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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ECT (Engine Coolant Temperature) Sensor Inspection




ECT (Engine Coolant Temperature) Sensor Inspection

ECT (Engine Coolant Temperature) Sensor Removal and Installation

Check that resistance between terminals "1" and "2" varies depending on engine coolant temperature.

If faulty condition is found, replace ECT sensor (1).