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Home >> Mercury >> 1994 >> Cougar 4.6 W, AODE-W >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation - EEC-V 4.6L >> Computerized Engine Controls >> Control Unit >> Constant Control Relay Module (CCRM)

Constant Control Relay Module (CCRM)

CCRM interfaces with the PCM to control cooling fan, A/C clutch and fuel pump operation. The CCRM also incorporates electronic engine control power relay to supply power to the EEC-IV system.

NOTE: Components are grouped into 2 categories. The first category covers INPUT DEVICES, which control or produce voltage signals monitored by the control unit. The second category covers OUTPUT SIGNALS, which are components controlled by the control unit.
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