Fuel Pump Operation Inspection

Connect the M-MDS to the DLC-2.
Remove the fuel-filler cap.
Switch the ignition to ON.
Turn the fuel pump relay from off to on using the FP PID and inspect if the operation sound is heard. (See ON-BOARD DIAGNOSTIC TEST .)
- If no operation sounds is heard, proceed to next step.
Measure the voltage at the fuel pump terminal B (wiring harness-side).
Specification
- B+ (Ignition switch is ON position)
- If the voltage is as specified, inspect the following:
  - Fuel pump continuity
  - Fuel pump ground
  - Wiring harness between fuel pump relay and PCM terminal 1AQ
- If not as specified, inspect the following:
  - Fuel pump relay (See RELAY INSPECTION .)
  - Wiring harness and connector (Main relay-Fuel pump relay-Fuel pump)