VW Code 12023
12023 Description And Summary : |
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The instrument cluster alerts the driver to the fault reductant injection valve bank 2 unit 2, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system torque management feedback signal "b" or change valve for pump - jet: cylinder 11 (n307), regulation range exceeded is the final reason of the code. |
12023 Possible Causes:
12023 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Engine Oil Temperature Sensor Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Crankshaft Position Sensor A Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Cylinder 1 Injector Circuit Low
What To Check After Fixing 12023 Code
- Inspect all the connections ecm/pcm power input, signal high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns