1999 1500 4X4 Suburban.4X4 switch not lighting.

BIGTODDLEE

MEMBER
1999 CHEVROLET SUBURBAN

I have recently purchased a suburban, and the fourwheel drive switch dosnt light to signal anything at all, I have tried my switch in another friends truck smae year same truck and it works in his truck fine, and his switch dosnt work in mine. I also have tried to put mine in 4x4 and it dosnt respond.I need to know what in fact controls the switch and the selector lights and why or what to do to get my 4x4 working again.

Sunday, March 11th, 2007 AT 3:33 AM

3 Replies

CHEVY22

MECHANIC
1,375 POSTS

Did you check the fuses, there are two, one in ip center on left side of dahs and one in the relay box under the hood, see what happens there and let me know.
Jim

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Sunday, March 11th, 2007 AT 8:48 AM

BIGTODDLEE

MEMBER
2 POSTS

Ok, the switch is a four button. Being top left 2 hi bottom left auto 4x4, top right four high, bottom right four low. There is a neutral indicator on the left side of the switch also but no buton.

As for what you asked, when I cycle the key. Neu. Indicator is lit and red, and all the others come on yellow, stay on for a second then all but the four high indicator go out. The four high indicator stays lit, if I try to select another button it blinks a few times then four high stays lit and the other goes out. As for the fuse it was the one that said T CASE that was blown. Again thank you Jim for your expertise and your time, Sincerely Big Todd

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Thursday, March 15th, 2007 AT 1:40 AM

CHEVY22

MECHANIC
1,375 POSTS

Ok now we are gettin some where, put in the rigt fuse in the tcase hole nut not yet, under the column will be a box with a harness with at least six wires this is called the tccm, pull the harness withh the key off and replace the fuse and let me know if it blows or not, soor y I was in boston from thursday until sunday

jim

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Sunday, March 18th, 2007 AT 10:40 PM