TPMS learn mode fail
Racer
Joined: Aug 2007
Posts: 314
Likes: 7
From: Holiday Florida
St. Jude Donor '11-'12-'13-'14
If your tool is able to scan, then you can scan each TPMS one at a time to trigger them and get a reading off each one of them (without the car needing to be in relearn mode).
Scan of one of my front tires, and each TPMS has it own serial number, so as they are triggered in the correct order when the car is set into relearn mode, the car (RCDLM) relearns then in the correct tire position/order.
Other nice things on the inexpensive Cub tool (was $19, but tire rake sold out of them), the tool can not only scan and trigger, but clone TPMS as well. Also, since the tool has a vet 05-09 setting, then a vet 2010 to 13 setting (HHR 09 setting for the later vets), you can tell if the wrong year type TPMS are in the tires as well (wrong year/type TPMS for the Vet year models will not communicate with the RCDLR in that year vet).
Scan of one of my front tires, and each TPMS has it own serial number, so as they are triggered in the correct order when the car is set into relearn mode, the car (RCDLM) relearns then in the correct tire position/order.
Other nice things on the inexpensive Cub tool (was $19, but tire rake sold out of them), the tool can not only scan and trigger, but clone TPMS as well. Also, since the tool has a vet 05-09 setting, then a vet 2010 to 13 setting (HHR 09 setting for the later vets), you can tell if the wrong year type TPMS are in the tires as well (wrong year/type TPMS for the Vet year models will not communicate with the RCDLR in that year vet).
It reads the number off the replacement sensor too.
I pumped up the tires by 6 psi and gave a good hard run around the block, when I came back I could read the codes. The add air and make a hard run is the only thing I did different from the previous ten attempts.
What it doesn't do is cause the horn to honk once it's read a sensor when the car gives the honk for learning mode.
It could read one sensor on my buddy's '08 CTS, and his system isn't telling him to service soon.
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
The GM tool we use
Not all tools do this. The other test is to run them side by with a known good one that responds to the tool.
Best 2 ways to do it.
Chuck CoW
