Notices
C6 Corvette General Discussion General C6 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Service Active Handling - Brake Light Issues

 
Old 09-30-2014, 08:33 AM
  #41  
MACowley
CF Member
 
Member Since: Nov 2009
Location: Biloxi Ms
Posts: 50
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by DidntSettle View Post
Yeah, they replaced the brake switch on mine too, but it did not solve anything. The dealer then called the factory and they did some online diagnosis and made the call to replace the BCM. No troubles since. It was NOT under warranty and by the time it was fixed, I was in to it nearly $1K. I don't think a car with 18K (at the time) should have to have the BCM replaced. Now I wonder how long the replacement will last. Just do it and be done with it, lest you be stranded on the road calling for a tow truck....like I was.
After looking at the other thread posted above, I removed and re-plugged in the connectors on my BCM....and have not had a single issue since.....that was about a month ago.

On a side note, a friend of mine that has a 2006 Pontiac G6, got a recall notice GM Safety Recall #13036, which described the EXACT SAME issues I've been having with mine. What are the possibilities that GM is using the same BCM for these cars???



Last edited by MACowley; 09-30-2014 at 09:02 AM. Reason: insert pic
MACowley is offline  
Old 10-01-2014, 06:42 AM
  #42  
Silverado Desperado
CF Senior Member
 
Silverado Desperado's Avatar
 
Member Since: Feb 2009
Location: Houston Texas
Posts: 1,697
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by MACowley View Post
After looking at the other thread posted above, I removed and re-plugged in the connectors on my BCM....and have not had a single issue since.....that was about a month ago.
MACowley (or anyone),

Where is the BCM located?

Where are the connectors? And did you disconnect the battery first, or just unplug them with the car off?

Thanks,

SD

.

Last edited by Silverado Desperado; 10-01-2014 at 06:44 AM.
Silverado Desperado is offline  
Old 10-01-2014, 07:05 AM
  #43  
MACowley
CF Member
 
Member Since: Nov 2009
Location: Biloxi Ms
Posts: 50
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Silverado Desperado View Post
MACowley (or anyone),

Where is the BCM located?

Where are the connectors? And did you disconnect the battery first, or just unplug them with the car off?

Thanks,

SD

.
On the passenger side floorboard, pull the rug back, you will see a fuse box. 2 large wire groups one on the top, and one on the right side is what I unplugged and plugged in. I think the other thread I was directed to, had a picture of it. I did it with the car off....battery connected.
MACowley is offline  
Old 10-01-2014, 07:26 AM
  #44  
FortMorganAl
CF Senior Member
 
FortMorganAl's Avatar
 
Member Since: Feb 2007
Location: Currently somewhere in IL,IN,KY,TN,MO,AR,MS,AL, or FL
Posts: 8,483
Received 202 Likes on 169 Posts
Default

Originally Posted by MACowley View Post
On the passenger side floorboard, pull the rug back, you will see a fuse box. 2 large wire groups one on the top, and one on the right side is what I unplugged and plugged in. I think the other thread I was directed to, had a picture of it. I did it with the car off....battery connected.
You like to live dangerously, don't you? It's a computer that is running 24/7 when it is connected to a battery. It's more rugged than a laptop but not indestructible.
FortMorganAl is offline  
Old 10-07-2014, 07:23 PM
  #45  
kanvas
Junior Member
 
kanvas's Avatar
 
Member Since: Mar 2005
Location: Presto PA
Posts: 40
Received 1 Like on 1 Post
Default

Originally Posted by MACowley View Post
After looking at the other thread posted above, I removed and re-plugged in the connectors on my BCM....and have not had a single issue since.....that was about a month ago.

On a side note, a friend of mine that has a 2006 Pontiac G6, got a recall notice GM Safety Recall #13036, which described the EXACT SAME issues I've been having with mine. What are the possibilities that GM is using the same BCM for these cars???


