Question about 2004 GMC Envoy
Its blowing hot on one side and cold on other and actuators have been changed. blowers are not blowing insink with controler. please help
Posted by Anonymous on
Look for the body control module under the drivers seat. It controls most of everything that happens in the car,
Posted on Jul 24, 2016
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Posted on Jan 02, 2017
SOURCE: veh wont start
by looking at the wiring diagram for your truck. the pcm1 fuse only feeds the pcm so most likely it is a grounded wire between the fuse block and pcm. follow the wire harness closely between the two and see if its grounded somewhere. also try disconnecting the pcm and see if the fuse still blows. that would isolate the problem to the wiring. it is highly unlikely that the pcm would cause the problem.
Posted on Nov 27, 2008
U have a stuck air temp control blend door, either the actuator motor is defective or the door is warped and has jammed, one thing is that u must remove the dash to rcheck replace these parts.
Posted on Mar 10, 2009
should be on the passenger side under the dash. Remove the lower dash panel and look up under the dash. you will see the blower motor and then to the left a little you will see a plug attached to a relay/resistor switch. It is held on by two screws. The Envoy is the Trailblazers sister so you may have the same issue I had. Seems like the ground is not sufficient enough causing the ground wire to get hot melting the plugs together. I had a very hard time getting them apart but did. Purchased a new relay/resistor switch and repaired the wiring myself. GM wants $100.00 bucks for the plug. Hopefully you don't have a G/F or wife like mine that thought kicking the fan speed control switch would make it work. I had to also replace that due to her breaking the switch.
Posted on Aug 16, 2009
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