No power to Obd2?

2001 CADILLAC DEVILLE
170,000 MILES
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ROCKY VIGIL
  • MEMBER
  • 1 POST
No power for diagnostics. No dash lights no crank.
Sep 23, 2023 at 4:39 AM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
How is the battery? I would check the battery and connections first to confirm the system has 12 volts.

These guides can help:

https://www.2carpros.com/articles/car-battery-load-test

and

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

Please go over these guides and get back to us.
Sep 23, 2023 at 12:23 PM
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