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 directed by QUICK TEST. This system test is intended to diagnose:

Vehicle Speed Sensor (VSS)
Transfer Case Speed Sensor (TCSS)
VSS Wiring Harness Circuits (VSS+ & VSS-)
Wiring Harness Circuits (TCSS & SIG RTN)
Powertrain Control Module (PCM)

Fig 1: Identifying TCSS Circuits & Connector Terminals (Escape 2.0L - M/T)

Courtesy of FORD MOTOR CO.

Fig 2: Identifying VSS Circuits & Connector Terminals (All Others)

Courtesy of FORD MOTOR CO.