toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

EFI Main Relay <--> [Main Relay (Computer/Fuel System)] > < Engine Control Module|Locations|Page 2150
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Turn the ignition switch to LOCK.

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Disconnect the 4 connectors from the engine control module.

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Measure the resistance between each terminal of the wiring connectors.

NOTE:  Do not touch the engine control module terminals. The tester probe should be inserted in the wiring connector from the wiring side.

EFI Main Relay <--> [Main Relay (Computer/Fuel System)] > < Engine Control Module|Locations|Page 2150