domelights and tailgate diagnosis

dla442

Original poster
Member
Mar 31, 2012
249
grand rapids, mi
The dome lights stay on on a 05 TB and the rear tailgate being slammed shut turned them off. I unplugged the two wire harness to the lower tailgate handle locking mechanism and now dome light shuts off. What is the exact part number or name of the switch/solenoid the recognizes that the tailgate is closed so the dome shuts off after 20 seconds? It seems this is the issue but do not want to pay dealer $$ for the part. All other functions worked like lock/unlock/ alarm fob etc so I do not think its the body module tucked under the liftgate panel. was looking for a diagram but no luck.

Thanxs
 

The_Roadie

Lifetime VIP Donor
Member
Nov 19, 2011
9,957
Portland, OR
check the parts diagrams at parts.nalleygmc.com
 

dla442

Original poster
Member
Mar 31, 2012
249
grand rapids, mi
solved.....broken orange wire at liftgate pivot where the harness pops out. not the large gage orange one either but the small inconspicuous one that I failed to check and cost me 200 bucks at dealer to find out. if anyone needs a programmed lgm for an 05 TB lt2 thats fully loaded its on ebay for 35 bucks under seller "forfortwo"
 

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