Using WDS or equivalent
WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
- Connect the WDS or equivalent to the DLC-2.
- Remove the fuel filler cap.
- Turn the ignition switch to the ON position.
- Verify that the fuel pump can be heard operating when FP is changed from off to on position using simulation function FP.
Courtesy of MAZDA MOTORS CORP.
- If it cannot be verified, inspect for a voltage of 3.76-5.28 V
on the fuel pump wiring harness-side connector terminal B.
- If it is within the specification, inspect the following.
- Fuel pump continuity inspection
- Wiring harness between fuel pump terminal D and GND
- If not within the specification, inspect the following.
- Fuel pump relay
- Wiring harnesses, connectors between fuel pump relay, fuel pump resistor, and fuel pump
- Wiring harnesses, connectors between main relay, fuel pump relay, and PCM
- If it is within the specification, inspect the following.
Voltage
- 3.76-5.28 V
- If it cannot be verified, inspect for a voltage of 3.76-5.28 V
on the fuel pump wiring harness-side connector terminal B.