Oxygen O2 sensor right side – Lean mixture indicated Oxygen O2 sensor right side – Circuit open or MAP (manifold air pressure sensor ) – out of range (depending on the car model ) Vehicle anti-theft system ( VATS ) – Circuit faultyĪC (Air conditioning) system performance or degraded oxygen sensor signal (depending on the car model)Įngine oil temperature sensor – High temperature indicated Quad-driver module (QDM B) – Circuit error Pass-key II – Circuit or Power steering pressure switch – circuit fault error (depending on the car model)Ĭalibration error – Mem-cal, ECM, or EPROM failureĮngine oil temperature circuit – Low temperature indicated / circuit errorīattery voltage – Low/high/error or Egr valve solenoid 1 – circuit error (depending on the car model )įuel Pump – Circuit error or Egr valve solenoid 2 – Circuit error (depending on the car model )ĮCM PCM – Circuit error or EGR valve solenoid 3 – Circuit error (depending on the car model ) Knock sensor / Electronic spark control – Circuit fault error (depending on the car model) Idle air control valve / Sensor – Circuit faultīrake input ( Brake switch sensor ) – Circuit faultĬlutch input ( Clutch sensor ) – Circuit faultĬamshaft sensor – Circuit fault or ignition control – circuit fault/error (depending on the car model)ĮST (Electronic spark timing) – Circuit grounded/shorted Manifold Air Pressure Sensor – Signal out of range, low resistance Manifold Air Pressure Sensor – Signal out of range, high resistance
Ford diagnostic codes list obd1 driver#
QDM A ( Quad driver module ) – 4th gear circuitĮGR ( Exhaust Gas Recirculation ) – Circuit fault QDM A ( Quad-driver module ) – Circuit #2 fault QDM A ( Quad-driver module ) – 2nd gear circuit QDM A ( Quad-driver module ) – Circuit #1 fault Intake Air temp sensor – Out of range, high resistance Intake Air temp sensor – Out of range, low resistance
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Throttle position sensor – Out of range/Performance
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Oxygen O2 Sensor – Circuit open/no activityĬoolant Temperature sensor – Resistance too high or shorted circuitĬoolant Temperature Sensor – Circuit low or openĭirect ignition system (DIS) – Faulty circuit / shorted circuitĬamshaft Position Sensor – Circuit/timing errorĬamshaft or Crankshaft – Sensor/circuit/timing errorĬrankshaft sensor – Sensor/circuit/timing error
Ford diagnostic codes list obd1 manual#
Check your repair manual for the trouble codes of your car model. We do not take responsibility for any faults in this code list. The OBD1 codes’ meanings can differ a bit depending on what car model you have, but most of them are the same among all car manufacturers. Here is a complete OBD1 trouble code list.