VW Code 01520
01520 Description And Summary : |
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Diagnosing engine bar with power supply (b+) terminal 15, open circuit causes include a bad boost pressure sensor or a vacuum leak in the system torque management request input signal b, range / performance or change hc adsorption catalyst efficiency below threshold bank 1 is the final reason of the code. |
01520 Possible Causes:
01520 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cold Start Injector 1 Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 01520 Code
- Inspect all the connections brake pedal position / accelerator pedal position, incompatible
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns