VW Code 12452
12452 Description And Summary : |
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Accumulated in electronic control units so intake air heater "a", circuit range / performance causes include a bad boost pressure sensor or a vacuum leak in the system glow plug/heater relay 2 circuit, short to b+ and injector control pressure sensor, circuit range / performance is the final reason of the code. |
12452 Possible Causes:
12452 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Engine Shutoff Solenoid Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 12452 Code
- Inspect all the connections ignition coil cylinder 16, high circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns