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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 678 (HVAC Control System - General Information - Excursion & F250-F550 Super Duty) >> Diagnosis And Testing >> Climate Control System >> Inspection and Verification

Inspection and Verification

WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, 2004 Ford Excursion, and 2004 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the customer concern by operating the climate control system to duplicate the condition.
  2. Visually inspect for obvious signs of mechanical or electrical damage.
    Fig 1: Visual Inspection Chart
    G02777125Courtesy of FORD MOTOR CO.
  3. As pinpoint tests and measurements are being performed, be sure to inspect for any disconnected, loose fitting, or incorrectly installed component, module and in-line electrical connectors and pins.
  4. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  5. If the cause is not visually evident, connect a scan tool to the data link connector and select the vehicle to be tested from the scan tool menu. If the scan tool does not communicate with the vehicle:
    • check that the program card is correctly installed.
    • check the connections to the vehicle.
    • check the ignition switch position.
  6. If the scan tool still does not communicate with the vehicle, refer to the scan tool operating manual.
  7. Carry out the DATA LINK DIAGNOSTICS test. If the scan tool responds with:
    • SCP+, SCP-, or UBP CIRCUITS FAULT = ALL ECUS NO RESP/NOT EQUIP, refer to MODULE COMMUNICATIONS NETWORK to diagnose the network concern.
    • If the powertrain control module (PCM) is not listed for a communication concern, turn the A/C controls to OFF and execute the self-test diagnostics for the PCM.
    • If the EATC module is not listed for a communication concern, execute self-test diagnostics for the EATC module.
  8. If any PCM or EATC DTCs are retrieved, and are related to the concern, go to the Powertrain Control Module Diagnostic Trouble Code (DTC) Index or the Electronic Automatic Temperature Control (EATC) Module Diagnostic Trouble Code (DTC) Index to continue diagnostics.
  9. If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART  to continue diagnostics.
  10. If the EATC module cannot be accessed by the scan tool, Go To PINPOINT TEST F: THE EATC SYSTEM IS INOPERATIVE, INTERMITTENT OR INCORRECT OPERATION .
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