Q45t V8-4130cc 4.1L DOHC MFI (VH41) (1997)
Fuel Pump Control Module: Testing and Inspection
COMPONENT INSPECTION
FPCM
With Consult
1. Start engine and let it idle,
2. Perform "FPCM" in "ACTIVE TEST" mode with CONSULT.
3. Check the following.
-
When selecting "HI", "FPCM DR VOLT" indicates approximately 0 V.
-
When selecting "LOW", "FPCM DR VOLT" indicates approximately 4.4 V.
4. If NG, replace FPCM.
OR
Without Consult
1. Start engine and warm it up sufficiently.
2. Turn ignition switch "OFF" and wait at least 5 seconds.
3. Start engine and let it idle.
4. Check voltage between terminals (1) and (2).
Within 30 seconds of starting engine:
Approximately 0V
More than 30 seconds after starting engine:
Approximately 4.4V
5. If NG, replace FPCM.