Verification

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 rear heated oxygen sensor (HO2S) signal diagnostic trouble code (DTC) status.

The text NOT READY is displayed if the diagnosis is underway.

Is FAULT NOT REGISTERED displayed?

YES: Refer to Diagnostic Trouble Code Descriptions. Diagnostic Trouble Code Descriptions
NO: Refer to Fault-Tracing Information - Permanent Fault. Fault-Tracing Information - Permanent Fault