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2002 Chevy Monte Carlo unhooked battery wont start

Tiny
IHCCCARGUY
  • MEMBER
  • 2002 CHEVROLET MONTE CARLO
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 85,000 MILES
I put a different battery in my car got in to start turned the key nothing asked my instructor he told me to unhook neg cable hook it back up wait 15 min. Try to start it same thing nothing then my instructor told me to unhook both neg. And pos. Cables then touch them together and wait 10 min. Hook pos. And neg. Back up try to start right after that same thing nothing asked my instructor again didnt know thats why Iam here any suggestions thanks Jerry
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Saturday, October 25th, 2008 AT 10:10 PM

1 Reply

Tiny
RENAUDTN
  • MECHANIC
  • 636 POSTS
Is your security light blinking?
If so, try this GM passlock relearn procedure:

1: Turn your key like you're gonna start the car and let the key go back to 'run';
2: wait for about 10 minutes until 'security' goes off.
3: Turn your key to off, wait 5 seconds

Start at step 1 again and go thru the procedure for an additional two times (three relearns total).

At the end of the third time, turn your key to off for 5 seconds and then turn on your car.

If it doesn't help, you may need to have your car checked at a GM dealer. When you unhooked the battery, did you have a memory saver plugged in?
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Monday, October 27th, 2008 AT 10:01 AM

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