Faulty Signal

ECM-D00E FRONT HEATED OXYGEN SENSOR (HO2S)
FAULTY SIGNAL

Replacing component
Try a new front heated oxygen sensor (HO2S). Select Continue when this has been done.

- To access/replace the front heated oxygen sensor (HO2S), Heated Oxygen Sensor (HO2S), Replacing


Verification
Hint: After carrying out the repair, check that the fault has been remedied.
- Ignition off.
- Reconnect connectors, reinstall components.
- Start the engine and let it idle.
- Read off the lambda value for the rear heated oxygen sensor (HO2S).
After 25 seconds idling, the value should stabilize at 0.8 - 1.2.

Is the value OK?
Yes - Testing Complete.
No - Continue below.


Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed. Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.