Active handling!!
Thread Starter
Racer
Joined: Jan 2005
Posts: 471
Likes: 0
From: Washington
Active handling!!
I just put my car back on the road form hibernation after I charged the battery and drove it a few times I get low brake fluid and service active handling coming up in the DIC, I have tried to reset the alarms they will not, the alarms that will not clear B2262 , B2264 , and the active handling code is C1248 when I push reset on this one it clears for a split second and comes right back, I have a 99 vert auto, I have done a search already and tried cleaning grounds to no avail, I,m hoping someone can give me some more info on these codes I have an appointment for tomorrow with a Chevy dealer I'm not happy about!!.
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
B2262 and B2264 are codes for the driver's side mirror's vertical and horizontal position sensors.
C1248 is a code that inhibits the DRP rear brake proportioning system. Here's what the service manual says about it:
_____________
DTC C1248
Circuit Description
The dynamic rear proportioning (DRP) is a control system that replaces the hydraulic proportioning function of the mechanical proportioning valve in the base brake system. The DRP control system is part of the operating software in the EBCM. The DRP uses active control with the existing ABS in order to regulate the vehicle's rear brake pressure.
Conditions for Running the DTC
One or more faults have been detected by the EBCM in the ABS/TCS systems.
Conditions for Setting the DTC
One of the following conditions exits:
* DTC C1236 sets and ignition voltage is less than 8.5 volts.
* DTC C1254 or C1255 sets.
* DTCs C1265 and C1267 set.
* Two wheel speed sensor DTCs on the same axle set.
Action Taken When the DTC Sets
* The EBCM disables the DRP for the duration of the ignition cycle.
* The red Brake warning indicator turns ON.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present and the DTC is cleared with a scan tool.
* The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.
Diagnostic Aids
* Use this DTC in order to differentiate which of the following conditions is present:
o The EBCM turned ON the red Brake warning indicator.
o The instrument cluster turned ON the red Brake warning indicator due to low brake fluid in the master cylinder reservoir.
o The instrument cluster turned ON the red Brake warning indicator due to the application of the park brake.
* Diagnose any other ABS DTCs that set along with this DTC.
C1248 is a code that inhibits the DRP rear brake proportioning system. Here's what the service manual says about it:
_____________
DTC C1248
Circuit Description
The dynamic rear proportioning (DRP) is a control system that replaces the hydraulic proportioning function of the mechanical proportioning valve in the base brake system. The DRP control system is part of the operating software in the EBCM. The DRP uses active control with the existing ABS in order to regulate the vehicle's rear brake pressure.
Conditions for Running the DTC
One or more faults have been detected by the EBCM in the ABS/TCS systems.
Conditions for Setting the DTC
One of the following conditions exits:
* DTC C1236 sets and ignition voltage is less than 8.5 volts.
* DTC C1254 or C1255 sets.
* DTCs C1265 and C1267 set.
* Two wheel speed sensor DTCs on the same axle set.
Action Taken When the DTC Sets
* The EBCM disables the DRP for the duration of the ignition cycle.
* The red Brake warning indicator turns ON.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present and the DTC is cleared with a scan tool.
* The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.
Diagnostic Aids
* Use this DTC in order to differentiate which of the following conditions is present:
o The EBCM turned ON the red Brake warning indicator.
o The instrument cluster turned ON the red Brake warning indicator due to low brake fluid in the master cylinder reservoir.
o The instrument cluster turned ON the red Brake warning indicator due to the application of the park brake.
* Diagnose any other ABS DTCs that set along with this DTC.
Melting Slicks
Joined: Apr 2005
Posts: 3,216
Likes: 4
From: ---Phoenix, AZ --- Boiler Up, Hammer Down!
I just picked my C5 up today from the dealer as I was having the Active Handling light come on every week!! Bare with me but this is what was identified and noted on my service work document...
Found engine harness contacted exhaust manifold, 7 wires showing bare, wires also contacting each other, repaired wires, necessary to remove exhaust, starter, to gain access to wires. Replaced engine oil level pigtail, knock sensor pigtail and ground wire.
3 days later and I think they fixed it!! They said the wires were burnt up from touching the exhaust near one rear tire. This prompted my active handling light as well as low oil level warnings to constantly turn on! Good thing my 03 was still under warranty. The only bad thing is they burned 1/4 tank of my gas letting the car idle during the time that had my car for some reason, as they only put 2.6 miles on the car
Goodluck!
Found engine harness contacted exhaust manifold, 7 wires showing bare, wires also contacting each other, repaired wires, necessary to remove exhaust, starter, to gain access to wires. Replaced engine oil level pigtail, knock sensor pigtail and ground wire.
3 days later and I think they fixed it!! They said the wires were burnt up from touching the exhaust near one rear tire. This prompted my active handling light as well as low oil level warnings to constantly turn on! Good thing my 03 was still under warranty. The only bad thing is they burned 1/4 tank of my gas letting the car idle during the time that had my car for some reason, as they only put 2.6 miles on the car
Goodluck!
Thread Starter
Racer
Joined: Jan 2005
Posts: 471
Likes: 0
From: Washington
I got my car fixed the price was $950.00, it needed a new master-cylinder and front brakes were ready to be done, also had to flush all the brake lines pieces from the internals of the master-cylinder were taking a little trip on there own, I was hoping for a little less expensive fix but I know it sure could have been worse, one good thing is that my car recieved a complete inspection and the tech told me that it is in very good shape, I'm glad to be driving it again, thanks for the input. 
Race Director
Joined: Nov 2001
Posts: 18,682
Likes: 4
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12
Originally Posted by AR8007
I got my car fixed the price was $950.00, it needed a new master-cylinder and front brakes were ready to be done, also had to flush all the brake lines pieces from the internals of the master-cylinder were taking a little trip on there own, I was hoping for a little less expensive fix but I know it sure could have been worse, one good thing is that my car recieved a complete inspection and the tech told me that it is in very good shape, I'm glad to be driving it again, thanks for the input.
Glad to hear that your problems were solved
Did you check the DIC for the codes again? Did your service tech tell you what were the B2262 and B2264 codes were for and why they wont clear?
Melting Slicks
Joined: Apr 2005
Posts: 3,216
Likes: 4
From: ---Phoenix, AZ --- Boiler Up, Hammer Down!
Originally Posted by Purdue94
I just picked my C5 up today from the dealer as I was having the Active Handling light come on every week!! Bare with me but this is what was identified and noted on my service work document...
Found engine harness contacted exhaust manifold, 7 wires showing bare, wires also contacting each other, repaired wires, necessary to remove exhaust, starter, to gain access to wires. Replaced engine oil level pigtail, knock sensor pigtail and ground wire.
3 days later and I think they fixed it!! They said the wires were burnt up from touching the exhaust near one rear tire. This prompted my active handling light as well as low oil level warnings to constantly turn on! Good thing my 03 was still under warranty. The only bad thing is they burned 1/4 tank of my gas letting the car idle during the time that had my car for some reason, as they only put 2.6 miles on the car
Goodluck!
Found engine harness contacted exhaust manifold, 7 wires showing bare, wires also contacting each other, repaired wires, necessary to remove exhaust, starter, to gain access to wires. Replaced engine oil level pigtail, knock sensor pigtail and ground wire.
3 days later and I think they fixed it!! They said the wires were burnt up from touching the exhaust near one rear tire. This prompted my active handling light as well as low oil level warnings to constantly turn on! Good thing my 03 was still under warranty. The only bad thing is they burned 1/4 tank of my gas letting the car idle during the time that had my car for some reason, as they only put 2.6 miles on the car
Goodluck!
.
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