Pinpoint Test J: Programmable Speedometer/Odometer Module: Description
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 1996 Ford RV Cutaway, 1996 Ford Pickup, 1996 Ford F-Super Duty, 1996 Ford Econoline, and 1996 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
PSOM receives input from Rear Anti-Lock Brake System (RABS) sensor, which is mounted on rear differential. PSOM sends this input signal information to PCM. DTC 0500 indicates Vehicle Speed Sensor (VSS) malfunction.
Perform this test when directed here by QUICK TEST. This PINPOINT TEST is intended to diagnose:
- PSOM output to PCM.
- PSOM (+) and PSOM (-) wiring harness circuits.
- Powertrain Control Module (PCM).
To prevent replacement of good components, be aware following non-EEC related areas and components may be cause of problem:
- Cruise control system.
- Fault in RABS.
- Ring gear inside differential.
- Instrumentation system.