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

2004 CHEVROLET TRAILBLAZER
250,137 MILES • V6 • 4WD • AUTOMATIC
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DIESELGURL23
  • MEMBER
  • 1 POST
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.
Dec 19, 2022 at 4:41 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 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
Dec 19, 2022 at 9:00 AM
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