Diagnosis conditions
- Charge pressure control active
Possible fault cause
- Leakage at pressure hoses from frequency valve to the bypass flaps
- Frequency valve faulty
- Vacuum modulators for bypass flaps leaking
- Bypass flaps incorrectly adjusted
Diagnosis/Troubleshooting
P0237
P0237
353 Pressure Sensor - Below Limit
Diagnosis conditions
- Ignition on
Possible fault cause
- Short circuit to ground
- Pressure sensor faulty
Affected terminals
III/39
Diagnosis/Troubleshooting
P0238
P0238
353 Pressure Sensor - Above Limit
Diagnosis conditions
- Ignition on
Possible fault cause
- Short circuit to B+