Security light stays on and I cannot start the car?

Tiny
SALSAFUN458
  • MEMBER
  • 2002 CHEVROLET TRAILBLAZER
  • 20,000 MILES
Can I remove the pass lock chip in the PCM for a 2003 Chevy trailblazer?
Tuesday, June 20th, 2023 AT 12:54 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

No, that isn't possible. We need to figure out why it is staying on. Try this and let me know the results.

Turn the key to the run position and allow it to stay on for approximately 10 minutes. The security light should turn off. See if the vehicle starts. If it does, we are going to perform a 30-minute relearn. See attached below.

Let me know what you find.

Joe

See pic below.
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Tuesday, June 20th, 2023 AT 10:58 PM

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