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 PCM PID FP 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 (wiring harness-side).

    Specification 

    • B+ (Ignition switch at on) 
    • If the voltage is as specified, inspect the following:
      • Fuel pump continuity
      • Fuel pump GND
    • If not as specified, inspect the following:
      • Fuel pump relay (See RELAY INSPECTION article.)
      • Wiring harness connector (Battery positive terminal-Fuel pump relay-Fuel pump)
      • Wiring harness between fuel pump relay and PCM terminal 1BI