toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Main Relay (Computer/Fuel System) > < Fuel Pump Relay|Locations
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Fuel Pump Relay: Testing and Inspection

INSPECTION 

1. REMOVE RELAY BOX COVER

2. REMOVE CIRCUIT OPENING RELAY

(Marking: CIR OPN)

3. INSPECT CIRCUIT OPENING 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 no continuity between terminals 3 and 5.

If there is continuity, replace the relay.

4. INSPECT CIRCUIT OPENING RELAY OPERATION

(a) Apply battery positive voltage across terminals 1 and 2.
(b) Using an ohmmeter, check that there is continuity between terminals 3 and 5.

If there is no continuity, replace the relay.

5. REINSTALL CIRCUIT OPENING RELAY
6. REINSTALL RELAY BOX COVER

Main Relay (Computer/Fuel System) > < Fuel Pump Relay|Locations