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

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Radiator Fan Switch Test

Radiator Fan Switch Test

NOTE: Bleed air from the cooling system after installing the radiator fen switch.

1. Remove the radiator fan switch from the thermostat cover.





2. Suspend the radiator fan switch (A) in a container of water as shown.
3. Heat the water and check the temperature with a thermometer. Do not let the thermometer (B) touch the bottom of the hot container.





4. Measure the continuity between the A terminal (C) and B terminal (D) according to the table.