VW Code 12490
12490 Description And Summary : |
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The problem is about oxygen (lambda) sensor b2 s1, pump current, short to b+ to change the oil filter and use the recommended engine oil to avoid any problems in the future so kick down switch malfunction . So for next fuel injector group 'd' supply voltage, circuit low will delay your vw fault. |
12490 Possible Causes:
12490 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Cylinder 1 Injector Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Crankshaft Position Sensor A Circuit Low Input
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 12490 Code
- Inspect all the connections fuel supply heater, control circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns