Active handling problem
Drifting
Joined: May 2000
Posts: 1,917
Likes: 3
From: Southern NH
Check for DIC codes. The most common cause for this erroneous message is that your IAT sensor is the source of the problem.
During initial startup, the EBCM has to calibrate active handling by verifying wheel speed for all four wheels in a straight line. During very cold days, this could take longer and the system is designed to determine outside temperature using the IAT sensor.
However if the sensor, or more likely the connector to it has a problem the EBCM gets an erroneous cold reading from the IAT circuit and displays the message. The DIC codes will confirm if that's the problem, and if it is there's a lot of info on the forum to troubleshoot the connector to verify whether one of the wires in the connector is open. This is common because the wires are very thin.
During initial startup, the EBCM has to calibrate active handling by verifying wheel speed for all four wheels in a straight line. During very cold days, this could take longer and the system is designed to determine outside temperature using the IAT sensor.
However if the sensor, or more likely the connector to it has a problem the EBCM gets an erroneous cold reading from the IAT circuit and displays the message. The DIC codes will confirm if that's the problem, and if it is there's a lot of info on the forum to troubleshoot the connector to verify whether one of the wires in the connector is open. This is common because the wires are very thin.
