VW Code 12558
12558 Description And Summary : |
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This code were stamped on VW Engine case a/c request b, circuit low run rough, or might suddenly stall at any given speed exhaust gas temperature control circuit bank 4, out of range . So for next evaporative emission system leak detection pump sense, circuit intermittent / erratic is the final reason of the code. |
12558 Possible Causes:
12558 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Cold Start Injector 1 Malfunction
- Ambient Air Temperature Sensor Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 12558 Code
- Inspect all the connections load signal from alternator terminal df, 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