When i first start driving the car, the active handling light comes on and says, "warming up". It is supposed to go off but mine doesn't?? Any ideas??

 

check for faults.you probably have a fault for "steering angle calibration"

 

And what does that mean?? Would it make the check engine light come on?

 

no,it won't make the check engine light come on.active handling is inactive.for active handling to work,one signal needed is the steering angle.check for faults and post them.i need to know what faults you have,if any,to help.

 

The ACT/HNDLG-WARMING UP message is set either because the underhood temperature is too cold or the Steering Wheel Position Sensor has not been centered after 30 seconds. There is no indication how cold is too cold! The Electronic Brake And Traction Control Module (EBTCM) acquires information from wheel speed sensors to see if any wheel is slipping and also monitors the Stoplight switch to see if the brakes are being applied (in which case Traction Control can be disabled if necessary). It monitors the Steering Wheel Position Sensor and determines when the car is being driven in a straight line and how far the wheel is being turned. The computer waits until the car is going 18 MPH and then monitors the SWPS for steady state for 30 seconds. It then assumes that the vehicle is going straight and accepts that output from the sensor as "steering wheel centered position". This is done to compensate for wear over time. It monitors the Lateral Accelerometer to determine the lateral acceleration of the car. These two measurements are used to calculate the desired yaw rate. The LA also provides input for Bank Angle Compensation so that the system does not over compensate in banked turns. It acquires Yaw Rate from the Yaw Rate Sensor and calculates Yaw Rate Error and will modulate brake fluid pressure to individual wheels to restore proper yaw rate error. If a system malfunction is detected it can disable the Anti-Lock, Traction Control and Active Handling Systems and will turn on the AntiLock and/or CAR Icon on the dash. There are three pieces to this system: AntiLock Brakes:If any wheel slips or stops turning, the system modulates the hydraulic pressure to that wheel to return it to a no slip condition. It cannot apply higher pressure that the drive is applying with the brakes. High back pressure caused by some stainless steel brakes lines has been cited as a reason for faults in this system. Traction Control System: measures excessive rear wheel speed relative to front wheel speed and will a do the following:1. Throttle shutdown.2. Timing Control to reduce power.3 Rear Brake intervention. You haven't driven your car if you haven't set this off once in a while. It has nothing to do with the front brakes. Active Handling: Uses the measurements I mentioned above to determine of the car is in danger of taking an off road excursion not intended by the driver. Yaw Rate is the deciding factor. If the Yaw Rate Error increases above a calculated margin it uses differential braking to compensate as necessary. For understeer it will apply one of the front brakes and for oversteer it will apply one of the rear brakes. There are a number of cautions in this section of the manual:1. Do not use a quick charger to charge a dead battery unless the battery has been disconnected. 2. Do not attempt to start a car that has a dead battery using a "Starting Mode" battery charger. This can damage the computers in the system. 3. Take careful note of the ABS/TCS wiring and components locations and installation. They are extremely sensitive to electromagnetic interference and proper care and mounting are essential to the proper operation of the system. 4. Do not hang the suspension items from the WSS cables during service of any wheel. These cables are easily damaged. The bottom line here is do not ignore any ABS/TCS/AHS warning messages.

 

THANKS FOR THIS ARTICLE, AND WHERE SHOULD I START TO CHECK FOR FAULTS, OR HOW??

 

Is there any way to turn off the active handeling message on screen so you can read gauges with active handeling off. Thought you might know.

 

Sure...just hit the Reset button (to the right on the dash with the other buttons) and the warning will go away and allow you to read other messages.

 

Anyone know how to find faults in the system?

 

Check out this tech tip... https://www.corvetteforum.com/techti...D=26&TopicID=1

 

how can i fix the "steering calibration"