After replacing the ECM and steering column, Engine will not crank?

Tiny
DIESELGURL23
  • MEMBER
  • 2004 CHEVROLET TRAILBLAZER
  • V6
  • 4WD
  • AUTOMATIC
  • 250,137 MILES
I bought this vehicle. Said the computer was bad. So, I bought a new computer or ECM module. I installed it. Installed a new steering system. Now I can get all the lights to work, but when I go to start the vehicle, it will not turn over, please help me.
Monday, December 19th, 2022 AT 12:41 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,114 POSTS
Hi,

If you replaced the ECM and steering column, was the new system programmed to recognize the new key? Is the anti-theft light staying on or flashing?

If it is, try this. Turn the key to the run position and allow it to sit for approximately ten minutes. The anti-theft light should turn off. See if it will start at that point.

Let me know.

Joe
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Monday, December 19th, 2022 AT 5:00 PM

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