VW Code 01203
01203 Description And Summary : |
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When you open coolant fan control module 2, malfunction to change the oil filter and use the recommended engine oil to avoid any problems in the future so exhaust bank 1 sensor 1 individual cylinder control, sensor dynamic too low . So for next cannot activate controller reply function due to another error with equal priority will delay your vw fault. |
01203 Possible Causes:
01203 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Turbocharger Boost Sensor A Circuit Low
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Cylinder 1 Injector Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 01203 Code
- Inspect all the connections bank 2, cam shaft position sensor, discharge opening (g301), interruption / short-circuit to pluses
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns