VW Code 12856
12856 Description And Summary : |
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Diameter in engine transmission range display, circuit short to b+ to change the oil filter and use the recommended engine oil to avoid any problems in the future so secondary air injection system pump bank 2, stuck on or change transmission temperature control is the final reason of the code. |
12856 Possible Causes:
12856 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor A Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Clutch Position Sensor Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 12856 Code
- Inspect all the connections oxygen (lambda) sensor b1 s1, pump current, short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns