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Chevy Colorado and GMC Canyon Electrical Problems

249 messages,  Last post on Nov 24, 2009 at 4:21 AM

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What is this discussion about? Chevrolet Colorado, GMC Canyon, Electrical, Truck

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#157 of 249 k by puregreen Feb 07, 2009 (12:05 pm)
Dont have a fax will try to get one.
#158 of 249 Re: Drivers power window, door locks stopped working [HopeGMC] by zipyz28 Feb 07, 2009 (5:52 pm)
Replying to: HopeGMC (Feb 04, 2009 11:34 am) I have a 2004 colorado crew cab with the same problem with the locks and drivers window. On dec 26th I decided time for a new battery and which I replaced and that's when this problem started. Could this problem come from just disconnecting the terminals? Well thanks to HopeGMC it's working again. I took it apart and looked at everything and things looked OK so I tapped the relay and put everything back togather and wow it worked. A GMC/ Chevy repair...... My hats off to HopeGMC thanks alot. What is the BCM and TSB. Just for reference I might need later. Thanks again... ZIPY Replies to this message: leadfoot4 (Feb 08, 2009 5:36 am) zipyz28 (Feb 08, 2009 5:32 pm) leadfoot4 (Feb 09, 2009 4:45 am) and 1 more...
#159 of 249 Re: Drivers power window, door locks stopped working [zipyz28] by leadfoot4 Feb 08, 2009 (5:36 am)
Replying to: zipyz28 (Feb 07, 2009 5:52 pm) Zipy, glad to hear you're up and running again...   BCM and TSB are acronyms for "body control module" amd "technical service bulletin". Replies to this message: zipyz28 (Feb 08, 2009 5:32 pm) leadfoot4 (Feb 09, 2009 4:45 am) zipyz28 (Feb 09, 2009 7:05 pm)
#160 of 249 Re: Drivers power window, door locks stopped working [leadfoot4] by zipyz28 Feb 08, 2009 (5:32 pm)
Replying to: leadfoot4 (Feb 08, 2009 5:36 am) Thanks for the info leadfoot4. BCM & fusebox be the same? Replies to this message: leadfoot4 (Feb 09, 2009 4:45 am) zipyz28 (Feb 09, 2009 7:05 pm)
#161 of 249 Re: Drivers power window, door locks stopped working [zipyz28] by leadfoot4 Feb 09, 2009 (4:45 am)
Replying to: zipyz28 (Feb 08, 2009 5:32 pm) "Zip", no, those are seperate components. The BCM and the ECM or PCM (Engine Control Module and Powertrain Control Module) are the main computers in the vehicle.The ECM controls the engine's functions, and depending on how complicated the vehicle, it may be just a subsystem of the PCM. The pcm would then control the transmission, transfer case, and in some cases, the rear axle, if it's an electrically controlled limited slip. The PCM also interfaces with the ABS system.   The power to all of these systems comes from the battery and charging system, via the fuse box (for protection).   Sometimes I long for the simpler days of "points and condensors"...... Replies to this message: zipyz28 (Feb 09, 2009 7:05 pm)
#162 of 249 Re: Drivers power window, door locks stopped working [leadfoot4] by zipyz28 Feb 09, 2009 (7:05 pm)
Replying to: leadfoot4 (Feb 09, 2009 4:45 am) leadfoot4.......ECM I know. didn't know it was PCM also. This is the first I've heard of BCM. Learning curve..........Thanks.......Zipy
#163 of 249 Re: Drivers power window, door locks stopped working [HopeGMC] by ECR223 Feb 10, 2009 (1:57 pm)
Replying to: HopeGMC (Feb 04, 2009 11:34 am) Thank you HopeGMC. I talked about taking the truck in 2 months ago, but still never found the time, and because my other car has been buried under 2 ft of snow. I tried the relay thing today, and as soon as I put it back in the truck, everything started working again. So you saved me more inconvenience, and probably some money... Well at least for now... But thanks for the tip, it was greatly appreciated... It will be so nice to have power door locks again, AND TO BE ABLE TO GO TO A DRIVE THROUGH, OR ATM....
#164 of 249 Re: Drivers power window, door locks stopped working [HopeGMC] by mrwebman Feb 10, 2009 (3:32 pm)
Replying to: HopeGMC (Feb 04, 2009 11:34 am) Hi,   I'm having just the door lock problem (no window problems at all) where my doors will not unlock with the key fob but they will lock with it and the doors lock and unlock normally from inside of the vehicle. The key fob is good because the lights flash when I unlock the doors with the fob but it just doesn't trip the unlock mechanism. Also, if I do not unlock with the fob first, the alarm sounds when I use the key to open the door. Oh, and one other thing that I noticed is that when I remove the key from the ignition, it doesn't unlock the doors. I could have sworn that it used to do that.   Anyhow, if you have a schematic of the system I would love to get a copy from you. I have the wiring diagram from a car maintenance book but it does not have a schematic... just a wire going in and a wire going out, etc.   Other than this one problem, the truck has been real good. It's excellent on gas and has plenty of get up and go.   Thanks for any help. Cheers.
#165 of 249 brake lights by diddysmash Feb 12, 2009 (7:05 pm)
I have a 2006 gmc canyon with a 2.8L. It just now hit 30000 miles. i have had no problems until now and for some reason my brake lights won't light up. The funny thing is that my third brake light works fine. I have replaced the bulbs, checked all the fuses, and have even traced the wiring as far as i can see it but cant seem to find the problem. I contacted the dealer and got the usual BS ($80 per hour) has anyone had the same problem or have any suggestions on what to do. Replies to this message: HopeGMC (Feb 13, 2009 5:03 am)
#166 of 249 Re: brake lights [diddysmash] by HopeGMC Feb 13, 2009 (5:03 am)
Replying to: diddysmash (Feb 12, 2009 7:05 pm) There was a recall on my 2004 on the brake light switdh. You might want to check with a dealer

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