Problems with 2004 Chevrolet Colorado ELECTRICAL SYSTEM

Tl* the contact owns a 2004 chevrolet colorado. the contact stated that the interior lighting, door chime, and radio did not turn off. the vehicle was taken to mayse automotive group (2032 s elliott ave, aurora, mo 65605) where it was determined that the wires running from the rear driver's side door had to be replaced; however, the parts for the repair were no longer being manufactured. the manufacturer was not notified of the failure. the vehicle was not repaired. the approximate failure mileage was 190,000.

Vehicles bcm-body control module is defective or the system in its self is defective. vehicles will not start or may shut off at random from time to time. scan tools will not be able to recognize the problem as the bcm. so repairs made may make it seem like it fixed the problem but a couple hours/days/weeks later the problem will disguise it self as something else or even come back as the same problem. i myself was told it was the starter and hey it worked, until 3 hours later. then told the ignition passlock was defective, got it fixed until 1 hour later. now i have narrowed it down to what controls the whole system, the bcm. many people have complaints about this same issue all over the web forums, i dont know if any has been reported to nhtsa. so i figured i would start. i have this system effects 2004-2012 models of chevy colorado, gmc canyon and hummer h3.

Idle control via electronic throttle body raises rpm very high when the accelerator pedal is not depressed, causing uncontrolled acceleration of vehicle during coasting or when brake pedal is applied. turning the vehicle off with the key is the only action that has resulted in a cessation of extremely high idle. after restarting the vehicle, the symptom is gone and the vehicle operates normally. this behavior is erratic and inconsistent, the problem has been difficult to duplicate during diagnosis. all testing and inspection of the electronic throttle body, wiring harness, connectors, and functions within the engine computer has shown no defect or indication that a wiring fault, dirty throttle body, or other "wear and tear" item is the cause of this intermittent revving at idle. the most recent event occurred on august 9th 2017. this has been occuring for at least 6 months, on average once a month in frequency.

Problem # 1: had to replace the hvac resistor and its wiring harness. resistor plug and the harness plug was burned and melted...fire hazard! this safety hazard could have burned up my vehicle. problem #2: the abs warning light keeps coming on and when this happens (every day or so) the brakes do not work properly. this seems to happen when the vehicle is not parked on a level surface. the fault occurs once the vehicle moves forward from the parked position.

I bought this vehicle in 2014 with only 86000 miles on it. i had to have brand new key cut and programmed when i purchased it. starting in july of 2016 i started having issues with it not starting and cutting out. now it won't start at all. it is the theft system not allowing it to start. i have read thousands of complaint about this issue over many different gm vehicles. some nearly causing wrecks, stranding people with kids , etc. why has this issue been let go for so long. does gm not care about their customers. i bought another chevy right after i bought this truck. we got rid of it because it was doing the same thing.

I too have experienced problems with the hvac system of this truck. i have had to replace no less than 4 resistors and connectors due to melting and burned connections. i have not had to replace a single fuse. my hvac is once again inoperable and i have opened and inspected each connection point to locate the problem. i have found multiple connectors to be burned or melted. this problem has been flagged by the nhsta in the hummer h3 vehicles which use the same hvac system. the chevrolet/gmc/isuzu colorado/canyon (gmt355) should be included in this recall. there is no reason these connections should get hot enough to bubble and burn plastic before burning out a fuse. i can provide images upon request. i can also provide an example of a failed connector in the hvac speed control switch for physical inspection. i have set the "fire" flag on this report as there has been evidence of multiple electrical fires on multiple occasions in several locations in the hvac system of this vehicle. *js

Airbag light is on. my truck has never been in an accident. through research i have found that the wiring in the door breaks. *tr

A/c heater resistor and plastic connector for both resistor and blower motor arced and melted. also air bag light is on. *tr

Turn ignition to off position and park indicator light and radio stays on. have to jiggle key to get to go off. come out several hours later and park indicator light and radio are back on./ also, heat and air control fan only works on high speed. i was told it was a resistor ,i replaced resistor and it still continues to do this. i can reach down and jiggle the resistor and it works on all speeds for a short while only. have a friend with gmc canyon that has had this problem since his was new also. *tr

2004 chevrolet colorado. consumer writes in regards to engine and ignition switch problems. *smd the consumer stated on april 12, 2014, the vehicle shut off while driving 30 mph. the brake pedal was hard to push and the dashboard read reduced power. after waiting three minutes, the consumer was able to re-start the vehicle. the vehicle stalled again, after driving two miles. according to the service invoice, the pcm computer was bad.

I was making a left turn and i let the clutch out a little too fast which stalled the engine. i went to restart and engine just craned over and over would not start. that is where i almost got hit. had to push trk thru intersection .i have had this problem with it not restarting for a few years now.i have to wait 10 minutes before restarting. it happens intermittently when i go to start it does not start. it just cranks over.the book says its an anti-theft switch.i have to wait 10 minutes before restarting.i have seen on chevy colorado trk sites that it is a common problem with the ignition switch. *tr

Tl* the contact owns a 2004 chevrolet colorado. the contact stated her vehicle would stall intermittently after it was turned on. the failure was diagnosed, both the dealer and manufacturer were aware of the failure. the vehicle was not repaired. the failure mileage was 117,000.

This incident occurred twice. it involves the heater blower motor resistor assembly. 8 years ago my daughter used put her back pack on the passenger floor where it repeatedly made impacted the connection to the blower motor relay assembly. this eventually caused the pin and socket on the orange wire to separate to the point where it arced and burnt. i found and repaired the socket when the heater would only work on high. on the 16th of dec 2013, a passenger size 12 shoes accidentally, and unwittingly kicked the same spot and caused the same fault. i repaired the socket again. my complaint is the resistor connection is in a spot to easily service, but it is in a vulnerable spot for accidental contact. i believe it needs a robust protective cover, either metal or plastic. for people that cannot repair their own vehicles, this situation could cost them a couple of hundred dollars. my other electrical fault is the right side window motor. it quit working couple of years ago, and i was able to take it apart and clean the brushes. it ...

The switch which controls the fan speed for the heat and a/c quit working. the fan only works when the it is set on high. *tr

The ignition will not start at first. it takes multiple times in order to get the engine to turn over. once the ignition does cause the engine to turn over, the vehicle will suddenly lose power while driving as the vehicle shuts itself off (as if the ignition has been turned off although it has not been). this has happened on multiple occasions in the course of normal driving activities, several times while crossing busy intersections which luckily has not resulted in any crashes to date, but may very well result in a potentially fatal one should it continue to occur. engine has been tested and all systems check out, except for the ignition switch which -will- have to be replaced. *tr