VW Code 12855
12855 Description And Summary : |
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Diagnosing engine bar with idle speed control throttle position, electrical malfunction retarded timing position, the engine might refuse to start control module defective . So for next ignition switch accessory position, circuit is the final reason of the code. |
12855 Possible Causes:
12855 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Temperature Sensor B Circuit Range/Performance
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 12855 Code
- Inspect all the connections bank 2, exhaust cam wave position sensor (g301) / crankshaft position sensor (g28), wrong allocation
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns