P114C

118901 - P114C

Information saved in
DME

Fault code
118901 - P114C

Fault text
Oxygen sensor after catalytic converter 2, fine mixture
control: exhaust gas after catalytic converter too rich

Fault description
The diagnostic function monitors the voltage of the oxygen
sensor behind the catalytic converter.

Condition for fault identification
Test condition:
The fault is recognized when the signal from the post-
catalyst oxygen sensor 2 exceeds 0.898 V during moderate
vehicle operation.
Potential problem source(s):
- Collateral fault
- Defective wiring harness
- Leak in exhaust system
- Pre-catalyst or post-catalyst oxygen sensor is defective
- Defective DME
Terminal condition: Terminal 15
Voltage condition:
- None
Temperature condition:
- None
Time condition:
- None
Other conditions:
- Drive at 50 - 80 km/h and moderate rpm
- No additional diagnostic fault codes logged

Condition for fault memory entry
The diagnostic fault code is logged when the fault remains
present for longer than 4 min.

Action in service
- If other faults are present repair these first
- Check wiring harness
- Check exhaust system for leaks
- Replace oxygen sensor
- Replace DME

Fault effect and breakdown warning
Breakdown notice:
- none
Possible apparent symptoms:
- none

Driver information
Warning light:
- ECE emissions warning lamp: on
- US emissions warning lamp: on
- ECE electronic engine power reduction: off
- US electronic engine power reduction: off
- CC message: none

Service instruction
- none