Keyless entry problem.

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Irish919

TYF Newbie
Joined
Jun 20, 2023
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Location
Massachusetts
Hi All
The other day both my key fobs stopped working. I replaced both battery's and nothing. The door locks, windows all work for the switches. I have good power, ground at the BCM and passenger door module, fuses are good, door harness is good. Im able to program each fob, but then they still dont work. Im trying to get ahold of a scan tool so I can read the live data/ serial data. Anything else I can check with a scan tool?

2005 yukon Denali XL
Thank you
Keith
 

Big Mama

Full Access Member
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Do you have any CEL on or any codes from a basic scan tool? Most of the parts stores will read them free.
 

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