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
Page 1
background image

Circuit Opening Relay: Testing and Inspection

1. REMOVE GLOVE COMPARTMENT DOOR.
2. REMOVE CIRCUIT OPENING RELAY.
3. INSPECT CIRCUIT OPENING RELAY.

A. Inspect relay continuity.

-

Using an ohmmeter, check that there is continuity between terminals STA and E1.

-

Check that there is continuity between terminals +B and FC.

-

Check that there is no continuity between terminals + B and FP.
If continuity is not as specified, replace the relay.

B. Inspect relay operation.

-

Apply battery voltage across terminals STA and E1.

-

Using an ohmmeter. check that there is continuity between terminals +B and FP.
If operation is not as specified, replace the relay.

4. REINSTALL CIRCUIT OPENING RELAY.
5. REINSTALL GLOVE COMPARTMENT DOOR.

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