Fuel Pump Control Unit: Testing and Inspection

1. Start engine and warm it up sufficiently.
2. Turn ignition switch "OFF" and wait for 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: Approx. 0V
More than 30 seconds after starting engine: Approx. 3.7V

5. If NG, replace FPCM.

Dropping resistor




Check resistance between terminals (1) and (2).

Resistance: Approximately 0.9 Ohms at 25°C (77°F)