Transfer Fuel Pump Test

Transfer Fuel Pump Test

Special Tools Required

- Vacuum Pump/Gauge, 0-30 inHg Snap-on YA4000A or equivalent, commercially available

With SH-AWD

1. Remove the secondary fuel gauge sending unit.

2. Connect a vacuum pump/gauge, 0-30 inHg, to the transfer tube (A).





3. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

4. From the INSPECTION MENU of the HDS, select Fuel Pump ON.

5. Read the vacuum pump/gauge. The vacuum should be 4.0 kPa (1.2 inHg, 30 mmHg).

- If the vacuum is OK, the transfer fuel pump and the transfer tube is OK.
- If the vacuum is out of specification, go to step 6.

6. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

7. Install the secondary fuel gauge sending unit.

8. Remove the fuel tank unit Fuel Tank Unit Removal/Installation.

9. Connect the vacuum pump/gauge, to the fuel tank unit (A).






10. Lower the fuel tank unit (A) into the fuel tank until the pick up screen is submerged in the fuel.





11. Connect the fuel tank unit 4P connector (B).

12. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

13. From the INSPECTION MENU of the HDS, select Fuel Pump ON.

14. Read the vacuum pump/gauge. The vacuum should be 4.0 kPa (1.2 inHg, 30 mmHg).

- If the vacuum is OK, replace the transfer tube, then recheck the fuel vacuum.
- If the vacuum is out of specification, replace the fuel tank unit Fuel Tank Unit Removal/Installation, then recheck the fuel vacuum.