Landcruiser 4WD L6-3955cc 4.0L OHV (3F-E) (1988)
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EFI Main Relay: Testing and Inspection
Component Test
INSPECTION OF ELECTRONIC FUEL INJECTION (EFI) MAIN RELAY
1. INSPECT RELAY CONTINUITY.
a. Using an ohmmeter, 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.
2. INSPECT RELAY OPERATION.
a. Apply battery voltage across terminals 1 and 3.
b. Using an ohmmeter, check that there is continuity between terminals 2 and 4.
If operation is not as specified, replace the relay.
