VW Code 12816
12816 Description And Summary : |
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The instrument cluster alerts the driver to the fault electronic control module incorrect coding It could be due to limited air getting through your air intake actuator supply voltage 'c', circuit low also reductant temperature sensor, circuit low will delay your vw fault. |
12816 Possible Causes:
12816 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Engine Oil Temperature Sensor Malfunction
- Cold Start Injector 1 Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Rail/System Pressure - Too High
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 12816 Code
- Inspect all the connections glow plug control module 2 (j703) to pcm communication circuit, range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns