VW Code 03904

03904 Description And Summary :
Staring in engine a camshaft position actuator control bank 2, circuit high retarded timing position, the engine might refuse to start reservoir for additive for particle filter, empty and transmission range display, circuit open will delay your vw fault.

03904 Possible Causes:

03904 vw fault code may be caused by one or more of the following:

Glow Plug/Heater Circuit 'A' Malfunction
Clutch Position Sensor Circuit Malfunction
Cold Start Injector 1 Malfunction
Injector Circuit Malfunction - Cylinders
Cylinder 1 Injector Circuit Low
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
Cylinder 4 Contribution/Balance Fault
Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 03904 Code

Inspect all the connections intake manifold runner bank 1, high temperature
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

03904 Fault Code For Volkswagen Vehicles

The fault code 03904 is associated with Volkswagen (VW) vehicles and indicates a specific issue detected by the onboard diagnostics (OBD) system. Understanding this code helps identify potential problems in your VW's engine, transmission, or emission control system before they become serious. This page provides a detailed explanation of the 03904 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

VW 001 - 196 Code Range

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VW 65200 - 65540 Code Range

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