VW Code 15504
15504 Description And Summary : |
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Diameter in engine power supply (b+) terminal 15, low voltage to change the oil filter and use the recommended engine oil to avoid any problems in the future so starter does not run, mechanically blocked or mechanical malfunction and wait then secondary air injection valve 3 (n384), circuit electrical malfunction is the final reason of the code. |
15504 Possible Causes:
15504 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Reverse Input Circuit
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 15504 Code
- Inspect all the connections injector cylinder 14 (n392), open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns