Checking Components

Checking Components







CAUTION: Do not apply rust solvent spray or grease to the heated oxygen sensor (HO2S) connector.

Check the front heated oxygen sensor (HO2S) connector (bank 2). Check for contact resistance and oxidation.

Try a new rear heated oxygen sensor if the above measure does not remedy the fault.

Remedy as necessary.

Other Information
- Connecting the breakout box
- Signal specification, engine control module (ECM)
- Heated oxygen sensor (HO2S), replacing
- Checking wiring and terminals

Continue: Refer to Verification. Verification