Service active handling system
#1
Melting Slicks
Thread Starter
Service active handling system
add me to the list now. I've been getting the above referenced warning for awhile.
i knew that the front shocks were on their way out. i finally had them replaced this weekend.
i'm still getting the warning though. a few months ago, i had the Jim Mero suspension upgrade installed.
i forgot it till this morning but, i seem to member the installer pulling up a code for, steering wheel position sensor.
( i don't currently have the code. i'm waiting to hear from the installer to see if, he still has a record of it. ).
assuming that this would also trigger a warning.
been a 'good' run lately with the old gal expense wise. could have almost bought another ride for the $$$ I've put into her the last 5-6 months. i bought this car years ago, as a present from a recent divorce. turns out, it would have cheaper to stay married(?).
i knew that the front shocks were on their way out. i finally had them replaced this weekend.
i'm still getting the warning though. a few months ago, i had the Jim Mero suspension upgrade installed.
i forgot it till this morning but, i seem to member the installer pulling up a code for, steering wheel position sensor.
( i don't currently have the code. i'm waiting to hear from the installer to see if, he still has a record of it. ).
assuming that this would also trigger a warning.
been a 'good' run lately with the old gal expense wise. could have almost bought another ride for the $$$ I've put into her the last 5-6 months. i bought this car years ago, as a present from a recent divorce. turns out, it would have cheaper to stay married(?).
#2
Could be the steering wheel position sensor, or just could be a loose sensor connector, or corrode pin on the EBCM connector isntead.
So if sensor, then steering colum has to come out to get to it,
If just the connectors, you can get to them by hand to pull/clean and reconnect them isntead.
So if sensor, then steering colum has to come out to get to it,
If just the connectors, you can get to them by hand to pull/clean and reconnect them isntead.
The following users liked this post:
cgladish (07-13-2020)
#3
Melting Slicks
Thread Starter
Could be the steering wheel position sensor, or just could be a loose sensor connector, or corrode pin on the EBCM connector isntead.
So if sensor, then steering colum has to come out to get to it,
If just the connectors, you can get to them by hand to pull/clean and reconnect them isntead.
So if sensor, then steering colum has to come out to get to it,
If just the connectors, you can get to them by hand to pull/clean and reconnect them isntead.
I've looking for a month with nothing to do except gassing it up.
Last edited by cgladish; 07-14-2020 at 10:49 AM.
#4
Melting Slicks
Thread Starter
Could be the steering wheel position sensor, or just could be a loose sensor connector, or corrode pin on the EBCM connector isntead.
So if sensor, then steering colum has to come out to get to it,
If just the connectors, you can get to them by hand to pull/clean and reconnect them isntead.
So if sensor, then steering colum has to come out to get to it,
If just the connectors, you can get to them by hand to pull/clean and reconnect them isntead.
i just had the front shocks replaced last weekend and, was hoping to have my firm ride back. currently it feels like it's only riding in the tour mode. regardless of its setting, the ride is the same. previously, their wasn't a huge difference in the ride quality but, i could feel a difference. now it feels the same in either setting.
#5
would you happen to know that, if this sensor is bad ( or having a connection issues ), does it effect the traction control system and/or the mag ride system?
i just had the front shocks replaced last weekend and, was hoping to have my firm ride back. currently it feels like it's only riding in the tour mode. regardless of its setting, the ride is the same. previously, their wasn't a huge difference in the ride quality but, i could feel a difference. now it feels the same in either setting.
i just had the front shocks replaced last weekend and, was hoping to have my firm ride back. currently it feels like it's only riding in the tour mode. regardless of its setting, the ride is the same. previously, their wasn't a huge difference in the ride quality but, i could feel a difference. now it feels the same in either setting.
Tech II checking BCM data will tell you if the Steering wheel sensor is working, since it should change in voltage as you turn the wheel.
Also, will tell you what mode the F55 module in is, since the F55 ride mode button connects to the BCM, and changing it will show if the system is in Tour or Sport mode, what mode it comanding the F55 module to run in.
Note, if F55 switch, connector/],wires are broken, default mode will be tour mode. Hence BCM tells the F55 module what mode to be in and if Bcm is not telling F55/F55 not receiving the Sport mode command, F55 will stay in tour mode.
AH, steering, and Even TC is controlled by the EBCM since it's getting the inputs directly. Also, it sends out a signal to the F55 mode to kept updated on the conditions is does not see directly as well. So yes, if Steering wheel position sensor is not working, it going to effect the systems as well
So again, really need to get a tech II on the car to not only look for body codes that it can read (while plan OBDII readers can not), but to check the system input/output to make sure they are working correctly as well.
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cgladish (07-14-2020)
#6
Melting Slicks
Thread Starter
Tech II checking BCM data will tell you if the Steering wheel sensor is working, since it should change in voltage as you turn the wheel.
Also, will tell you what mode the F55 module in is, since the F55 ride mode button connects to the BCM, and changing it will show if the system is in Tour or Sport mode, what mode it comanding the F55 module to run in.
Note, if F55 switch, connector/],wires are broken, default mode will be tour mode. Hence BCM tells the F55 module what mode to be in and if Bcm is not telling F55/F55 not receiving the Sport mode command, F55 will stay in tour mode.
AH, steering, and Even TC is controlled by the EBCM since it's getting the inputs directly. Also, it sends out a signal to the F55 mode to kept updated on the conditions is does not see directly as well. So yes, if Steering wheel position sensor is not working, it going to effect the systems as well
So again, really need to get a tech II on the car to not only look for body codes that it can read (while plan OBDII readers can not), but to check the system input/output to make sure they are working correctly as well.
Also, will tell you what mode the F55 module in is, since the F55 ride mode button connects to the BCM, and changing it will show if the system is in Tour or Sport mode, what mode it comanding the F55 module to run in.
Note, if F55 switch, connector/],wires are broken, default mode will be tour mode. Hence BCM tells the F55 module what mode to be in and if Bcm is not telling F55/F55 not receiving the Sport mode command, F55 will stay in tour mode.
AH, steering, and Even TC is controlled by the EBCM since it's getting the inputs directly. Also, it sends out a signal to the F55 mode to kept updated on the conditions is does not see directly as well. So yes, if Steering wheel position sensor is not working, it going to effect the systems as well
So again, really need to get a tech II on the car to not only look for body codes that it can read (while plan OBDII readers can not), but to check the system input/output to make sure they are working correctly as well.
i miss the old days of mainly mechanical issues. cause and effect being an easy diagnostic tool. electrical issues are usually a hassle.
but i will win!
#7
mine has came on and off as well and i decided to program the telescoping wheel so it don’t move when i get in and out and hasn’t came on for a few days. idk if it’s a fix but it could be just the wiring because when it happened to me i turned the car off and started it up, it didn’t come back on.
#8
Melting Slicks
Thread Starter
mine has came on and off as well and i decided to program the telescoping wheel so it don’t move when i get in and out and hasn’t came on for a few days. idk if it’s a fix but it could be just the wiring because when it happened to me i turned the car off and started it up, it didn’t come back on.
going to have my local shop run his tech II scanner and see what pops up.
i'm getting to know this car more than i wanted to.
#11
Melting Slicks
Thread Starter
still planning on taking the car to the shop tomorrow. they are going to look this issue and an ongoing search
for a chirping noise. well, not really a chirping noise, more of a jinkling / tinkling noise. sounds like it's a pulley with a slightly loose washer. but that's another story.
regarding this meat of this thread, i was able to pull from history, a code related to active handling issue:
C0710-00 ( steering wheel angle signal )
so I'll have the shop give that sensor the once over. maybe it got loose somehow ( i haven't touched the telescopic function in years ). maybe the sensor finally gave out.
for a chirping noise. well, not really a chirping noise, more of a jinkling / tinkling noise. sounds like it's a pulley with a slightly loose washer. but that's another story.
regarding this meat of this thread, i was able to pull from history, a code related to active handling issue:
C0710-00 ( steering wheel angle signal )
so I'll have the shop give that sensor the once over. maybe it got loose somehow ( i haven't touched the telescopic function in years ). maybe the sensor finally gave out.
#12
Melting Slicks
Thread Starter
finally had two issues addressed this weekend. the chirping noise turned out to be the tensioner pulley.
i was going to replace that earlier but, having just replaced the idler pulley ( with no luck ), i didn't want to start throwing $$$ at this issue. i would have replaced the whole assembly ( bracket & pulley ). the shop replaced just the pulley only ( $26! ).
they also reset cleared the C0710-00 code ( steering wheel angle sensor ). this has eliminated the "service active handling system" from reappearing. now the currently issue is the mag ride feels like, it's only running in the tour mode.
and even then, it feels a little soft. switching the dial from tour to sport has no affect.
i recently had installed new front shocks ( and yes, they replacement mag ride shocks ).
prior to this installation i had the jim mero upgrade installed. so far, i haven' been able to experience anything close to the
sport mode. I've got notes into both jim and the shop who did the work.
i was going to replace that earlier but, having just replaced the idler pulley ( with no luck ), i didn't want to start throwing $$$ at this issue. i would have replaced the whole assembly ( bracket & pulley ). the shop replaced just the pulley only ( $26! ).
they also reset cleared the C0710-00 code ( steering wheel angle sensor ). this has eliminated the "service active handling system" from reappearing. now the currently issue is the mag ride feels like, it's only running in the tour mode.
and even then, it feels a little soft. switching the dial from tour to sport has no affect.
i recently had installed new front shocks ( and yes, they replacement mag ride shocks ).
prior to this installation i had the jim mero upgrade installed. so far, i haven' been able to experience anything close to the
sport mode. I've got notes into both jim and the shop who did the work.
#13
tech II, look at the BCM data, and make sure that is showing that the F55 is changing from cruse to sport as you change the button setting.
Next, pull up the F55 module, and make sure is changing it setting as well. If BCM is not changing setting, then check the button and the BCM connector. If F55 is not changing it's setting, then check the F55 connector.
Hence button connects to BCM, then BCM send the command to the F55 to change it setting on the Gm can bus.
Next, pull up the F55 module, and make sure is changing it setting as well. If BCM is not changing setting, then check the button and the BCM connector. If F55 is not changing it's setting, then check the F55 connector.
Hence button connects to BCM, then BCM send the command to the F55 to change it setting on the Gm can bus.
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cgladish (07-20-2020)
#14
Melting Slicks
Thread Starter
tech II, look at the BCM data, and make sure that is showing that the F55 is changing from cruse to sport as you change the button setting.
Next, pull up the F55 module, and make sure is changing it setting as well. If BCM is not changing setting, then check the button and the BCM connector. If F55 is not changing it's setting, then check the F55 connector.
Hence button connects to BCM, then BCM send the command to the F55 to change it setting on the Gm can bus.
Next, pull up the F55 module, and make sure is changing it setting as well. If BCM is not changing setting, then check the button and the BCM connector. If F55 is not changing it's setting, then check the F55 connector.
Hence button connects to BCM, then BCM send the command to the F55 to change it setting on the Gm can bus.
#15
Advanced
I posted this in another thread, but it may be of more use here. 2012 GS LT3 44,000miles. Getting the Service Active Handling System message. Performance is fine, the message just keeps coming up. I read on another thread about an issue with the steering wheel position sensor getting pushed out of place by a shaft support bearing. I just got this car, and found a blown fuse for the drivers power seat and power steering column. I replaced a blown 20a with the correct 10a and all works fine. So, I started using the power steering column. I don’t know how long it had not been used. I guess the shaft the bearing above the sensor needs some occasional grease. The sensor is now dangling off the steering column. The bearing seems to be stuck on the shaft. I think the sensor can be saved, but the steering column must have to be pulled to get that bearing back in place.
#16
Race Director
I had a left F55 front shock replaced and it seemed like it was in aport mode all the time. Uneven roads in tour mode caused the car to rock side to side. In sport it was clearly better but still some sway.
Dealer that replaced shock said nothing was wrong. 2nd dealer and non Corvette specialist said they didn't clear the original codes so the computer was acting like it had a bad shock.
Dealer that replaced shock said nothing was wrong. 2nd dealer and non Corvette specialist said they didn't clear the original codes so the computer was acting like it had a bad shock.
Last edited by phileaglesfan; 09-06-2020 at 04:17 PM.
#17
EVERYONE WITH THE STEERING SENSOR HANGING LISTEN CAREFULLY:
you NEED to disconnect the steering sensor to throw the AH code or you will get into very sticky situations. If you hit a bumpy road, the sensor will swing, the car will think youre trying to turn the steering wheel, and lock up a tire since the YAW sensor will tell the BCM the car is moving straight. I locked up a front brake while doing 60 mph on the highway after hitting a bump. REMOVE the sensor plug to throw an AH code so it won't try to self-correct.
The issue is the telescoping column being telescoped out too far and left that way for a while. When you push it back in, the screw binds to the column and pops the sensor out the back. You have to drop the column, get the lead screw to unbind, regrease, hope the sensor mount is salvageable, and reinstall. They do not sell just the sensor mount.
This can and will kill you if left unfixed. GM NEEDS to DO A RECALL on this item. I've tried to warn people before about this, I've seen it happen on multiple C6 vettes and i still get PMs from people once every half a year or so asking for more info. Please please please report this issue to NHTSA. I've done mine, more people need to do theirs so we can get this potentially deadly issue fixed.
you NEED to disconnect the steering sensor to throw the AH code or you will get into very sticky situations. If you hit a bumpy road, the sensor will swing, the car will think youre trying to turn the steering wheel, and lock up a tire since the YAW sensor will tell the BCM the car is moving straight. I locked up a front brake while doing 60 mph on the highway after hitting a bump. REMOVE the sensor plug to throw an AH code so it won't try to self-correct.
The issue is the telescoping column being telescoped out too far and left that way for a while. When you push it back in, the screw binds to the column and pops the sensor out the back. You have to drop the column, get the lead screw to unbind, regrease, hope the sensor mount is salvageable, and reinstall. They do not sell just the sensor mount.
This can and will kill you if left unfixed. GM NEEDS to DO A RECALL on this item. I've tried to warn people before about this, I've seen it happen on multiple C6 vettes and i still get PMs from people once every half a year or so asking for more info. Please please please report this issue to NHTSA. I've done mine, more people need to do theirs so we can get this potentially deadly issue fixed.
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#18
Advanced
2012 GS LT3. 44K miles. Second owner for about two weeks.
Thanks for the warning. As I’ve already posted, my steering wheel sensor is dangling off the steering column. As you’ve said, the telescoping wheel was probably not used for a long time, and the something bound up to push the sensor out of it’s housing. I have pulled the connector off the sensor to disable the active handling. I have read that this will disable active handling and is often done when the car is used on the track for racing. The ABS is not affected. I wonder how common this problem is? Cost be the dealership to repair? For, now I’m not to concerned about not using the AH. Was there a time when the AH had a button to disable it?
Thanks for the warning. As I’ve already posted, my steering wheel sensor is dangling off the steering column. As you’ve said, the telescoping wheel was probably not used for a long time, and the something bound up to push the sensor out of it’s housing. I have pulled the connector off the sensor to disable the active handling. I have read that this will disable active handling and is often done when the car is used on the track for racing. The ABS is not affected. I wonder how common this problem is? Cost be the dealership to repair? For, now I’m not to concerned about not using the AH. Was there a time when the AH had a button to disable it?
#19
Advanced
Could be the steering wheel position sensor, or just could be a loose sensor connector, or corrode pin on the EBCM connector isntead.
So if sensor, then steering colum has to come out to get to it,
If just the connectors, you can get to them by hand to pull/clean and reconnect them isntead.
So if sensor, then steering colum has to come out to get to it,
If just the connectors, you can get to them by hand to pull/clean and reconnect them isntead.