Remote Start Troubleshooting

[DaveO9]

.. seen this calibration procedure for Dorman on ROCKAUTO

https://www.rockauto.com/info/167/599-192_TN.PDF

Different than OEM? no mention of VIN programming.
Same part number for a 09 tahoe vs 13 silverado.

I am GUESSING maybe bad module, OR need VIN programming like other GM modules?
(is the fuel pump module normally a VIN programmed part? but not the Dorman?)

Since there are no codes, I don't think it's anything a tuner can disable. (looking through the DTC's, most xfer case module codes are set to 'no error reported' except for loss of communication with transfer case module on the ECM side, which is 'MIL on second error'...

Thanks. The calibration procedure is to learn the actuator motor for the proper movements for each position. That all is working fine - I can get 4-low and everything else.

Yeah, I got excited when I read your post yesterday about the change in protocol. In thinking about it afterwards, I came to the same conclusion that that is probably not it. Possibly you're correct on bad module. I am considering ordering a different module from eBay, but that is an expensive guess if it doesn't change anything. I'm just at a loss as to why others on this site have done the same conversion and not had any problems. (earlier in this thread Tozan confirmed that his remote start still works.)