P014A

12B008 - P014A

Information saved in
DME

Fault code
12B008 - P014A

Fault text
Oxygen sensor after catalytic converter 2, trailing throttle,
from rich to lean: delayed response

Fault description
The diagnostic function monitors the voltage of the signal
from the post-catalyst oxygen sensor 2 during overrun
operation.

Condition for fault identification
Test condition:
The fault is recognized when the voltage exceeds 0.151 V
during operation on overrun.
Potential problem source(s):
- Oxygen sensor too cold during overrun operation
- Defective wiring harness
- Oxygen sensor faulty
Terminal condition: none
Voltage condition:
- None
Temperature condition:
- Engine temperature > 85 °C
Time condition:
- None
Other conditions:
- Engine on

Condition for fault memory entry
This fault is logged in the control module's fault memory if
it remains present for longer than 10 sec.

Action in service
- Check wiring harness
- Replace oxygen sensor

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