Efi Main Relay - Toyota Land Cruiser 1988 Repair Manual

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Battery
Continuity
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EFI SYSTEM- Electronic Control System
EFI Main Relay
ECU
EFI Main Relay
Fusible Link
Fuse
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MAIN 0.85R EFI 15A
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INSPECTION OF 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.