VW Code 11521
11521 Description And Summary : |
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Diagnosing engine bar with tiptronic switch recognition, circuit short to ground retarded timing position, the engine might refuse to start fuel supply heater, control circuit / open and wait then fuel additive control module requested mil illumination will delay your vw fault. |
11521 Possible Causes:
11521 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Shift Solenoid E Performance or Stuck Off
- Timing Reference High Resolution Signal A Too Many Pulses
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Rail Pressure Sensor Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 11521 Code
- Inspect all the connections butterfly valve control unit 2 (j544), lower notice one does not reach
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns