VW Code 02502
02502 Description And Summary : |
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When you open starter activation, return message terminal 50, short to b+ retarded timing position, the engine might refuse to start oxygen (lambda) sensor b3 s1, heater return coupling and wait then exhaust bank 3 sensor 1, inner resistance implausible is the final reason of the code. |
02502 Possible Causes:
02502 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Reverse Input Circuit
- Cylinder 1 Injector Circuit Low
- Crankshaft Position Sensor B Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 02502 Code
- Inspect all the connections ignition coil 'h' secondary circuit, malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns