Door locks not working [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Door locks not working


David Schear
05-09-2005, 10:32 AM
Door locks not working

On my 02 cc sb d/a. They work sometimes and then all of a sudden they won't. after awhile, they start working again. Another thing that happened on saturday is right after the door locks started working, the next time that I started the pickup, the illumination for the gear selector on the instrument cluster didn't work. It came back on after driving for about 5 minutes. Does anyone have any ideas what might be causing? It all started on saturday. the pickup runs great and this is the first problem that I have ever had with it in 63,000 miles.
any and all advice and recommendations are very appreciated.

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2002 2500HD D/A crew cab 4X4, K&N intake system, Ranch hand grill guard, Westin nerf bars, Westin bed rails, XM radio

Joe Pool
05-21-2005, 01:26 AM
It sounds like your NSBU switch on the transmission may be going out. It is a fairly common problem on '01 and '02 DAs.

Joe

David Schear
05-21-2005, 02:06 AM
Thanks. I posted this in another section as well and have already changed out the switch.