tccm relearn???

[rob_z71]

is there a relearn procedure for after installing a new tccm? ive been having trouble with my 4wd and finally figured out that i think its the tccm. the old module would go into 4lo but not 4hi. i got a new one from rockauto and plugged it in and now the 2hi or 4wd buttons wont even light up at all. truck is a 1998 gmc k1500 with an np1 transfer case. any insight would be greatly appreciated. thanks

 

[Brandon Brownlee]

On this video the guy references resetting the tccm

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Ignition on... off for 5 seconds... repeat a bunch. Not sure if it works but this guy seems pretty confident.