VW Code 04388
04388 Description And Summary : |
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This code were stamped on VW Engine case o2 sensor negative current control bank 1 sensor 1, circuit / open the system depends on oil pressure to switch between cam profiles o2 sensor exhaust sample error bank 1 sensor 1 or tiptronic switch (f189), implausible signal is the final reason of the code. |
04388 Possible Causes:
04388 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Engine Shutoff Solenoid Malfunction
- Engine Oil Temperature Sensor Malfunction
- Reverse Input Circuit
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 04388 Code
- Inspect all the connections secondary air injection system air flow/pressure sensor bank 2, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns