active handling problems(have codes)
#1
Heel & Toe
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active handling problems(have codes)
Active handling is kicking in when not needed and I got a service message for it.
Checked codes and what I got is listed below.
Am puzzled because only ones under TCS have "H". Maybe some others could affect the Active Handling??
Very grateful for any help with what I should do next.
Thanks!
10-PCM P1431C (fuel level sensor, I'm already trying Techron)
28-TCS C1214H and C1287H
AO-LDCM U1064H
A1 RDCM B2263H, B2265H, U1064H, U1016H
60-IPC No Codes
Checked codes and what I got is listed below.
Am puzzled because only ones under TCS have "H". Maybe some others could affect the Active Handling??
Very grateful for any help with what I should do next.
Thanks!
10-PCM P1431C (fuel level sensor, I'm already trying Techron)
28-TCS C1214H and C1287H
AO-LDCM U1064H
A1 RDCM B2263H, B2265H, U1064H, U1016H
60-IPC No Codes
#2
Le Mans Master
Active handling is kicking in when not needed and I got a service message for it.
Checked codes and what I got is listed below.
Am puzzled because only ones under TCS have "H". Maybe some others could affect the Active Handling??
Very grateful for any help with what I should do next.
Thanks!
10-PCM P1431C (fuel level sensor, I'm already trying Techron)
28-TCS C1214H and C1287H
AO-LDCM U1064H
A1 RDCM B2263H, B2265H, U1064H, U1016H
60-IPC No Codes
Checked codes and what I got is listed below.
Am puzzled because only ones under TCS have "H". Maybe some others could affect the Active Handling??
Very grateful for any help with what I should do next.
Thanks!
10-PCM P1431C (fuel level sensor, I'm already trying Techron)
28-TCS C1214H and C1287H
AO-LDCM U1064H
A1 RDCM B2263H, B2265H, U1064H, U1016H
60-IPC No Codes
The incorrect SWPS data going to the ECBM could be causing the C1214 code.
Does the TC button still function? If not it maybe the relay in the ECBM.
Hope that helps.
Last edited by Bluefire; 07-21-2009 at 02:01 PM.
#3
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Once you get the Service Message AH is totally deactivated along with traction control during that ignition cycle. C1214 is not related to C1287. C1287 indicates there is a problem with the steering sensor. This could be because of wheel alignment, the EBCM or the sensor itself. This could also be the cause of your active handling kicking in when not needed (if the sensor is on the edge of throwing a code AH may think there is a yaw rate difference it has to correct). C1214 indicates the system voltage for the BPMV is incorrect and this shuts down ABS, AH and TC.
C1214 is possibly the most expensive repair to make. It could be caused by a bad ground at G103, bad connections in the EBCM connector, low voltage or a bad EBCM, or both a bad EBCM and a bad BPMV. First check your voltage level at the EBCM connector and at its supply point in the underhood electrical center, then check the BPMV ground at G103 which is located on the driver's side frame rail next to the alternator. Then check the EBCM ground (G108) which is located under the battery along with G104. The EBCM ground could be a common failure point for both codes. Once you have checked those things then check the resistance between the BPMV motor circuits and ground. If they are below infinity then you need to replace the BPMV and replace/repair the EBCM.
Then check the steering sensor for proper operation by checking the reference voltages and connections. Then check the wheel alignment.
As you get into it you will probably need more details on how to do those things but I thought I would give you an idea of the procedure to use. If you can handle the procedure we can provide detailed diagnostic steps depending on the year of your car.
Bill
C1214 is possibly the most expensive repair to make. It could be caused by a bad ground at G103, bad connections in the EBCM connector, low voltage or a bad EBCM, or both a bad EBCM and a bad BPMV. First check your voltage level at the EBCM connector and at its supply point in the underhood electrical center, then check the BPMV ground at G103 which is located on the driver's side frame rail next to the alternator. Then check the EBCM ground (G108) which is located under the battery along with G104. The EBCM ground could be a common failure point for both codes. Once you have checked those things then check the resistance between the BPMV motor circuits and ground. If they are below infinity then you need to replace the BPMV and replace/repair the EBCM.
Then check the steering sensor for proper operation by checking the reference voltages and connections. Then check the wheel alignment.
As you get into it you will probably need more details on how to do those things but I thought I would give you an idea of the procedure to use. If you can handle the procedure we can provide detailed diagnostic steps depending on the year of your car.
Bill
#4
Heel & Toe
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Thanks for the info!
Yes, the AH button seems to be working. When I push it, the AH OFF message appears, and the AH doesn't kick in during that drive. (Back on with next ignition)
I thought that the "H" after the code meant that the problem was in the past?? but maybe it could be that it's intermittent.
Thanks for any further thoughts!
J.
Yes, the AH button seems to be working. When I push it, the AH OFF message appears, and the AH doesn't kick in during that drive. (Back on with next ignition)
I thought that the "H" after the code meant that the problem was in the past?? but maybe it could be that it's intermittent.
Thanks for any further thoughts!
J.
#5
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Thanks very much for the details. I have a 2001 coupe. I don't think I can do the ground investigating myself, but the info will be a huge help in working with a service department.
J.
J.
#6
Le Mans Master
My understanding is that if the TC button still works the ECBM relay is fine. I know for a fact that the SWPS is a cheaply made POS with thin metal contacts inside that look like they came from a slot car.
IMHO and If I were you, I would investigate the SWPS first. The SWPS is inside the car on the steering column, near the floor board. It is a green ring and has a connector on the left side.
IMHO and If I were you, I would investigate the SWPS first. The SWPS is inside the car on the steering column, near the floor board. It is a green ring and has a connector on the left side.
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Thanks for the info!
Yes, the AH button seems to be working. When I push it, the AH OFF message appears, and the AH doesn't kick in during that drive. (Back on with next ignition)
I thought that the "H" after the code meant that the problem was in the past?? but maybe it could be that it's intermittent.
Thanks for any further thoughts!
J.
Yes, the AH button seems to be working. When I push it, the AH OFF message appears, and the AH doesn't kick in during that drive. (Back on with next ignition)
I thought that the "H" after the code meant that the problem was in the past?? but maybe it could be that it's intermittent.
Thanks for any further thoughts!
J.
When you get the Service Message (ABS, TC, AH) on the DIC whatever system is highlighted has stopped working and will not function at all.
My understanding is that if the TC button still works the ECBM relay is fine. I know for a fact that the SWPS is a cheaply made POS with thin metal contacts inside that look like they came from a slot car.
IMHO and If I were you, I would investigate the SWPS first. The SWPS is inside the car on the steering column, near the floor board. It is a green ring and has a connector on the left side.
IMHO and If I were you, I would investigate the SWPS first. The SWPS is inside the car on the steering column, near the floor board. It is a green ring and has a connector on the left side.
Bill
Last edited by Bill Dearborn; 07-21-2009 at 04:48 PM.
#8
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Okay. Bottom line question. Was about to take a road trip. Not sure I can get the diagnosis and repair done in time. Is it dangerous to drive with the AH button OFF and the 1214 and 1287 issues unresolved??? Or just mean I don't have AH...
Thanks for sharing wisdom!
Thanks for sharing wisdom!
#10
Le Mans Master
Be careful with the spirited driving.
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With 1214 you will not have ABS, AH or TC. Most of the time you will not know the difference. Without ABS you stand a chance of locking a wheel under extreme braking which could result in a flat spotted tire or worse.
The antilock brake system (includes ABS, AH and TC) rides on top of the base brake system and if it fails it will not hinder the functioning of the base brake system.
Bill
The antilock brake system (includes ABS, AH and TC) rides on top of the base brake system and if it fails it will not hinder the functioning of the base brake system.
Bill
#12
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driving with code 1287
You guys are my gurus, thank you for the info! Happy to find out 1214 doesn't stop my road trip. Just means I have to behave :{
Same question please about C1287. Does that indicate a problem with the sensor that sends info about steering to the AH/TCS--OR can it also indicate a problem with the steering system itself?? Asking because of road trip and not sure I can get the diag and repair done before taking off.
J.
Same question please about C1287. Does that indicate a problem with the sensor that sends info about steering to the AH/TCS--OR can it also indicate a problem with the steering system itself?? Asking because of road trip and not sure I can get the diag and repair done before taking off.
J.
#15
Le Mans Master
You guys are my gurus, thank you for the info! Happy to find out 1214 doesn't stop my road trip. Just means I have to behave :{
Same question please about C1287. Does that indicate a problem with the sensor that sends info about steering to the AH/TCS--OR can it also indicate a problem with the steering system itself?? Asking because of road trip and not sure I can get the diag and repair done before taking off.
J.
Same question please about C1287. Does that indicate a problem with the sensor that sends info about steering to the AH/TCS--OR can it also indicate a problem with the steering system itself?? Asking because of road trip and not sure I can get the diag and repair done before taking off.
J.
I would remove the fuse that controles the AH prior to your trip and you should be fine.
#16
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When a new EBCM is installed, does it need to be programmed? I'm told by a mechanic friend that my VIN number needs to be programmed into the new module and that all parameters/inputs must be set by a qualified mechanic. He also said that if the VIN number is not programmed, the unit will drop dead after a certain number of start cycles. Any truth to this?