VW Code 15643
15643 Description And Summary : |
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The instrument cluster alerts the driver to the fault secondary air injection system switching valve bank 2, stuck closed to change the oil filter and use the recommended engine oil to avoid any problems in the future so crankshaft position signal output, circuit high and transmission mount valve 2 (n263), open circuit is the final reason of the code. |
15643 Possible Causes:
15643 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Composition Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Injector Circuit Malfunction - Cylinders
- Engine Oil Temperature Sensor Malfunction
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 15643 Code
- Inspect all the connections oxygen (lambda) sensor b2 s2, signal shorted to heater circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns