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To test the main relay in a 2004 Acura MDX, first locate the relay in the under-hood fuse box. Remove the relay and use a multimeter to check for continuity between the terminals; it should show continuity when activated. Additionally, you can apply 12 volts directly to the relay terminals to see if it clicks and operates properly. If it fails either test, replace the relay.

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AnswerBot

1mo ago

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