trim, Idling
- DTC 2-3-3 Long Term Idle Air Trim
- DTC 2-4-1 EGR System Flow Malfunction
- DTC 2-4-5 Idle Air Control Valve Closing Signal
- DTC 3-1-1 Vehicle Speed Sensor Signal
- DTC 3-1-4 Camshaft Position Sensor Signal
- DTC 3-1-5 EVAP System
- DTC 3-2-5 Memory Failure
- DTC 3-3-5 Fault In Lead Between TCM and ECM
- DTC 4-1-1 Throttle Position Potentiometer Signal
- DTC 4-1-3 EGR Temperature Sensor Signal
- DTC 4-2-5 Rear Heated Oxygen Sensor Regulating
- DTC 4-3-2 Temperature Warning Level 1
- DTC 4-3-3 Rear Knock Sensor Signal
- DTC 4-3-5 Front Heated Oxygen Sensor Slow Response
- DTC 4-3-6 Rear Heated Oxygen Sensor Compensation
- DTC 4-4-3 Three Way Catalytic Converter Efficiency
- DTC 4-4-4 Acceleration Sensor Signal
- DTC 4-5-1 Misfire Cylinder 1
- DTC 4-5-2 Misfire Cylinder 2
- DTC 4-5-3 Misfire Cylinder 3
- DTC 4-5-4 Misfire Cylinder 4
- DTC 4-5-5 Misfire Cylinder 5
- DTC 5-1-3 Temperature Warning Level 2
- DTC 5-1-4 Engine Cooling Fan Low Speed Signal
- DTC 5-2-1 Front Heated Oxygen Sensor Preheating
- DTC 5-2-2 Rear Heated Oxygen Sensor Preheating
- DTC 5-3-1 Power Stage Group A
- DTC 5-3-2 Power Stage Group B
- DTC 5-3-3 Power Stage Group C
- DTC 5-3-4 Power Stage Group D
- DTC 5-4-1 EVAP Valve Signal
- DTC 5-4-2 Misfire More Than 1 Cylinder
- DTC 5-4-3 Misfire at Least 1 Cylinder
- DTC 5-4-4 Misfire More Than 1 Cylinder, TWC Damage
- DTC 5-4-5 Misfire at Least 1 Cylinder, TWC Damage
- DTC 5-5-1 Misfire Cylinder 1, TWC Damage
- DTC 5-5-2 Misfire Cylinder 2, TWC Damage
- DTC 5-5-3 Misfire Cylinder 3, TWC Damage
- DTC 5-5-4 Misfire Cylinder 4, TWC Damage
- DTC 5-5-5 Misfire Cylinder 5, TWC Damage
- With Manual Trans
- With Auto Trans
- LH3.2/EZ-129K DI
- Heating and Air Conditioning
- Power Seat Module (PSM)
- P Code Charts
- All Other P Codes
- P0102
- P0103
- P0116
- P0117
- P0118
- P0120
- P0122
- P0123
- P0130
- P0131
- P0132
- P0133
- P0135
- P0136
- P0137
- P0138
- P0140
- P0141
- P0171
- P0172
- P0201
- P0202
- P0203
- P0204
- P0205
- P0300
- P0301
- P0302
- P0303
- P0304
- P0305
- P0326
- P0331
- P0336
- P0400
- P0402
- P0422
- P0440
- P0445
- P0500
- P0605
- P0705
- P0715
- P0730
- P0745
- P0750
- P0755
- P1101
- P1102
- P1307
- P1308
- P1310
- P1326
- P1329
- P1401
- P1403
- P1404
- P1405
- P1416
- P1417
- P1418
- P1505
- P1506
- P1507
- P1508
- P1617
- P1618
- 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)
- LH3.2/EZ-129K DI (With Manual Transmission)
- Motronic 4.3 SFI/DI
- With Auto Trans
- DTC 1-1-1
- DTC 1-1-2
- DTC 1-1-5
- DTC 1-2-1
- DTC 1-2-3
- DTC 1-2-5
- DTC 1-3-1
- DTC 1-3-2
- DTC 1-3-5
- DTC 1-4-3
- DTC 1-4-5
- DTC 1-5-3
- DTC 1-5-4
- DTC 1-5-5
- DTC 2-1-2
- DTC 2-1-4
- DTC 2-2-3
- DTC 2-2-5
- DTC 2-3-1
- DTC 2-3-2
- DTC 2-3-3
- DTC 2-4-1
- DTC 2-4-5
- DTC 3-1-1
- DTC 3-1-4
- DTC 3-1-5
- DTC 3-2-5
- DTC 3-3-5
- DTC 4-1-1
- DTC 4-1-3
- DTC 4-2-5
- DTC 4-3-2
- DTC 4-3-3
- DTC 4-3-5
- DTC 4-3-6
- DTC 4-4-3
- DTC 4-4-4
- DTC 4-5-1
- DTC 4-5-2
- DTC 4-5-3
- DTC 4-5-4
- DTC 4-5-5
- DTC 5-1-3
- DTC 5-1-4
- DTC 5-2-1
- DTC 5-2-2
- DTC 5-3-1
- DTC 5-3-2
- DTC 5-3-3
- DTC 5-3-4
- DTC 5-4-1
- DTC 5-4-2
- DTC 5-4-3
- DTC 5-4-4
- DTC 5-4-5
- DTC 5-5-1
- DTC 5-5-2
- DTC 5-5-3
- DTC 5-5-4
- DTC 5-5-5
- With Manual Trans
- With Auto Trans
- 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