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Home >> Ford >> 2004 >> Excursion 5.4 L, 4WD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Pinpoint Test KE: Idle Air Control (IAC) Valve Through Pinpoint Test QA: Unable To Activate Self-Test/Network Communication Error/DTC P1001 - CNG, Flex-Fuel & Gasoline >> Pinpoint Test KM: Air conditioning clutch relay circuit >> Introduction >> Notes
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Pinpoint Test KM: Air conditioning clutch relay circuit: Introduction: Notes

NOTE: This pinpoint test is intended to diagnose the following:
  • Harness Circuits: VPWR, A/CC, A/CCS.
  • A/CC RELAY.
  • PCM (12A650).
Fig 1: Identifying Air Conditioning Clutch (A/CC) Relay Connector
G03626757Courtesy of FORD MOTOR CO.

The VPWR & A/CCR circuits may be reversed in the harness connector. REFER to the appropriate SYSTEM WIRING DIAGRAMS article for more information.

Fig 2: Identifying Air Conditioning Clutch (A/CC) Assembly Connector
G03626758Courtesy of FORD MOTOR CO.