Diagnostic Aids

WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2002 Lincoln Town Car, 2002 Lincoln Navigator, 2002 Lincoln LS, 2002 Lincoln Continental, and 2002 Lincoln Blackwood. However, it is still accessible from the selected car via links, so may be relevant.

Perform this test when instructed during QUICK TEST or if directed by other test procedures. This test is used to diagnose the following:

Wiring Harness Circuits (B+, GND & VPWR To Fuel Pump Relay; FP, FPM, FP PWR, FP RTN & FPDM PWR). See Fig 1-Fig 5 .
Faulty Inertia Fuel Shutoff (IFS) Switch
Faulty Fuel Pump Driver Module (FPDM)
Faulty Power Supply Relay Inside Constant Control Relay Module (CCRM)
Faulty Powertrain Control Module (PCM)

Fig 1: Identifying Fuel Pump Driver Module Circuits & Connector Terminals (Continental)

Courtesy of FORD MOTOR CO.

Fig 2: Identifying Fuel Pump Driver Module Circuits & Connector Terminals (Cougar, Focus, Sable & Taurus)

Courtesy of FORD MOTOR CO.

Fig 3: Identifying Fuel Pump Driver Module Circuits & Connector Terminals (Escort)

Courtesy of FORD MOTOR CO.

Fig 4: Identifying Fuel Pump & Rear Electronics Module Circuits & Connector Terminals (LS & Thunderbird)

Courtesy of FORD MOTOR CO.

Fig 5: Identifying Fuel Pump Driver Module Circuits & Connector Terminals (Mustang)

Courtesy of FORD MOTOR CO.