GM OBD1 Trouble Codes List – OBDCodex
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A GM OBD1 codes list provides a comprehensive list of diagnostic codes that can be retrieved from GM vehicles' OBD1 system. The list includes a brief description of each code which it's helpful for mechanics and DIY enthusiasts. This list applies for GM vehicles, including Chevrolet, Buick, GMC, Cadillac. Visit our site to discover further about OBD Codes: www.obdcodex.com
GM OBD1 Trouble Codes List – OBDCodex
•0 recomendaciones•19 vistas
Denunciar
A GM OBD1 codes list provides a comprehensive list of diagnostic codes that can be retrieved from GM vehicles' OBD1 system. The list includes a brief description of each code which it's helpful for mechanics and DIY enthusiasts. This list applies for GM vehicles, including Chevrolet, Buick, GMC, Cadillac. Visit our site to discover further about OBD Codes: www.obdcodex.com
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GM OBD1 Trouble Codes List – OBDCodex
- 1. GM OBD1 TROUBLE CODES LIST Compiled by www.obdcodex.com
- 2. Code 12 System OK ( Diagnosis mode active ) Code 13 Oxygen O2 Sensor Circuit open/no activity Code 14 Coolant Temperature sensor Resistance too high or shorted circuit Code 15 Coolant Temperature Sensor Circuit low or open Code 16 Direct ignition system (DIS) Faulty circuit / shorted circuit Code 17 Camshaft Position Sensor Circuit/timing error Code 18 Camshaft or Crankshaft Sensor/circuit/timing error Code 19 Crankshaft sensor Sensor/circuit/timing error Code 21 Throttle position sensor Out of range/Performance Code 22 Throttle position sensor Low Voltage Code 23 Intake Air temp sensor Out of range, low resistance Code 24 Vehicle speed sensor Circuit fault Code 25 Intake Air temp sensor Out of range, high resistance Code 26 QDM A ( Quad-driver module ) Circuit #1 fault Code 27 QDM A ( Quad-driver module ) 2nd gear circuit GM OBD1 Codes List 1 Code Definition Causes
- 3. Code 28 QDM A ( Quad-driver module ) Circuit #2 fault Code 29 QDM A ( Quad driver module ) 4th gear circuit Code 31 Wastegate solenoid Circuit fault Code 32 EGR ( Exhaust Gas Recirculation ) Circuit fault Code 33 Manifold Air Pressure Sensor Signal out of range, high resistance Code 34 Manifold Air Pressure Sensor Signal out of range, low resistance Code 35 Idle air control valve / Sensor Circuit fault Code 36 Ignition system Circuit error/fault Code 37 TCC brake switch Circuit fault Code 38 Brake input ( Brake switch sensor ) Circuit fault Code 39 Clutch input ( Clutch sensor ) Circuit fault Code 41 Camshaft sensor Circuit fault or ignition control or circuit fault/error (depending on the car model) Code 42 EST (Electronic spark timing) Circuit grounded/shorted GM OBD1 Codes List 2 Code Definition Causes
- 4. Code 43 Knock sensor / Electronic spark control Circuit fault error (depending on the car model) Code 44 Oxygen O2 sensor – Lean Mixture Circuit fault Code 45 Oxygen O 2sensor – Rich Mixture Circuit fault Code 46 Pass-key II Circuit or power steering pressure switch – circuit fault error (depending on the car model) Code 47 PCM data Circuit error/fault Code 48 Misfire (diagnosis) Code 51 Calibration error Mem-cal, ECM, or EPROM failure Code 52 Engine oil temperature circuit Low temperature indicated / circuit error Code 53 Battery voltage Low/high/error or Egr valve solenoid 1 or circuit error (depending on the car model ) Code 54 Fuel Pump Circuit error or Egr valve solenoid 2 or Circuit error (depending on the car model ) Code 57 Boost control Error / Faulty GM OBD1 Codes List 3 Code Definition Causes
- 5. Code 58 Vehicle anti-theft system ( VATS ) Circuit faulty Code 59 Trans fluid temp sensor Circuit error (high voltage) Code 61 AC (Air conditioning) system performance or degraded oxygen sensor signal Error / Faulty Code 62 Engine oil temperature sensor High temperature indicated Code 63 Oxygen O2 sensor right side Circuit open or MAP (manifold air pressure sensor ) – out of range (depending on the car model ) Code 64 Oxygen O2 sensor right side Lean mixture indicated Code 65 Oxygen O2 sensor right side Rich mixture indicated Code 66 A/C (Air conditioning ) pressure sensor Circuit low pressure Code 67 A/C (Air conditioning ) pressure sensor Circuit or a/c clutch – circuit failure (depending on the car model) Code 68 A/C (Air conditioning ) compressor relay Circuit failure error Code 69 A/C (Air conditioning ) clutch Circuit/pressure high GM OBD1 Codes List 4 Code Definition Causes
- 6. Code 70 A/C (Air conditioning ) refrigerant pressure Circuit high Code 71 A/C (Air conditioning ) evaporator temperature sensor Circuit low Code 72 Gear selector switch Circuit error/fault Code 73 A/C (Air conditioning) Evaporator temperature Circuit high Code 75 Digital EGR #2 Solenoid error/faulty Code 76 Digital EGR #3 Solenoid error/faulty Code 77 Digital EGR #1 Solenoid error/faulty Code 79 Vehicle speed sensor (VSS) Circuit signal high resistance Code 80 Vehicle speed sensor (VSS) Circuit signal low resistance Code 81 Brake input data Circuit faulty Code 82 Ignition control (IC) 3X Signal error/faulty circuit Code 85 PROM Error/faulty circuit Code 86 Analog/digital PCM error /faulty circuit Code 87 EPROM Error / faulty circuit Code 90 TCC error Error / faulty circuit GM OBD1 Codes List 5 Code Definition Causes
- 7. Code 93 Transmission pressure control solenoid Circuit error/fault Code 96 Transmission system voltage low Error / faulty circuit Code 98 Invalid PCM program Error / faulty circuit Code 99 Invalid PCM program Error / faulty circuit GM OBD1 Codes List 5 Code Definition Causes