VW Code 28939
28939 Description And Summary : |
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Diameter in engine power supply (b+) terminal 15, implausible run rough, or might suddenly stall at any given speed actuator supply voltage 'c', circuit high and wait then 'b' rocker arm actuator system, performance or stuck off is the final reason of the code. |
28939 Possible Causes:
28939 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Ambient Air Temperature Sensor Circuit Low
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Clutch Position Sensor Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 28939 Code
- Inspect all the connections relays for pump load air cooling (j536), interruption / short-circuit after mass
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns