1998 Chevrolet Suburban 1500 Q&A

1998 Chevrolet Suburban 1500 Question: How do I trouble shoot the problem listed below. What codes should I look for ?

I have the 4 button control four shifting between the various modes. The red neutral light and the 2HI and 4 LO lights are on. -
Answer 1
It needs to be scanned with a Tech2 scanner to read the transfer case module and find the fault. -
Answer 2
very poss the switch is going out,very common.get a diag as stated in previuos post -