Last post on Nov 25, 2013 at 5:21 PM
You are in the Chevrolet Colorado and GMC Canyon
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Chevrolet Colorado, GMC Canyon, Electrical, Truck
#668 of 684 Re: 2005 Chevy Colorado Ignition Problems, Windows & Locks problems and mor [stevep75]
Mar 22, 2013 (12:22 pm)
This door lock and window issue is all over this thread. Disregard all the general "don't know what they are doing comments". There are basically 3 ways to fix this issue. Remove the plugs off the door switch module and apply di-electric grease to the plugs. Replug back in and see if the problem is resolved. Check for a good 12v feed that powers the door module. You may have to test this by applying a 12v load such as a headlight (2-3 amps), to the circuit to make sure you can pull a good 12 volts through the wire. There have been problems with the fuse block fuse connection for the door module loosing power at that point. If the previous 2 methods don't work, replace the door module (on ebay or amazon for about 40-60 bucks.)
Disconnecting the battery and or touching battery cables together don't do a thing even though it may appear to resolve the problem as it is an intermittent problem. I fixed mine 2 years ago with di-electric grease.
The body computer is NOT corrupted or anything as every other function of the body computer still functions. All other methods of weird stuff are just "Shade tree mechanics" that don't know what is going on.
Licensed Master Mechanic Light and Heavy Vehicles (trucks and Semi's) GM mechanic for over 40 years.
Finally sold my Colorado as I couldn't get good mileage around town. Was able to pull 23-24mpg on highway, but might as well drive a full size pickup that gets that TOO.
When sold, everything functioned like factory new with no check engine light either. I was happy with the vehicle except for poor stop and go mileage for a 4 cylinder engine. In my opinion, the 4 cyl engine had adequate power. Some people bitch that Colorado's were underpowered but it didn't seem all that bad to me.
#669 of 684 Re: 2005 Chevy Colorado Ignition Problems, Windows & Locks problems and mor [stevep75]
Mar 25, 2013 (8:02 am)
If I understand your post correctly, stevep75, you are headed to your dealership to get this looked into? Keep us updated on your progress on this! If we can be of any assistance, we can be contacted at socialmediagm.com (include your name and contact information, the last 8 digits of your VIN, and a summary of the situation).
Sarah, GM Customer Service
#670 of 684 Re: Starting issues with 2006 Colorado 2.8 [retired19]
May 09, 2013 (11:02 am)
hello, can anyone tell me the item numbers or the exact name so we can order
the parts mentioned that is
1. the ignition passlock sensor
2. timing sensor
3. crank sensor
greatly appreciate any help
#671 of 684 Re: Starting issues with 2006 Colorado 2.8 [rick1949]
by MrShift@Edmunds HOST
May 09, 2013 (12:10 pm)
1. The passlock sensor is a component within the ignition switch, so you buy the entire switch:
part # 15795321
2. Not sure what you mean by "timing sensor". do you mean camshaft positioning sensor (that is, valve timing) or do you mean something related to ignition timing?
3. Part # 12588097
IF you mean camshaft sensor, that part # is: 12584516
If you mean ignition timing, that is not done by sensor. It works thusly:
Each ignition coil/module has the following circuits:
An ignition voltage circuit
An ignition control (IC) circuit
The PCM controls the individual coils by transmitting timing pulses on the IC circuit of each ignition coil/module to enable a spark event.
The spark plugs are connected to each coil by a short boot. The boot contains a spring that conducts the spark energy from the coil to the spark plug.
#672 of 684 charge on system while changing battery
Aug 20, 2013 (8:59 am)
OK, my battery is going dead, 05 Colorado. Has anyone tried keeping a charge on the system, either with a battery charger or a jumper from another car, while changing the battery?
I was considering taking it to the dealer to have a new battery installed but they want $230 to install a new battery. The only reason I would ever take it there is because of all the problems I have read about, and from what I've read and experienced, I don't think I trust them to get it right anyway. When I told them my concerns they acted like they didn't know what I was talking about.
#673 of 684 Re: charge on system while changing battery [cral_dogman]
Aug 20, 2013 (12:06 pm)
Are you just trying to change the battery, or is the battery going flat overnight? If it is...
The first question is, "Do you have the other symptoms?". Does your driver window still work? Does the fob lock the doors? If the answer is 'no', then you probably have the weird software glitch that no one at Chevy has ever heard about in seven years. If you take it to them, plan on having them replace the battery, the BCM, burn out your blower motor and handing you a bill for a grand to not fix the problem. If this is the case, then the best fix is probably replacing the door/window module, (that Chevy swears has nothing to do with the problem).
If it is just a battery issue, without the window/fob thing, then it may be an unrelated weird electrical problem.
I would check for a battery at Batteries Plus before I'd get scalped by a dealer. The last time I checked (back before I gave up on the Colorado and bought a Toyota), the batteries were only available through a dealer. Perhaps now there are aftermarket sources.
Just remember, "The Chevy Colorado, the gift that keeps on giving... to their service department".
The best advice, sell the truck and never buy another Chevy product.
Look up "Chevy Electrical Problems" in the dictionary and you will see an entry that says, "See hopeless situations".
Seriously, good luck. You're going to need it as long as you own that truck.
#674 of 684 Re: charge on system while changing battery [cral_dogman]
Aug 20, 2013 (2:13 pm)
There's no reason that you couldn't swap a battery out while keeping the leads live but you'd have to be careful not to touch anything else. Maybe some extra hands?
You can get a battery for the Colorado just about anywhere now. I bought mine at Advance Auto for under $100 and they did the work.
My 9 year old Colorado is a 2004 model with about 130K on it and other than the door locks not working properly, and the body computer crashing twice, it's been a good truck. I'm on my third set of tires which isn't bad for the miles, second battery, and it still drives and runs like a new truck. I won't buy another GM but that's just politics...
#675 of 684 Re: charge on system while changing battery [mrwebman]
Aug 21, 2013 (5:47 am)
There are too many other problems that can occur by changing a battery with the engine running, IMHO. Just insure all electrical devices are off, doors closed, windows up and engine off, than swap the new battery in. Sounds like you are concerned about dropping voltage on the truck and having the door window and locks not work. You can actually bring on this situation with a near shot battery - the low voltage of the old battery pushes a lot more current through the connectors then they were designed for - this includes the fuse connectors in the fuse block, causing them to overheat and lose their gripping. This results in an intermittant connection that can fluctuate when outside temperatures rise and fall. I describe how I fixed this problem on mine in posts 426 and 438 in this forum - check them out - not elegant, but I haven't touched it since then and it still works fine - over 2 years now! None of the other "magic"cures I have read make any logical sense. Good luck!
#676 of 684 Re: charge on system while changing battery [bitsmasher]
Aug 21, 2013 (6:35 am)
As a GM mechanic, the only thing I was ever concerned about when changing a battery is losing the customer pre-sets on the radio. I changed the battery in my 2005 Colorado using the normal method and didn't experience any window or lock problems. However I had that problem in the past and lubed and cleaned the connections on the door lock/window module.
It is possible to change the battery while the vehicle is running. Just remove the positive post, (being careful not to touch ground with the battery post removal tool), and wrap it in a cloth or duct tape and place aside. The ground you don't have to worry about. Remove the battery and install new battery and reverse the procedure. If I were to do this, (and have done it in the past), I would leave the headlights on so the alternator would be supplying some current to the vehicle (to lessen voltage spikes).
As a side note, apparently Colorado trucks are not the only one with window/lock problems. A friend of mine had a 2010 Dodge Charger that the right window quit working. As I couldn't troubleshoot it right away, he went for a few months without it working. When he changed his battery, it started working again. Interesting stuff.
Dennis, (certified ASE mechanic).
#677 of 684 Re: charge on system while changing battery [bitsmasher]
Aug 21, 2013 (6:36 am)
The battery was very low this morning, enough to reset the clock. It barely started but everything worked so I took it to Sears and had them drop a new battery in it. I got lucky, I guess. Everything works OK for now but I will keep this forum bookmarked for future reference, I will probably need it.