My key will not open the driver’s side?

Tiny
TSHANTAE2
  • MEMBER
  • 2007 SATURN ION
  • 2.2L
  • AUTOMATIC
  • 67,276 MILES
My key won’t open the driver’s side, but it can open the passenger side door, but when I press the button, it can lock and unlock all doors.
Tuesday, November 28th, 2023 AT 3:10 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
When you say key do you mean the remote or physical key in the lock? If you are using the remote it sounds like the BCM is going out which controls the door lock system. Here are the door lock wiring diagrams so you can see how the system works.

Here is a guide on how to change out the BCM, you can get a preprogrammed unit by searching Google or Ebay:

https://www.2carpros.com/articles/how-to-replace-a-bcm-body-control-module

Here is the location of the BCM for your car. Check out the images (below). Please let us know what happens.
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Tuesday, November 28th, 2023 AT 10:24 AM
Tiny
TSHANTAE2
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The physical key.
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Tuesday, November 28th, 2023 AT 1:18 PM
Tiny
KEN L
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  • 47,643 POSTS
Okay, this means the door lock tumbler is worn out or the key needs to be replaced, do you have another key you can try? Here is how to replace the tumbler in the door. Check out the images (below). Let us know how it goes.
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Thursday, November 30th, 2023 AT 9:21 AM

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