toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

EFI Main Relay <--> [Main Relay (Computer/Fuel System)] > < Circuit Opening Relay <--> [Fuel Pump Relay]|Locations
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Circuit Opening 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 86 and 85.

If there is no continuity. replace the relay.

(b) Check that there is no continuity between terminals 87 and 30.

If there is continuity, replace the relay.

B. Inspect relay operation

(a) Apply battery voltage across terminals 86 and 85.
(b) Using an ohmmeter, check that there is continuity between terminals 87 and 30.

If there is no continuity, replace the relay.

3. Reinstall circuit opening relay

EFI Main Relay <--> [Main Relay (Computer/Fuel System)] > < Circuit Opening Relay <--> [Fuel Pump Relay]|Locations