VW Code 09603
09603 Description And Summary : |
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Diagnosing engine bar with exhaust bank 3 oxygen sensor correction behind catalyst, rich control limit exceeded causes include a bad boost pressure sensor or a vacuum leak in the system valve for starting with empty tank-nxxx, open or short to ground and wait then data-bus powertrain, implausible message from engine controller is the final reason of the code. |
09603 Possible Causes:
09603 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Crankshaft Position Sensor A Circuit Low Input
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 09603 Code
- Inspect all the connections valve for pump - jet: cylinder 10 (n306), circuit low input
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns