Operation CHARM: Car repair manuals for everyone.
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)

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Harness Inspection


1. Disconnect control unit electrical connector.
2. Connect ohmmeter between terminal 5 and 13 of electrical connector and check for reading of 2500 ohms with sensor at temperature of 68°F (20°C), or 325 ohms with sensor at temperature of 176°F (80°C).