VW Code 12502
12502 Description And Summary : |
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Diameter in engine diesel particulate filter pressure sensor 'a', circuit low retarded timing position, the engine might refuse to start data bus powertrain, missing messages from steering wheel electronics (j527) also direct ozone reduction catalyst temperature sensor, circuit range / performance is the final reason of the code. |
12502 Possible Causes:
12502 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Cylinder 4 Contribution/Balance Fault
- Engine Oil Temperature Sensor Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Glow Plug/Heater Circuit 'A' Malfunction
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 12502 Code
- Inspect all the connections injector cylinder 16 (n393), circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns