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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temporarily or
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Coolant Temperature Switch
Coolant Temperature Switch Circuit (A/C Only):
The Coolant Temperature Switch, located in the thermostat housing, is a contact type switch. It is normally in the closed position allowing current flow. When the engine coolant temperature is 233 - 244° F (112 - 118° C) the switch will open cutting power to the ECM, and helping to prevent engine overheating.
