electric problem

Asked by Mar 14, 2016 at 07:32 PM about the 2000 GMC Yukon Denali 4WD

Question type: Maintenance & Repair

My denali has no door locks no sound coming out
the radio no button to open the back glass and no
cigarette lighter and they all went out at the
sametime can you please help me and i checked
all the fuses to

3 Answers

101,855

Could be a couple of things, no power or grounds to BCM, control relay failure, BCM lost factory presets. What does a code reader say? You may have to go to a GM dealer and have the system reflashed. Has the battery been dead or removed prior to this happening?

No the battery hasnt been removed r dead. The code reader doesnt say anything but for cam r crank shaft sencor , o2 heater circuit, and distributor

101,855

It still sounds like the BCM has lost all of the factory presets, unfortunately only a GM dealer can put them back. Hopefully you don't have an intermittent connection problem between the BCM and power supply.

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