Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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STRAILER
CAR REPAIR CONTRIBUTOR
54,189 POSTS
So the power and ground comes from the ECCS (ECM) so I would check the fuses which I have included in the images below and I have included the wiring daigrams as well. This guide should help.