Fuel Pump Operation Inspection

CAUTION:

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

Short the check connector terminal F/P to body GND using a jumper wire.
Remove the fuel-filler cap.
Turn the ignition switch to ON position.
Verify that the fuel pump operation sound is heard.
- If no operation sound heard, proceed to next step.
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 95^*1 , 4Q^*2
- If not as specified, inspect the following:
  - Fuel pump relay
  - Wiring harness connector (Main relay - fuel pump relay - fuel pump.)

*1: California emission regulation applicable ATX model

*2: Except for California emission regulation applicable ATX model