Fuel Pump Operation Inspection

Fuel Pump Operation Inspection

CAUTION: Connecting the wrong check connector terminal may possibly cause malfunction. Carefully connect the specified terminal only.

1. Short the check connector terminal F/P to body GND using a jumper wire.
2. Remove the fuel-filler cap.
3. Turn the ignition switch to ON position.
4. Verify that the fuel pump operation sound is heard.
- If no operation sound heard, proceed to next step.

5. Measure voltage at harness side fuel pump connector terminal B.

Specification: B+ (Ignition switch at on)

- If the voltage is as specified, inspect the following:
- Fuel pump continuity
- Fuel pump GND
- Wiring harness between fuel pump relay and PCM terminal 4P

- If not as specified, inspect the following:
- Fuel pump relay
- Wiring harness connector (Main relay - fuel pump relay - fuel pump.)