VW Code 18631
18631 Description And Summary : |
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This something to do with the intake camshaft timing controller for radiator exhaust oh run (j138), interruption / short-circuit after mass run rough, or might suddenly stall at any given speed b camshaft position actuator control bank 1, circuit low also signal buzzer activation, short to b+ is the final reason of the code. |
18631 Possible Causes:
18631 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Reverse Input Circuit
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 18631 Code
- Inspect all the connections secondary air injection pump-d-relay (j705), circuit electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns