CX-7 FWD L4-2.3L Turbo (2010)
2. Disconnect the HO2S connector.
3. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)
Open circuit
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If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
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HO2S terminal C and ignition switch
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HO2S terminal D and PCM terminal 2D
Short circuit
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If there is no continuity, there is a short circuit. Repair or replace the wiring harness.
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HO2S terminal A and body ground
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HO2S terminal B and power supply
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HO2S terminal B and body ground