The Engine Control Module (ECM) detects the following conditions:

•The vehicle speed slows at a rate that exceeds the “Quick Stop Rate” that is programmed.
•The service brake is applied.

Probable Causes:

•The parameter for the “Quick Stop Rate” may be set too low.

Note: This setting can be affected by the load on the vehicle. If the vehicle is operated without a trailer or with no load, the vehicle will stop faster than the same vehicle with a heavy load.