Question about 1999 GMC Yukon Denali

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I have a 99 yukon denali and the radio wipers and power windows will stop working at random then come back on at random and something is drainging my battery. Took it to GM and they tested thee altenator and starter and found them to working fine but cannot explain the drain of the battery. Could the problem with the wirpers and radio be drainging the battery as well? wipers , radio and window go off and on at random. Baterry , alternator is good . what could the problem be?

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Posted on Jan 02, 2017

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SOURCE: I have a 99 yukon

Sounds to me like the body control module is having a problem.

Posted on May 15, 2009

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1999 YUKON DENALI THE RADIO,WIPERS AND WINDOW LOSE POWER AFTER DRIVING ABOUT A HOUR.....THEN TURN BACK ON AFTER 30 MIN......WHAT COULD BE MY PROBLEM.


I had the same problem with mine and it was the body control module kinda. If you take the cover off of you center console, the bcm is back towards your cd changer. It is all the way at the bottom and has a 15+ wire wiring harness pluged into it. The problem with mine was simply the plug was coming lose. Hope this helps and is a simple fix for you too.

Feb 05, 2013 | 1999 GMC Yukon Denali

1 Answer

99 Denali wiring from BCM


The BCM seems to be the source of some of the problems you mention. The red wire connected to terminal F is the power source. The BRN wire connected to terminal D supplies power to the ignition switch. The DK BLU wire connected to terminal C supplies power to the wiper and radio fuses and the power window circuit breaker which probably is the source of the clicking sound in the instrument panel fuse block. Normally, with the ignition switch in START or RUN position power is applied through GAUGES fuse 4 to the instruments (not dash lights) in the cluster. I believe replacement of the BCM will solve most of the problems you describe

Oct 30, 2012 | 1999 GMC Yukon Denali

1 Answer

2002 gmc yukon radio and wipers and windows stop working the I can hit middle consal and it might or might not work for a will Help


Power for those devices is provided from the retained accessory power which is controlled by the BCM (body control module) which is in the console.I had the same problem with the radio, wipers and windows all stopping. I tried running the diag procedure for the BCM but couldn't get in to run. I then read online about a loose connection in the BCM, so I took the 4 screws out of the console, got access to the BCM and removed it. inside is a small circuit board. On the back of the circuit board where most of the soldering is, there was a bad connection to a relay. Re-soldered the connection and the problem went away.

Jun 07, 2009 | 2000 GMC Yukon Denali

1 Answer

99 Yukon windshield wipers sometimes won t turn on and other time stop after working


We had the same problem and sometimes they wouldn't turn off. The intermittent wipers were random. We replaced the wiper motor. Be sure to get the motor with two balls on the wiper shaft (one for each wiper arm). If you can't find it, you'll have to change the part out on the new motor. Keep the wiper arms in the same location on removal, or it will jam and you'll have to start over.

Jul 14, 2008 | 1999 GMC Yukon

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