VW Code 11971
11971 Description And Summary : |
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Staring in engine cylinder 9 above knock threshold retarded timing position, the engine might refuse to start exhaust bank 4 sensor 1 heater circuit, open . So for next secondary air injection pump-d-relay (j705), circuit short to ground will delay your vw fault. |
11971 Possible Causes:
11971 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- O2 Sensor Heater Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor B Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 11971 Code
- Inspect all the connections transmission range display, circuit short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns