Checking cables
Check front heated oxygen sensor (HO2S) connector for Contact resistance and oxidation .
Check signal cable (+) between control module #A42 and heated oxygen sensor (HO2S) connector terminal 4 for an intermittent open-circuit according to Open-circuit, intermittent faults .
Check signal cable (-) between control module #A41 and heated oxygen sensor (HO2S) connector terminal 3 for an intermittent open-circuit according to Open-circuit, intermittent faults .
Other information
- To connect the breakout box, see Connecting the breakout box
- To access the control module, see Replacing the engine control module (ECM)
- To access/replace the heated oxygen sensor (HO2S), see Heated oxygen sensor (HO2S), replacing
- For information about signals, see Signal specification .
- Continue
Refer to Information