I have been having the same issues. I had this brake light problem fixed a few years ago but it resurfaced again in the last few weeks. Lights on for no reason go off when brake pedal pressed. I was taking it to the dealer tomorrow morning.

I unplugged the BCM as suggested. Left it unplugged for a minute or so and then reconnected. After starting the car and testing the lights everything seems to be working properly.

I'll have my wife follow me to work tomorrow morning to see if the problem still exists after about 10 miles of driving. If things are OK I'll cancel the appointment.
kanvas is offline  
Old 10-24-2014, 01:13 AM
  #46  
VIPNiSS
CF Member
 
Member Since: Jun 2014
Location: Atlanta GA
Posts: 56
Likes: 0
Received 5 Likes on 1 Post
Default

kanvas.. any update?
VIPNiSS is offline  
Old 10-24-2014, 11:28 AM
  #47  
MACowley
CF Member
 
Member Since: Nov 2009
Location: Biloxi Ms
Posts: 50
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by VIPNiSS View Post
kanvas.. any update?
Mine is still working fine......
MACowley is offline  
Old 06-05-2016, 12:40 AM
  #48  
Micflip
Junior Member
 
Member Since: May 2015
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default

I have been having the same issues with the break lights and the service AHS on my 07 with 29,000 miles on it. I have had it to the dealership 5 times. replaced the break light sensor and the steering wheel position sensor still no fix. The last time I took it in they found a broken wiring harness under the steering wheel and replaced that. The next day the problems came back. I have had the car for almost 2 years and only put 5,000 miles on it and can't enjoy the car because of these issues. and when I bought the car it was an 1 owner car with a clean car fax.
Micflip is offline  
Old 06-05-2016, 01:00 AM
  #49  
DidntSettle
CF Senior Member
Support Corvetteforum!
 
DidntSettle's Avatar
 
Member Since: Jan 2005
Location: Manchester - Political correctness is tyranny with manners.
Posts: 3,874
Likes: 0
Received 15 Likes on 12 Posts
Default

The dealer replaced my BCM for about $800 and I have had no trouble since. But, as another reported in this thread, I would first try unplugging the BCM and replugging a couple of times to be sure the connection is good on all the pins. I'd be willing to bet that might have fixed mine. A computer should not fail after 29000 miles. I realize that they might but I'd try this first.
DidntSettle is offline  
Old 06-05-2016, 10:48 PM
  #50  
mile-0
CF Member
 
mile-0's Avatar
 
Member Since: Aug 2012
Location: Meredith New Hampshire
Posts: 96
Received 8 Likes on 4 Posts
Default

I have been down this road as well. Frustrating, and #13 Vette over 30 years will probably be the last! I do want to clear up some info though, are we talking the BCM ( body control module) located under the pass footwell, or the EBCM ( electronic brake control module) located in the left engine bay? Ask an early C5 owner about his EBCM and you might get punched!

My wife loves this car and uses it as her DD. She gets so wound up when it acts up, and when she is wound up, well, you know. I don't want her in an unreliable or UNSAFE car, and that's a little how I am feeling about the Vette these days.
mile-0 is offline  
Old 06-05-2016, 11:01 PM
  #51  
DidntSettle
CF Senior Member
Support Corvetteforum!
 
DidntSettle's Avatar
 
Member Since: Jan 2005
Location: Manchester - Political correctness is tyranny with manners.
Posts: 3,874
Likes: 0
Received 15 Likes on 12 Posts
Default

Originally Posted by mile-0 View Post
I have been down this road as well. Frustrating, and #13 Vette over 30 years will probably be the last! I do want to clear up some info though, are we talking the BCM ( body control module) located under the pass footwell, or the EBCM ( electronic brake control module) located in the left engine bay? Ask an early C5 owner about his EBCM and you might get punched!

