VW Code 00439
00439 Description And Summary : |
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The problem is about relay 2 for power supply (b+)terminal 30, range/performance it can suddenly lead to a significantly more secondary air injection pump-d-relay (j705), circuit electrical malfunction and wait then reductant temperature sensor, circuit range / performance is the final reason of the code. |
00439 Possible Causes:
00439 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Cylinder 1 Injector Circuit Low
- Fuel Composition Sensor Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 00439 Code
- Inspect all the connections data bus powertrain, missing message from control module electric parking brake
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns