Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
HO2S2 - Check HO2S Sensor Ground
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Key OFF.
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Disconnect the HO2S connector.
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Measure the resistance of the GND wire between the GND terminal at the HO2S sensor harness connector and ground.
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Is the resistance less than 5 ohms? Yes -- Go to H02S3.
HO2S3 - Check HO2S Wire to PCM For Open No -- Service the HO2S GND wire.