My wife loves this car and uses it as her DD. She gets so wound up when it acts up, and when she is wound up, well, you know. I don't want her in an unreliable or UNSAFE car, and that's a little how I am feeling about the Vette these days.
the BCM ( body control module) located under the pass footwell
DidntSettle is offline  
Old 09-28-2018, 09:30 PM
  #52  
gandeboz
CF Senior Member
 
Member Since: Aug 2018
Posts: 109
Received 5 Likes on 4 Posts
Default

Originally Posted by harlanmott3 View Post
ok, I've read about 100 threads on here covering this issue. Seems its a very generic message. However, none seem to cover mine. Here are my symptoms:

2007 c6 z51 46,000 A6
Service active handling comes on about every drive to and from work, progressively worse over the last 3 weeks.

3 instances of "press brake to start" when I was pressing the brake. Then it would end up starting when I wasn't even pressing the brake after several minutes of trying.

I've also noticed my cruise controll does not always work lately, seems this is all related. This morning I tried to use it, it wouldn't go on. About 2 minutes later the SAH message came on.

I was living with all of that, just figured I would take a deeper look when I had time, no hurry. Then tonight.. that changed!

I was stuck in bumper to bumper traffic on the way home, SAH had already come on earlier in the drive. There was a big rig behind me, and I could see my brake lights reflecting off his bumper. The problem is, I wasn't on the bakes!! I turned off my lights, still on. I pressed on my brakes.. the light when off!! I left off the bakes and a few seconds later the lights came back on again. I had plenty of time and it seemed they came on about 3-4 seconds after I let off my brakes. Then when out as soon as I tapped on the brakes. I could almost time it. Brake lights on, press brakes.. lights out.. count to 4 mississippi .. brake lights back on. It was a huge chrome bumper and I had a very clear view of the brake lights.

On a side road on my way home I put the car in N and coasted, and turned the car off, then back on again (no brake needed). Trying to get the lights to fix so no one hit me. When I got home I got out and looked and my brake lights where still on (no one in the car touching the brakes). I had my son come out and hit the brakes and the lights when off for a second then back on again. I had him let off and they would stay on.

I called around and found a place that said they can read ABS codes, but after 30 min. of driving I couldn't get the issue again. I assume I'll get it on my way home tomorrow and I'll head directly there. However, anyone have anything in the mean time?

- I checked the brake fluid, its good.
- I do not use the telescoping wheel feature, and I don't even believe I have it.
- I had the battery tested, it tested as good. 666 amps, never noticed low volts (I have been watching).

Sorry this is so long, trying to give as much info as I can to help diagnose my issue. I was thinking maybe I should just replace the brake sensor, because things point to it. However, I'm not sure what to order or from where..
This is so obvious that its a faulty or mis adjusted brake pedal sensor/brake switch. my buddy had the same issue. Those mechanics weren't honest in what they did.
gandeboz is offline  
Old 09-29-2018, 02:15 AM
  #53  
vara411
CF Senior Member
 
Member Since: Feb 2006
Location: San Antonio Texas
Posts: 850
Received 23 Likes on 18 Posts
Default

Hello all,

Have the same issue with SAH message and brake lights stuck ON in my 2008 base coupe. Some folks have brought up the suggestion of pulling up on the brake pedal to see if the brake lights turn off... in MY case, that fixes the issue and so long as I remember to pull up on the brake pedal after every single time brakes are applied, the brake lights stay off and I don't see the SAH message. It's kind of humorous and even a little endearing but this is by no means a good permanent solution.

I am going to try the BCM disconnect/reconnect procedure this weekend.

My question is, if my problem temporarily goes away by pulling up on the brake pedal, does this mean I'm dealing with a different problem or require a different fix?

Thanks in advance.
vara411 is offline  
Old 10-01-2018, 04:08 PM
  #54  
vara411
CF Senior Member
 
Member Since: Feb 2006
Location: San Antonio Texas
Posts: 850
Received 23 Likes on 18 Posts
Default

Sorry to bump this but I have until the end of October to get my car inspected and I don't think it'll pass with a brake signal that won't turn off. Anyone have any ideas?
vara411 is offline  
Old 10-01-2018, 04:58 PM
  #55  
DidntSettle
CF Senior Member
Support Corvetteforum!
 
