Sequoia LTD 4WD V8-4.7L (2UZ-FE) (2001)
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Fuel Pump Relay: Testing and Inspection
Fuel Pump Relay
INSPECTION
1. REMOVE RELAY BOX COVER
2. REMOVE FUEL PUMP RELAY (Marking: F/P)
3. INSPECT FUEL PUMP RELAY CONTINUITY
a. Using an ohmmeter, check that there is continuity between terminals 1 and 2.
If there is no continuity, replace the relay.
b. Check that there is continuity between terminals 3 and 4.
If there is no continuity, replace the relay.
4. INSPECT FUEL PUMP RELAY OPERATION
a. Apply battery positive voltage across terminals 1 and 2.
b. Using an ohmmeter, check that there is no continuity between terminals 3 and 4.
If there is continuity, replace the relay.
5. REINSTALL FUEL PUMP RELAY
6. REINSTALL RELAY BOX COVER
