Inspection and Verification

WARNING: This page is about a different car, the 2005 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

Verify the customer's concern by operating the climate control system to duplicate the condition.

Inspect to determine if one of the following mechanical or electrical concerns apply:

VISUAL INSPECTION CHART

Mechanical	Electrical
Loose, missing or damaged A/C compressor drive belt Loose or disconnected A/C clutch Broken or binding door/actuator Broken or leaking refrigerant lines	Open fuses Blower motor inoperative A/C compressor inoperative Circuitry open/shorted Disconnected electrical connectors Cooling fan inoperative

As pinpoint tests and measurements are being carried out, be sure to inspect for any disconnected, loose-fitting, or incorrectly installed components, module and in-line electrical connectors and pins.
If the inspection reveals obvious concern(s) that can be readily identified, repair as required.
If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument floor/panel and select the vehicle to be tested from the diagnostic tool menu. If the vehicle selection cannot be entered:
- check that the program card is correctly installed.
- check the connections to the vehicle.
- check the ignition switch position.
If the diagnostic tool still does not allow the vehicle selection to be entered, refer to the diagnostic tool manual.
Carry out the DATA LINK DIAGNOSTIC TEST using the diagnostic tool. If the diagnostic tool responds with:
- SCP+, SCP- or UBP circuits fault = ALL MODULE NO RESPONSE/NOT EQUIPPED, go to MODULE COMMUNICATION NETWORK Diagnostics 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.