DRIVING STABILIZATION CONTROL FAILURE: ABS/DSC INSTRUMENT LAMPS LIT- DIAGNOSIS. 1. DSC's fault codes...

Bulletin number

M340216

Component

Service brakes, hydraulic: antilock/traction control/electronic limited slip: wheel speed sensor/tone ring

Summary

DRIVING STABILIZATION CONTROL FAILURE: ABS/DSC INSTRUMENT LAMPS LIT- DIAGNOSIS. 1. DSC's fault codes stored from two different wheel speed sensors (both front or both rear): 4809B0 - wheel speed sensor - front left - drive off recognition faulty and 4809CD - wheel speed sensor - front right - drive off recognition faultyor 4809B9 - wheel speed sensor - rear left - drive off recognition faultyand 480686 - wheel speed sensor - rear right - drive off recognition faulty. 2. Next ignition ON (after above codes stored). a) DME fault can occur:1F054D - drive, safety function: Drive power output reduced, DSC signals implausible and b) Malfunction Indicator Lamp (MIL) may light up. Faulty drive off recognition due to: a towing operation with a raised axle operation of the vehicle on the vehicle hoist operation of the vehicle on the roller test stand DSC diagnosis recognizes implausible wheel speeds, so no control is possible. DME fault is entered on safety grounds since the DSC fault still exists after a terminal change and may only be removed while driving.

Owners of these vehicles have filed 17 complaints in the brakes category.