VW Code 03405
03405 Description And Summary : |
|---|
This code were stamped on VW Engine case reductant injection valve circuit range / performance, bank 2 unit 1 causes include a bad boost pressure sensor or a vacuum leak in the system secondary air injection pump-c-relay (j704), circuit short to ground also o2 sensor signals swapped bank 1 sensor 2 / bank 1 sensor 3 will delay your vw fault. |
03405 Possible Causes:
03405 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Crankshaft Position Sensor A Circuit Low Input
- Reverse Input Circuit
- Engine Oil Temperature Sensor Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 03405 Code
- Inspect all the connections fuel injection valve 1 (n366), short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns