Active handling goes nutz!! Almost causes accident...
02-06-2009, 10:37 AM
#21
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Glad you are OK. Perhaps setup a video camera inside your car and if it ever happens again, it can be documented?As much as I like technological features such as AH, seems like the more a car has, the more that can go wrong with it. I wanted AH but my 98 did not come with it... didn't in 01 or 02 it was switched over to "2nd generation" AH?
02-06-2009, 01:08 PM
#23
Drifting
I'd be willing to bet that when you check the codes, C1287 and/or C1288 will show. The steering positioning sensor will need to be replaced.
http://forums.corvetteforum.com/c5-t...on-sensor.html
http://forums.corvetteforum.com/c5-t...on-sensor.html
You will also get the loss of Cruise Control and the YAW SENSOR will show as bad or buss error.
Just went through this, same thing scared the "poo" out of me till I figured it out. $80.00 part 2 hours labor.
Last edited by 08 ATOMIC-Z; 02-06-2009 at 01:12 PM. Reason: more info
02-06-2009, 01:38 PM
#24
Burning Brakes
So I'm entering the highway on my way to work, and I get in the left lane to accelerate past a really slow merger... I'm going about 50 when all of a sudden, my nose starts to pull really hard to the right and the vehicle slows way down. The DIC is flashing Active Handling at me as I attempt to get control of the vehicle. I was unable to prevent the car from changing lanes, but I managed to get all the way over to the shoulder and stop without getting hit.
I switch off active handling, and away I go. My EBCM was rebuilt by ABS Fixer last year and I haven't had any problems with it since (before that was getting the ole' C1214 code). I've heard people claim that their AH went crazy causing an accident, but didn't know whether to believe it or not. Thankfully there wasn't a whole lot of traffic on the road, otherwise, I'd have hit someone for sure. Thank God I hadn't gotten up to full highway speed yet -- don't know if I could have kept control at 70 MPH versus 50...
Any thoughts on what is wrong? I'm sort of afraid to turn the AH back on unless I'm in a huge parking lot with nothing to hit anywhere near me.
I switch off active handling, and away I go. My EBCM was rebuilt by ABS Fixer last year and I haven't had any problems with it since (before that was getting the ole' C1214 code). I've heard people claim that their AH went crazy causing an accident, but didn't know whether to believe it or not. Thankfully there wasn't a whole lot of traffic on the road, otherwise, I'd have hit someone for sure. Thank God I hadn't gotten up to full highway speed yet -- don't know if I could have kept control at 70 MPH versus 50...
Any thoughts on what is wrong? I'm sort of afraid to turn the AH back on unless I'm in a huge parking lot with nothing to hit anywhere near me.
CMC (ret)
02-06-2009, 03:14 PM
#25
Race Director
didn't in 01 or 02 it was switched over to "2nd generation" AH?
02-06-2009, 05:47 PM
#26
Safety Car
Ed
02-07-2009, 03:00 PM
#28
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Thank God that's the shoulder over there and not on-coming traffic as it would have been in the States. I had the SWPS sensor codes set but I haven't gotten a chance to check it/fix it yet (see location).
02-07-2009, 05:51 PM
#29
Pro
I think the OP should check his tire pressures. It may be something else but a tire going down can cause what he described. Most of the people driving around with TC and AH turned off are making a big mistake. A man has to know his limitations.
02-08-2009, 02:24 PM
#31
Burning Brakes
02-09-2009, 09:39 AM
#32
Drifting
I am a bit shocked at the AH issues. I would suggest filing with the ntsb so information can be recorded on this. If it is really a issue and enough data is generated the NTSB will work with GM (assuming there are still in business) a recall for system update or inspection. Perhaps if this info is filed it will prevent an accident,injury or worse.
02-09-2009, 09:50 AM
#33
Melting Slicks
I am a bit shocked at the AH issues. I would suggest filing with the ntsb so information can be recorded on this. If it is really a issue and enough data is generated the NTSB will work with GM (assuming there are still in business) a recall for system update or inspection. Perhaps if this info is filed it will prevent an accident,injury or worse.
02-09-2009, 10:45 AM
#34
Le Mans Master
on a 1999 Frc...if you turn the AH off...how do you know it IS off? Is there a dash light or something? Does it automatically come back on after each start-up?
02-09-2009, 10:59 AM
#35
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While I'm sure that AH has saved many accidents in many different types of vehicles, I NEVER have mine on. The best way to learn your car is to do many HPDE's with the AH off and learn to properly control your vehicle in all attitudes. Your right foot steering modulator is a blast to get dialed in.
Mine was off-line for alomst four years (darn EBCM) and I LOVED it. I really learned what my/car's limits were. If it weren't for the ABS inop issue in shipping it overseas I would have left it that way. Now I kinda wish I had...
02-09-2009, 11:07 AM
#36
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HAHAHAHA 
I called the road side assistance number when mine first locked up on me and after getting transfered 7-8 times they told me that nothing was wrong with my car.
It felt good telling the guy to nevermind I'd fix the GD thing myself (gotta love the by-pass).
I actually tried to get my EBCM fixed when it first started to fail under warranty (service ABS/TC/AH messages). After keeping the car for a week they told me something along the lines of it was because I was driving it in ice and snow in CO. Sure enough two months later (and 5000k beyond the 30,000 mile warranty) it died.
I called the road side assistance number when mine first locked up on me and after getting transfered 7-8 times they told me that nothing was wrong with my car.
It felt good telling the guy to nevermind I'd fix the GD thing myself (gotta love the by-pass).
I actually tried to get my EBCM fixed when it first started to fail under warranty (service ABS/TC/AH messages). After keeping the car for a week they told me something along the lines of it was because I was driving it in ice and snow in CO. Sure enough two months later (and 5000k beyond the 30,000 mile warranty) it died.
02-09-2009, 12:02 PM
#37
Race Director
My DIC recently showed a message of active handeling not being on without even touching the button. It sometimes turns itself off while driving in comp mode. Even after a quick shut down/restart it will not come back on. I guess I should turn it off and leave it off for fear of it doing what the OP's did.
02-09-2009, 01:38 PM
#38
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Wounded Warrior Escort '11
My DIC recently showed a message of active handeling not being on without even touching the button. It sometimes turns itself off while driving in comp mode. Even after a quick shut down/restart it will not come back on. I guess I should turn it off and leave it off for fear of it doing what the OP's did.
02-11-2009, 02:09 AM
#40
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this seems very strange, because i have 315/30 18 on the back and 275/40 17 on the front and the rears i believe are smaller, but i have never had this problem