Replaced alternator and no start with key

2007 CADILLAC CTS

150,235 MILES • 3.6L • 6 CYL • 2WD • AUTOMATIC

STNPTE68

MEMBER
1 POST

I can get it to turn over with a wire on the purple wire and to the positive but with the key it is not doing anything.

Aug 26, 2019 at 9:45 AM

JACOBANDNICKOLAS

✓Experienced Mechanic
110,240 POSTS

Welcome to 2CarPros.

Have you checked the starter fuse as well as the starter relay? They are both located in the under hood fuse / relay box. I attached a picture below showing which ones to check.

Here are a few links you may find helpful:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

https://www.2carpros.com/articles/how-a-car-fuse-works

https://www.2carpros.com/articles/how-to-check-a-car-fuse

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

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Let me know what you find.

Joe

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Aug 28, 2019 at 10:26 AM

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