Supra L6-3.0L DOHC Turbo (7M-GTE) (1987)
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EFI Main Relay: Testing and Inspection
Component Test
INSPECTION OF ELECTRONIC FUEL INJECTION (EFI) MAIN RELAY
1. CHECK OPERATION OF MAIN RELAY.
Turn the ignition switch "ON". At this time an operation noise will occur from the relay.
2. INSPECT RELAY CONTINUITY.
a. Check that there is continuity between terminals 1 and 3.
b. Check that there is no continuity between terminals 2 and 4.
If continuity is not as specified, replace the relay.
3. INSPECT RELAY OPERATION.
a. Apply battery voltage across terminals 1 and 3.
b. Check that there is continuity between terminals 2 and 4.