DidntSettle's Avatar
 
Member Since: Jan 2005
Location: Manchester - Political correctness is tyranny with manners.
Posts: 3,874
Likes: 0
Received 15 Likes on 12 Posts
Default

Originally Posted by vara411 View Post
Sorry to bump this but I have until the end of October to get my car inspected and I don't think it'll pass with a brake signal that won't turn off. Anyone have any ideas?
I had to replace the BCM. But, if it happens again Id try unplugging the BCM a couple times and see if that cured the problem, its under the passenger fwd floor. It just pulls down to expose it.
DidntSettle is offline  
Old 10-01-2018, 09:32 PM
  #56  
gandeboz
CF Senior Member
 
Member Since: Aug 2018
Posts: 109
Received 5 Likes on 4 Posts
Default

Originally Posted by DidntSettle View Post


I had to replace the BCM. But, if it happens again I’d try unplugging the BCM a couple times and see if that cured the problem, it’s under the passenger fwd floor. It just pulls down to expose it.
honestly man the dealer ripped u off big time. u should have asked for proof of codes. those symptoms u had were all brake switch issues including you being stuck in park as the switch doesn't properly send a signal to the solenoid to release. if BCM was the problem the dealer should have seen the code and replaced it first try, but obv they wanted u to go back and pay for a bcm after a brake switch.

Last edited by gandeboz; 10-01-2018 at 09:34 PM.
gandeboz is offline  
Old 10-03-2018, 05:53 PM
  #57  
vara411
CF Senior Member
 
Member Since: Feb 2006
Location: San Antonio Texas
Posts: 850
Received 23 Likes on 18 Posts
Default

Originally Posted by Bill Dearborn View Post
Based on your description it sounds like you have an issue with either the brake pedal position sensor or the BCM. The sensor mis-adjusted or in need of calibration or may need to be replaced. If it is replaced then it needs to be calibrated. If the issue isn't the sensor then the BCM could be at fault. It is more likely something went wrong in the sensor Vs the BCM so you need to look there. If you are comfortable using a DVM and with crawling around under the dash you can probably isolate the problem to one or the other but you will need the dealer to reprogram things even if you replace items yourself.

One thing I would do is drive the car and when the problem comes up again use my foot to pull up on the brake pedal and see if the problem goes away.

Bill

Hi Bill,

If pulling up on the brake pedal makes the problem go away, what does that signify? That the brake pedal position sensor is outta whack? I tried unplugging/re-plugging the BCM as suggested above but no dice. Anything I can do in the footwell area? My Chevy dealer is always super backed up and takes forever to do even the simplest things. Any recommendations?

Last edited by vara411; 10-03-2018 at 05:55 PM.
vara411 is offline  
Old 10-03-2018, 11:39 PM
  #58  
vara411
CF Senior Member
 
Member Since: Feb 2006
Location: San Antonio Texas
Posts: 850
Received 23 Likes on 18 Posts
Default

Originally Posted by vara411 View Post
Hi Bill,

If pulling up on the brake pedal makes the problem go away, what does that signify? That the brake pedal position sensor is outta whack? I tried unplugging/re-plugging the BCM as suggested above but no dice. Anything I can do in the footwell area? My Chevy dealer is always super backed up and takes forever to do even the simplest things. Any recommendations?
Ha! I guess I answered my own question... on a hunch I just put my foot behind my brake pedal and put some slow but very firm traction, pulling the pedal towards me. BINGO, problem solved. After a full evening of volunteering to do errands for my wife (she still doesn't know), I can happily report the problem is gone! Maybe the pedal just needs some adjusting.

One gremlin down... gonna miss lifting up on the brake pedal... was getting used to it so much I did it in our other cars!
vara411 is offline  

Thread Tools
Search this Thread
Quick Reply: Service Active Handling - Brake Light Issues


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: