Tacoma PreRunner Dbl Cab 2WD V6-3.4L (5VZ-FE) (2001)
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Fuel Pump Relay: Testing and Inspection
CIRCUIT OPENING RELAY
INSPECTION
1. REMOVE CIRCUIT OPENING RELAY
2. INSPECT CIRCUIT OPENING RELAY
a. Inspect the relay continuity.
1. Using an ohmmeter, check that there is no continuity between terminals 1 and 2.
If there is continuity, replace the relay.
2. Check that there is continuity between terminals 2 and 4.
If there is no continuity, replace the relay.
3. Check that there is continuity between terminals 3 and 5.
If there is no continuity, replace the relay.
b. Inspect the relay operation.
1. Apply battery positive voltage across terminals 3 and 5.
2. Using an ohmmeter, check that there is continuity between terminals 1 and 2.
If there is no continuity, replace the relay.
3. Apply battery positive voltage across terminals 2 and 4.
4. Using an ohmmeter, check that there is continuity between terminals 1 and 2.
