4 Runner 2WD V6-180.5 2959cc 3.0L SOHC (3VZ-E) (1992)
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EFI Main Relay: Testing and Inspection
1. Unplug the EFI Main Relay from the fuse panel.
2. Using an Ohmmeter, check for continuity between terminals 1 and 2.
EFI Relay Resistance Test
3. Check that there is NO continuity between terminals 3 and 5 or terminals 2 and 5.
4. If not as specified, replace the EFI Main Relay.
5. Apply battery current across terminals 1 and 2.
EFI Relay Operation Test
6. Using an Ohmmeter, check for continuity between terminals 3 and 5.
7. If operation is not as specified, replace the EFI Main Relay.
8. Remove the battery leads and reinstall the relay.
NOTE: Refer to COMPUTERIZED ENGINE CONTROLS for circuit test of the EFI Main Relay.
