Hello. I am a new member here and have a 2004 Corvette Coupe (3rd owner) with 36K on the odometer. This last summer while driving down the highway at about 70 mph the front left tire locked up and I got the "service active handling" message. Checking the DIC the error code was C1282 H. I reset the code and went on about our day. Then it began to happen more and more often to the point where my wife refuses to drive the car and the factors have nearly always been different. Stopped at a stop light and the "service active handling" light comes on and throws the C1282 code. Driving and turning at 15 mph and the wheel locking up and throwing the error code again. It has been random enough that I feel it cannot be attributed to bumps, weather, or other driving conditions.

I pulled the sensor out this weekend and cleaned the contacts with electrical contact cleaner and a duster (no dust inside, very clean) and there were no signs of a poor connection such as loose wires or corrosion. Waited about an hour (battery disconnected) and then reinstalled it and went for a drive. While sitting at a stop light after about 7 miles, I was revving the engine the "service active handling" light came on again. So, I went home and pulled the sensor and took it my local mechanic who said there was really no good way to test the sensor and I may have to just buy a new one ($300-400 genuine GM).

I have read through the other threads and I had already installed a new batter last year (Optima red top) and while it did accidentally go dead last winter it is normally driven and ran as much as I can even through the winter when the roads are clear of all salt. Is there anything else that I can check without a high end multimeter? The grounds all look ok and I am not wanting to go down the path of replacing parts if I can avoid it. If anyone knows of a good corvette mechanic in the NE Indiana region, I'd be happy to give them a ring and see what we can figure out as well.

Thanks for the forum. Although I am a short term member, I have enjoyed the resources very much over the last three (3) years. You guys are a wealth of information!

 

BY BILL DEARBORNE{Any code in the ABS system will automatically turn off the affected portions of the system so you don't have to do anything to turn it off and you will not get stuck. C1282 shuts down the Active Handling and the Traction Control but not the ABS. Here is the description of how this part of the system operates and the actions taken by the car when the code occurs.

DTC C1282
Circuit Description
The vehicle stability enhancement system (VSES) is activated by the electronic brake control mdoule (EBCM) calculating the desired yaw rate and comparing it to the actual yaw rate input. The desired yaw rate is calculated from measured steering wheel position, vehicle speed, and lateral acceleration. The difference between the desired yaw rate and actual yaw rate is the yaw rate error, which is a measurement of oversteer or understeer. If the yaw rate error becomes too large, the EBCM will attempt to correct the vehicle's yaw motion by applying differential braking to the left or right front wheel.

The amount of differential braking applied to the left or right front wheel is based on both the yaw rate error and side slip rate error. The side slip rate error is a function of the lateral acceleration minus the product of the yaw rate and vehicle speed. The yaw rate error and side slip rate error are combined to produce the total delta velocity error. When the delta velocity error becomes too large and the VSES system activates, the drivers steering inputs combined with the differential braking will attempt to bring the delta velocity error toward zero.

The VSES activations generally occur during aggressive driving, in the turns or bumpy roads without much use of the accelerator pedal. When braking during VSES activation, the brake pedal will feel different than the ABS pedal pulsation. The brake pedal pulsates at a higher frequency during VSES activation.

Conditions for Running the DTC
The EBCM performs 6 different tests to detect a DTC condition. The numbers below correspond to the numbers in Conditions for Setting the DTC.

1. The yaw rate sensor bias test runs with the ignition ON.
2. The yaw rate sensor acceleration test runs with the ignition ON.
3. The yaw rate sensor circuit test runs with the vehicle stopped or with the vehicle speed greater than 45 km/h (28 mph).
4. The yaw rate isolation test runs with the following conditions:
-The brake pedal is not pressed.
-The ABS is not active.
-The vehicle speed is greater than 5 km/h (3 mph).
5. The above yaw rate isolation test run with the VSES active.
6. The false activation test runs with the VSES active.

Conditions for Setting the DTC
The EBCM performs 6 different tests to detect a DTC condition. The numbers below correspond to the numbers in Conditions for Running the DTC.

1. The yaw rate bias is greater than 7 degrees/second.
2. The yaw rate input change is greater than 390 degrees/second/second.
3. The yaw rate input voltage is less than 0.15 volts or greater than 4.85 volts for 1 second.
4. The yaw rate error is greater than 10 degrees/second 30 times within a drive cycle.
5. The yaw rate error is greater than 10 degrees/second for 5 seconds. Under this condition, this DTC will set along with DTC C1281.
6. The yaw rate error is greater than 10 degrees/second with the vehicle speed less than 60 km/h (37 mph) and the acceleration pedal is pressed more than 25 percent of the pedal travel range for 1 second during the VSES activation. Under this condition, this DTC will set along with DTC C1281.
Action Taken When the DTC Sets
The EBCM disables the VSES for the duration of the ignition cycle.
The Traction Control and Active Handling indicator turns ON.
The DIC displays the Service Active Handling message.
The ABS remains functional.
Bill

I MY SELF had experienced the same wheel lock up BUT, It was actually caused by a faulty wheel speed sensor connector for the front wheels. When the EVENT HAPPENS, without turning off the ignition, clear any MESSAGES in the DIC by pressing and holding RESET. Then read ALL the DTCs.

 

So I had my local mechanic (old GM/Pontiac dealer) order a new sensor (genuine GM) and installed it yesterday. Roads aren’t great here in NE Indiana but I’ve got about 15 miles on it so far without any issues. Hopefully this will be the fix.