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Georgia tice
Georgia tice Posted on Feb 08, 2017
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I replaced the TCM in my 2005 Chevy colbolt, light come on but car won't start, turn key and anti theft icon comes on but doesn't stay on

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Jeff Armer

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  • Chevrolet Master 15,575 Answers
  • Posted on Feb 08, 2017
Jeff Armer
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TCM ? transmission control module ? Did you have it programmed ? Reprogram the TCM. Refer to Control Module References for programming and setup information.
Transmission Control Module Programming and Setup
The transmission control module (TCM) must be programmed with the proper software/calibrations. Ensure that the following conditions exist in order to prepare for TCM programming:
• The battery is fully charged.
• The ignition switch is in the RUN position.
• The Techline equipment cable connection at the data link connector (DLC) is secure.
Program the TCM using the latest software matching the vehicle. Refer to up-to-date Techline equipment user instructions.
If the TCM fails to program, proceed as follows:
3.1. Ensure that the TCM connection is OK.
3.2. Inspect the Techline equipment for the latest software version.
3.3. Attempt to program the TCM. If the TCM still cannot be programmed properly, replace the TCM.

5 Related Answers

A

Anonymous

  • Posted on Jul 13, 2008

SOURCE: car starting probs

u need a new key the Senty key Immobilizer module has not recognized a signal from the key during engine startup and means that the Skim anti-theft system has locked the engine down.

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Anonymous

  • 4 Answers
  • Posted on Feb 12, 2009

SOURCE: Chevy Tahoe 2004 Anti Theft Device has been activated.

leave the key on for about 5 to10 min then try to start. Are reset to computer by leaving the key on for 10 min and try to start the vehical.Do this procese 3 time then it shold reset

Anonymous

  • 31 Answers
  • Posted on Mar 27, 2009

SOURCE: 97 Chevy Monte Carlo won't start, security light is on

disconnect battery for 24 hrs so the computer will reset and if that dont work take it to chevy dealer and have them reset it manually

Anonymous

  • 1 Answer
  • Posted on Aug 21, 2009

SOURCE: 99 chevy cavalier theft system light on steady, car wont crank.

My 2000 cavalier has done this for 6 months. You take your key out then open your door, wait ten minutes and the system resets itself and the car will start-annoying you bet!!!

Anonymous

  • 3640 Answers
  • Posted on Sep 11, 2010

SOURCE: anti theft light

to reset theft system--turn key to on, leave for about 15 minutes. after 15 min. turn key off, wait 15 seconds. then try to start car. to bypass anti theft system-- all gms===go to site- newrockies.ca/vatsbypass.

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