lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Relays and Modules - Fuel Delivery and Air Induction > < Main Relay (Computer/Fuel System)|Locations
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Main Relay (Computer/Fuel System): Testing and Inspection

INSPECTION

1. Remove engine main relay. (Marking: engine main)

2. Inspect relay continuity.

(a) Check that there is continuity between terminals 1 and 2.

If there is no continuity, replace the relay.

(b) Check that there is no continuity between terminals 3 and 5.

If there is continuity, replace the relay.

3. Inspect relay operation.

(a) Apply battery voltage across terminals 1 and 2.
(b) Using an ohmmeter, check that there is continuity between terminals 3 and 5.

If there is no continuity, replace the relay.

4. Reinstall engine main relay.

Relays and Modules - Fuel Delivery and Air Induction > < Main Relay (Computer/Fuel System)|Locations