Landcruiser 4WD L6-4.5L (1FZ-FE) (1993)
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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.