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)

Or, hide this message: temporarily or permanently

Radiator Cooling Fan Temperature Sensor / Switch

No.1 ECT Switch
Below 88°C (190°F) Continuity Between The Terminals
Above 98°C (208°F) No Continuity Between The Terminals


No.2 ECT Switch
Below 83°C (181°F) No Continuity Between The Terminals
Above 94°C (201°F) Continuity Between The Terminals