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Comments
I did this on my Celica and got a used part, which cost maybe $40, and of course didn't work. I eventually opted for a new controller for $400; I could live without AC, but the heater didn't work - driving without heat for even a little while is torture! At least by the time I broke down and bought the new part I was very confident in my ability to install the part and had all the necessary tools and such at hand.
On the other hand, the other day the display on my DIC got stuck in the "nighttime" setting during the day, and didn't reset until I shut off and restarted the car...so not saying you couldn't have some other gremlin causing the problem.
Now! does anyone know the right BCM for an LS fully loaded is it the police one or other(part # please!!) also can a used one be re-programed and finally WHERE THE H*#@ IS IT IN THE CAR?
Thanks for listening to the rants of yet another Impala sufferer!
I had the exact problem as you had, the radio was draining the battery, so just like you I pulled the fuse, than I noticed that the dash was also draining the battery, so I put a switch for the dash, still something else also drained the battery. So my electrian mechanic replaced my bcm for a USED one for $120, and it solved all the problem. I hope this helps you.
There is no logical pattern to the occurance of the noise. It happens as often as twice per week or one per month. It is not effected by driving conditions or driving habits. It just does it when it wants.
The dealership has contacted a team of engeniers in Detroit for assistance but have come up with no results.
I should probably mention the radio is a Boss Premium Sound Package.
Any ideas? This is a very irritating problem.
My nephew's 2LT with the 3.5L and basic radio has pretty much lost his chime sound. His sounds like a muted bell being rung and may be the same sound you're hearing intermittently. I don't know if he has sought service yet but I'll check with him and follow-up.
Just curious, have you had problems with your Bose system previously? The Bose systems had a bad hiss (mine included) that was MOSTLY fixed by swapping out the amp in the trunk. I'd be curious to hear any experiences with your Bose system.
Thanks,
Ron
I am interested in what they find with your nephews. Please keep me posted.
All newer GM radio makes Turn Signal (CLICK CLACK), Chime sounds at the Driver side speaker. This is one way for them to save money. So if you hear unintended buzz or Blinking sounds, the radio is the culprit. It may experience some sort of brain death in these situations. You can tell the dealer to replace the radio to see if it is helpful. Early model year radio (06 model year for Impala) normally has more software or hardware bugs than the 07 and 08 models.
If you are sick and tired of seeing the dealer, then reset the radio by unplug the fuses to the radio. Let the fuses out for 4-5 minutes before plugging them back. That will cure it for a while until next time. I did that to my 10 year old GM minivan to reset the Power sliding door at least once a year to get its function back
Good luck
jt
I have suspected the radio. They tried reprograming it twice but to no avail. I think replacing it may possibly be the solution.
Thanks,
JJ
It probably is the bad BCM (Body Computer Module) that control security (horn, lock, light,..)and others in your car. My friend had his Impala honking, not starting,.. once in awhile for no reason at all. The dealer changed numbers of things but could not fix it until they replaced this module.
jt
jt
You car is odd. Maybe you should name it Herby.
After having the Crank Sensor replaced four months ago on my 2000 LS, it won't start. We drove it for a whole day...shopping, so stopping and starting and then it just didn't turn over. Just clicked. Now, we had a feeling we needed a new battery; so, my husband replaced that thinking that would be it. Still nothing. It just clicks. It's parked at my relatives and she started it once successfully, but didn't let it idle. Now we can't get it to start. It clicks and all the dash lights come on. A mechanic I am having looking at it said he will test the starter, but he thinks it is having a major electrical problems. Great.
My question is could it be the battery just wasn't fully charged so it isn't strong enough to start the car? Is it the security system? Or is it the dreaded BCM that I am reading about?
Thanks for all your help. Last time I ranted that I would sell this POS and never drive it again. I am a sucker because I really want to like the car and when it was running well, I was a happy camper.
:confuse: :sick:
here's to crossing your fingers....
My nephew is taking his car in on Tues. He doesn't remember what they're replacing but he will get details and I'll pass them along.
Regarding your amp, were you having the stereo hiss problem before (and/or after) they replaced it?
Talk to you later,
Ron
Unfornately since this is an intermitten problem, it probably is hard for the dealer to duplicate it. Everytime you turn on the Ignition switch on the vehicle, this problem may or may not happen. It may take 100 times for it to act up. Or it may take 200 times? So next time when it happens, you should drive to dealer to show them (without turning off the vehicle or radio). But then again your radio may recover when you get there. That may be why the dealer could not dupplicate it. Unless they keep your car for awhile to try it themselves.
jt
Any thoughts would be appreciated.
PS: Nothing shows up in the computer.
Anyway, the problem on mine was the ignition module. They replaced the crank sensor at the same time. About 3000 miles later, the same thing happened. The module was under warranty and replaced. It's only been a few days since the fix, so I don't know if I'm out of the woods. I'm looking at an 06 LTZ anyway. It's just another possibility for your problem.
Any other ideas where to turn/check next?
There are lots of things going on with the electronics/security systems on these cars when they seem to be just sitting there.
I don't really have any ideas for what could be wrong but if you take it in again, maybe try copying your routine and parking it for them rather than having them do it. It may be your routine sequence that's the key to figuring it out.
One other theory as to why the mechanics can't duplicate the problem... On the '06s, the hood is wired into the security system. If that's the case with your model, maybe when they raise the hood to check voltage, they're also resetting something in the security system that is cancelling whatever is drawing power in the cases where it drained the battery. You might look into that and if it is tied in, try raising the hood for a few days after parking it and see if it retains its charge. It would be a bit of a nuisance but may result in peace of mind.
The dealership has had the car several times and only got it to act up once. They replaced the amp., BCM, and reprogramed the radio twice. They told me GM wont replace any other parts until they get it to act up again.
I suspect the problem lies in the radio too. Even when the radio is off, I hear it power up every time I turn on a turn signal.
I'm not sure if I followed-up on this or not but my nephew's problem was with the front speaker that plays the door chime. Sorry I didn't get back to you sooner. Fortunately for him, it was an easy fix. Hopefully yours will be the same.
Ron
Any body have any ideas how to fix this problem?
I can't find it in the owners manual but I think I remember reading it there. Good luck!
Also, when you start the car the running lights are supposed to come on dimmed, but mine has been starting with brights. It's around 7:30 a.m. so is plenty light. Then a couple nights ago around 5:15 pm with it still pretty daylight (I'm in TN), the brights turned on automatically. Anyone else seen this?