Fuel Pump Unit Inspection
Simulation Test1. Carry out the "Fuel Pump Operation Inspection", "Fuel Pump Control Inspection".
(Refer to Fuel Pump Operation Inspection.)
Fuel Pump Operation Inspection
(Refer to Fuel Pump Control Inspection.)
Fuel Pump Control Inspection
- If not as specified, perform the further inspection for the fuel pump unit.
Continuity Inspection
NOTE: Perform the following test only when directed.
1. Disconnect the negative battery cable.
2. Remove the rear seat cushion.
3. Remove the service hole cover.
4. Disconnect the fuel pump unit connector.
5. Inspect for continuity between fuel pump unit connector terminals B and D.
- If there is no continuity, replace the fuel pump body.
- If as specified but the "Simulation Test" is failed, inspect the fuel pump relay for the following:
Open circuit
- Ground circuit (fuel pump unit connector terminal D and body Ground)
- Power circuit (fuel pump relay connector terminal C and fuel pump unit connector terminal B through common connector)
Short circuit
- Fuel pump relay connector terminal C and fuel pump unit connector terminal B through common connector to Ground
6. Repair or replace faulty areas.
7. Reconnect the fuel pump unit connector.
8. Install the service hole cover.
9. Install the rear seat cushion.
10. Reconnect the negative battery cable.