My window switch for 2004 chevy trailblazer quit working

check cruise control fuse and check the brake lights see if brake light working because the brake light switch will deactivate cruise control when brakes is applied.if brake lights dont work either fuse blowed or switch bad.if all is good have vechicle code scan because cruise control control by PCM and vechicle speed sensor and thottle actuator control motor.

I would check the turn signal switch. The cruise and turn signal are on the same switch. The brake lights go through the switch before going to the brake lights. And the turn signals don't work with the ignition off.

They are 6.5 inch, but may require an adapter because they are slightly over sized. BUT, if BOTH rear speakers quit working, that is probably a problem in the RADIO, not the speakers!

This just happened to me last month. I got alot of info off this site. http://vatspasslockpasskeysecurityhelp.yolasite.com/

replace the master switch in the drivers door.....sometimes they are a problem...hope this helps

For the stalling issue, the throttle body needs to be cleaned, grime in this area prevents the throttle plate from closing completely and allowing air to enter, making the air/fuel mixture lean.
The dead speedometer could be a bad stepper motor in the instrument cluster or a bad speed sensor on the transmission. If the cruise control is not working, the problem is most likely the speed sensor.

a couple of things,1 blower motor fuse.2 blower motor gone out.3 switch on fan speed control switch not sending signal to fans.after checking the fuses.next check theswitch on control panel.set ac or heater.if fan still doesnt come on then replace it.when it work and then stops working there are a lot of possiblities that caused the prob relay too not fliping over inside staying close loop.hope this helps.

you can unplug the switch and use a jumper wire to try to activate the motor manually if that works then change the switch however window motors due have intermittent spells of not working before they completely quit

The daytime running lights run the high beam bulbs at low voltage so it sounds like you need to put the relays back where they were and either replace the low beam bulbs or repair the wiring to them.Also the relay you removed could be defective.

This is the first time I have heard of this problem. It's not to say it's not common. Try the salvage yard first obviously cause its cheaper. If problem presists contact the dealer for advice.