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. (See AFTER REPAIR PROCEDURE.)
2. Remove the fuel-filler cap.
3. Turn ignition switch to ON position.
4. Verify that the fuel pump operation sound is heard.
- If no operation sound is heard, proceed to next step.

5. Measure the 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 104

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