Here are some common errors/problems when programming GM new style shark fin key using Techline Connect SPS2 and J2534 passthru device.
1). Communication error
For example:
Program a new proximity key on a 2022 Silverado with SPS2, get a communication error.
Solution:
Disconnect battery for 10 minutes.
Disconnected the battery to the vehicle for 10 mintes.
Reboot the computer, disconnect vci. Then it will start working.
2). Immobilizer procedure failed
Failed at a 2023 Chevy Tahoe key with Sps2. 10 min wait then it failed. Says need update. Add key only. Is it safe to update these modules?
Solution:
It is safe to update but then most likely the wait time will become 2 hours instead of 10 mins.
Don’t turn the ignition on like it asks you to in the beginning. Just open and close the door. Let dealer tool force ignition on. Let sps force the ignition on. Still do the open and close door procedure. And all the instructions after 10 min security bypass.
To avoid updating, try the following:
– Don’t keep the working key inside so let SPS2 force opening the ignition on add a key as if it’s all key lost.
– Every minute or so open and close the door to keep the car awake.
If keeps having this problem even after updating bcm, and ecm, change another J2534 interface.
Some users switch cardiag3 from Autel VCI200. Some switch Rlink from VCI200. It works fine.
3). UEH101:null
Techline support keeps giving me error message while downloading, if there any other way?
Solution:
Delete it and reinstall on a new computer.
Uninstalling and reinstalling with admin permissions and it works fine.
Keep good connection, and disable your firewall and Windows Defender.
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