Traction control
Instructor
Joined: Nov 2003
Posts: 100
Likes: 0
From: Granville NY
Once in a great while I get a " Active handling warming up" message. One time it said service active handling but it was raining like hell and I figured it was a one time deal. No problems since that incedent.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Originally Posted by NEVERL8C5
Does anyone know what this does when it senses a need to be active and has anyone had any problems with it?
"The Active Handling controller takes data on wheel speeds, steering angle and rate, yaw rate, lateral acceleration and brake pressure. If it detects a significant understeer situation, it will momentarily apply or, if the driver is already on the brakes, increase pressure to the inside rear brake. That applies additional yaw torque to the car in the direction it is turning which decreases the understeer. If the controller detects an excessive oversteer situation, Active Handling applies the outside front brake. This time, the yaw torque is opposite the turning direction and decreases oversteer."
I've had the odd "Service Active Handling, Service Traction Control, Service ABS" caption with a C1214 code. That could mean ECBM problems so I'm keeping an eye out.
Thread Starter
Pro
Joined: Oct 2005
Posts: 623
Likes: 0
From: SpringHill Florida
Thanks for the info mine had the warm up message and then warm up complete come on at start up and i had never seen this before. When active does this do anything to the way the engine runs? I tried to power brake the car with the system on and it seemed like it wanted to kill the engine. I did the same thing with it off and it just ran fine.Does this sound normal?
