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:
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lemon-manuals.org.ua
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Radiator Cooling Fan Control Module: Testing and Inspection
INSPECTION USING AN OSCILLOSCOPE (REFERENCE)Cooling fan control signalsPCM terminals -
1W(+) - 1AA(-)
Oscilloscope setting -
5 V/DIV (Y),
1 ms/DIV (X), DC range
Vehicle condition -
Idle after warm up (engine speed approx.
700 rpm, A/C ON)
