Fuel Shut-off Solenoid Relay: Testing and Inspection

This test assumes vehicle does not run. If vehicle runs, refer to FUEL PRESSURE TEST for further testing.

Fig. 3 Fuel Cut-Off Relay Location:

1. With ignition off, remove underdash cover and pull down the fuse box/relay panel.

Fuel Cut-Off Relay Socket Identification:

2. Remove fuel cut-off relay.
3. Check for continuity between socket terminal 3 and ground.

Expected result:
Approx. O ohms. If OK, continue. If not a wiring related fault is indicated. Refer to CHASSIS ELECTRICAL DIAGRAMS for additional information.


4. Check for voltage between socket terminals 2 & 3 with ignition switch on.

Expected result:
Battery voltage. If OK, continue. If not a wiring related fault is indicated. Refer to CHASSIS ELECTRICAL DIAGRAMS for additional information.

5. Check for voltage between socket terminals 3 & 4 with ignition switch on.

Expected result:
Battery voltage. If OK, continue. If not a wiring related fault is indicated. Refer to CHASSIS ELECTRICAL DIAGRAMS for additional information.

6. With ignition off insert a jumper wire between socket terminals 1 & 2. Turn ignition on.

Expected result:
Fuel pump should run, if not refer to COMPONENT TESTING PROCEDURES for fuel pump testing procedures.


This test verifies circuit operation, if desired results are achieved fuel cut-off relay is defective and should be replaced.