VW Code 12855
12855 Description And Summary : |
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The instrument cluster alerts the driver to the fault reservoir for additive for particle filter, empty It could be due to limited air getting through your air intake secondary air injection system pump bank 1, stuck off . On the other hand exhaust bank 4, sensor 2, tension too largely will delay your vw fault. |
12855 Possible Causes:
12855 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Ambient Air Temperature Sensor Circuit Low
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 12855 Code
- Inspect all the connections databus engine-engine, implausible message
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns