T100 Regular Cab Pickup 2WD V6-3.4L (5VZ-FE) (1997)
Fuel Pump Relay: Testing and Inspection
CIRCUIT OPENING RELAY INSPECTION
1. REMOVE CIRCUIT OPENING RELAY
2. INSPECT CIRCUIT OPENING RELAY
A. Inspect relay continuity
(a) Using an ohmmeter, check that there is continuity between terminals ST and E1.
If there is no continuity, replace the relay.
(b) Check that there is continuity between terminals +B and FC.
If there is no continuity, replace the relay.
(c) Check that there is no continuity between terminals +B and FP.
If there is continuity, replace the relay.
B. Inspect relay operation
(a) Apply battery positive voltage across terminals ST and E1.
(b) Using an ohmmeter. check that there is continuity between terminals +B and FP.
If there is no continuity, replace the relay.
3. REINSTALL CIRCUIT OPENING RELAY