Will not start after replacing the battery

2003 CADILLAC CTS
150,000 MILES • 3.2L • 6 CYL • 2WD • AUTOMATIC
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JONELLE SEDILLO
  • MEMBER
  • 2 POSTS
I recently changed the battery and after i changed the battery it won’t start. all the lights radio everything comes on normal but car won’t start and key gets locked in the ignition. but if i hook up the scanner reader and hit the button to clear codes it will then start.. i have a viper aftermarket alarm also.. i’m stumped. please help.
Oct 11, 2020 at 5:57 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

When you connector the scan tool, is there a code before you hit the clear codes option?

The idea that the key won't come out is interesting. Does the gear indicator light show park and all other gears? Also, I want you to check the ignition switch fuse. It is under the hood. I attached a pic to help you find it. In addition to checking the fuse, confirm there is power to it.

Here is a link that you may find helpful:

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

Check that fuse and let me know what you find. Also, let me know if the starter is engaging when this happens.

Take care,
Joe

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Oct 13, 2020 at 10:00 AM
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