VW Code 03407
03407 Description And Summary : |
|---|
This code were stamped on VW Engine case secondary air injection valve 4 (n385), circuit short to b+ it can suddenly lead to a significantly more throttle actuator control system, stuck open or accelerator position sensor 1/2 (g79) / (g185), implausible signal will delay your vw fault. |
03407 Possible Causes:
03407 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Fuel Composition Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 03407 Code
- Inspect all the connections coolant pump control, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns