1994 PCED OBDI-A | SECTION 6A: EEC-IV Pinpoint Test Procedures |
DS: Programmable Speedometer/Odometer Module (PSOM) Introduction | DS: Pinpoint Tests |
You should enter this Pinpoint Test only when you have been directed here from Diagnostic Routines, Section 2A.
To prevent the replacement of good components, the following non-EEC areas may be at fault:
This Pinpoint Test is intended to diagnose the following
The Programmable Speedometer/Odometer Module (PSOM) receives input from the Rear Anti-Lock Brake Sensor (RABS) mounted on the rear axle differential. The PSOM sends this input signal information to the Speed Control module and the Powertrain Control Module (PCM).


| DS: Pinpoint Tests |