Checking wiring and connectors
Check the heated oxygen sensor (HO2S) connector. Check for contact resistance and oxidation. Check for loose connections.
Check the signal cable between heated oxygen sensor (HO2S) terminal #4 and control module terminal #A18 (#A18). Check the power supply between system relay terminal #3 and heated oxygen sensor (HO2S) terminal #3. Check for an intermittent open-circuit.
Other information
- To connect the breakout box / access the control module, see Connecting the breakout box
- To access or replace the heated oxygen sensor (HO2S), see Heated oxygen sensor (HO2S), replacing
- For information about signals on 5 cylinder engines, see Signal specification
- For information about signals on 6 cylinder engines:
- For 6 cylinder engines -2001, see Signal specification
- For 6 cylinder engines 2002-, see Signal specification
- For 6 cylinder engines -2004, see Signal specification
- For 6 cylinder engines 2005-, see Signal specification .
- See Contents .
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Refer to Information