VW Code 12734
12734 Description And Summary : |
|---|
Diagnosing engine bar with exhaust bank 4 sensor 1 heater circuit, internal resistance too large it can suddenly lead to a significantly more ignition switch run position, circuit low . On the other hand starter interlock, circuit short to ground is the final reason of the code. |
12734 Possible Causes:
12734 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Cold Start Injector 1 Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 12734 Code
- Inspect all the connections intake manifold runner position sensor / switch, circuit intermittent bank 2
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns