P0153
P0153Oxygen sensor in front of catalytic converter, bank 2 - below limit value
Diagnostic conditions - V8
- Engine at operating temperature
- Three minutes at fast idle speed (keep engine speed constant between 2,000 rpm and 4,000 rpm)
- Or, alternatively, drive at a constant speed between 60 km/h and 80 km/h (37 mph and 50 mph) at in highest gear on a level road surface (for approx. 10 minutes)
Diagnostic conditions - V6
- Engine at operating temperature
- Oxygen sensing active (Lambda value between 0.95 and 1.05)
- 72 seconds at fast idle speed (keep engine speed constant between 1,240 rpm and 4,000 rpm)
- Engine load between 15 % and 60 %
Possible cause of fault
- Oxygen sensor is dynamically inert
Affected terminals
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Diagnosis/troubleshooting
Distinguishing feature of both sensors:
Oxygen sensor in front of catalytic converter (LSU) has a six-pin plug
Oxygen sensor behind catalytic converter (LSF) has a four-pin plug
