Hey guys,
long time lurker but first time poster. I have a 99 GMC suburban 5.7 335k miles NP8. I live in North Dakota and I've recently been getting a service 4wd light on the dash seemingly when the temperature is below freezing. Scanned the code with a snappy scanner at work and came up with a c0367 (front axle control circuit high). When the service 4wd light is on selecting any mode but 2hi results in that selection flashing and no shifting.
I have a basic Bluetooth obd code reader that I can use to clear the code. Once the code is gone I shift into whatever mode I wish. It seems like the code appears when I park the vehicle in 4wd. ​My questions are: do I just replace the TCCM and call it a day? If so should I try my luck on a used module? Or is it possible to dissemble the module and resolder some connections? I wouldn't mind trying to open the TCCM up, but I have no idea which connections would need to be soldered. I've searched the forums and Google extensively and it has led me here. Thanks in advance

 

Welcome to the forum.

 

Back when I had my old '99 Yukon the motor on the front axle that shifts it was a common issue back then.