Function of Gear Shift

Gear shift function

TRANSMISSION 722.617 in MODEL 220.063
TRANSMISSION 722.618 in MODEL 220.065/165
TRANSMISSION 722.632 in MODEL 220.070/170
TRANSMISSION 722.633 in MODEL 220.075/175

Function
On automatic transmission 722.6 the electrohydraulic control unit converts the electrical signals originating from the electronic transmission control (ETC) into hydraulic signals.

Faults occurring in the ETC control module (N15/3) are covered by the emergency running mode system. It is designed so that the driver can reach a service operation even under extreme conditions.

Selector lever positions < P >, < R >, < N > and < D > are mechanically passed on to the range selector lever on the transmission side by means of a control cable in parallel to transmission via CAN. By pressing or holding the selector lever towards < + > and < - > the shift range is preselected and displayed in the instrument cluster (A1) until a transmission upshift is possible.

Also Refer To:
- Transmission control module Transmission Control Module
- Gear Change. Function of Gear Change
- Manual Driving Program Selection. Function of Manual Driving Program Selection
- Emergency Running Mode. Function of Emergency Running Mode