FixVault

Fuel Pump Operation Inspection

  1. Remove the fuel-filler cap.
  2. Turn the ignition switch to the ON position.
  3. Turn the fuel pump relay from off to on using the FP PID and inspect if the operation sound is heard.
    • If no operation sounds is heard, proceed to next step.
  4. Measure voltage at wiring harness side fuel pump connector terminal B

    Specification 

    • B+ (Ignition at on)
    • If the voltage is as specified, inspect the following:
      • Fuel pump continuity
      • Fuel pump GND
      • Wiring harness between fuel pump relay terminal 2 and PCM terminal 1BG
    • If not as specified, inspect the following:
      • Fuel pump relay (See RELAY INSPECTION [L5] .)
      • Wiring harness connector (Main relay-Fuel pump relay-Fuel pump)