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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Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection

CIRCUIT DIAGRAM

USING SCAN TOOL

HARNESS INSPECTION PROCEDURES

TROUBLESHOOTING HINTS
Coolant temperature sensor problems can cause the engine to be hard to start, driveability may become poor, and idling may be unstable during cold operation.