Tests KF: Fan Control (FC) Relays
PINPOINT TEST KF: FAN CONTROL (FC) RELAYS
This pinpoint test is intended to diagnose the following:
^ LFC MFC HFC relays
^ harness circuits: HFC LFC MFC VPWR
^ powertrain control module (PCM) (12A650)
Three Speed Fan Operation
Although the PCM output circuits are called low, medium and high fan control (FC), cooling fan operation is controlled by a combination of these outputs.
Refer to Engine Control Components
Reference:
Reference:
HFC Relay Connector
Reference:
KF1 - KF2:
KF3 - KF4:
KF5 - KF6:
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KF9 - KF10:
KF11 - KF12:
KF13 - KF14:
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KF21 - KF22:
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KF25 - KF26:
KF27 - KF28:
KF29 - KF30:
KF31 - KF32:
KF33 - KF34:
KF35 - KF36:
KF37 - KF38:
KF39 - KF40:
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KF45:
KF46:
KF47:
KF48:
KF49:
KF50:
KF51:
KF52:
KF53:
KF54:
KF55:
KF56 - KF57:
KF58 - KF60:
KF61 - KF63:
KF64 - KF65:
KF66 - KF67:
