Diagnostic Aids

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Ford RV Cutaway, 2002 Ford Pickup, 2002 Ford F550 Super Duty, 2002 Ford F450 Super Duty, and 2002 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.

Perform this test when directed by QUICK TEST. This test is only intended to diagnose the following components and circuits:

A/C Wiring Harness Circuits
A/C Clutch
Powertrain Control Module (PCM)

Fig 1: Identifying A/C Pressure Switch Circuits (Econoline & F650-750)

Courtesy of FORD MOTOR CO.

Fig 2: Identifying A/C Pressure Switch Circuits (Excursion With EATC)

Courtesy of FORD MOTOR CO.

Fig 3: Identifying A/C Pressure Switch Circuits (Excursion & F250-550 W/O EATC)

Courtesy of FORD MOTOR CO.