Dillonharriis
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- May 8, 2015
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99 k1500 suburban SLT
The 4x4 push buttons don't stay lit up and when you hook a scanner up to it you get the DTC CO315 code talking about some open ground circuit. Everything on the 4x4 has been replaced except the transfer case control module (TCCM) was thinking about replacing that but on a lot of sites people say that's not the problem and we even tried running a new ground from the tccm all the way to the transfer case and it still didn't fix the problem. Also the the lights on the switch flash for just a second when you start it up.
The 4x4 push buttons don't stay lit up and when you hook a scanner up to it you get the DTC CO315 code talking about some open ground circuit. Everything on the 4x4 has been replaced except the transfer case control module (TCCM) was thinking about replacing that but on a lot of sites people say that's not the problem and we even tried running a new ground from the tccm all the way to the transfer case and it still didn't fix the problem. Also the the lights on the switch flash for just a second when you start it up.