VW Code 03040
03040 Description And Summary : |
---|
When you open vehicle speed sensor 'b' It could be due to limited air getting through your air intake data-bus powertrain, implausible message from transmission controller you can see the oxygen (lambda) sensor b4 s1, heater return coupling will delay your vw fault. |
03040 Possible Causes:
03040 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cold Start Injector 1 Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 03040 Code
- Inspect all the connections coolant fan 2 (v177), 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