Component description for transmission mode control unit - GF27.19-P-1350AHX

WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2016 Mercedes-Benz E63 S AMG, 2016 Mercedes-Benz E400, 2016 Mercedes-Benz E350, 2016 Mercedes-Benz E300, and 2016 Mercedes-Benz E250. However, it is still accessible from the selected car via links, so may be relevant.

TRANSMISSION 722.930 up to 5/31/11, 722.931 as of 6/1/11 in MODEL 212.0/2

Location

The transmission mode control unit is on the right under the step plate in the front passenger footwell.

Fig 1: Transmission Mode Control Unit

Courtesy of MERCEDES-BENZ USA

Task

General information for vehicles up to facelift 13

On the transmission mode control unit, up to 5 modular buttons or sensors can be directly connected. They are read in by the transmission mode control unit directly or via the AMG DRIVE UNIT LIN (LIN B11), processed digitally and placed on the chassis CAN (CAN E) and on the drive train CAN (CAN C).

The transmission mode control unit contains memory functions for storing states (e.g. settings). Apart from this, the transmission mode control unit is also equipped with an internal fault memory.

Status of AMG button (S193/3)

CAN input signals

Circuit 58 dimmed by instrument cluster
Circuit 50 signal and circuit 15 signal from electronic ignition lock control unit (N73)
Diagnostic communication from front SAM control unit with fuse and relay module

As of facelift 13 the current chassis CAN will be replaced by the chassis CAN 1 (CAN E1). An additional chassis CAN 2 (CAN E2) is used between the instrument cluster (A1) and the front SAM control unit with fuse and relay module (N10/1).

Input and output signals

The transmission mode control unit evaluates the following input signals and issues the corresponding output signals:

Direct input signals
Control Area Network (data bus/CAN bus) (CAN) input signals
CAN output signals
AMG DRIVE UNIT LIN signals

Direct input signals

Circuit 30
Circuit 31
Status of AMG ESP Sport Off button (S193/1)
Status of AMG suspension button (S193/2)

CAN output signals

Transmission mode selection, status of AMG ESP Sport Off button, status of AMG suspension button and status of AMG button, to instrument cluster
Status of ESP Sport Off AMG button to the Premium Electronic Stability Program control unit (N30/7)
Status of AMG suspension button to AIRmatic control unit (N51/3)
Transmission mode selection to fully integrated transmission control unit (Y3/8n4), to the ME-SFI [ME] control unit (N3/10)
Diagnostic communication to front SAM control unit with fuse and relay module

AMG DRIVE UNIT LIN signals

Transmission mode selection "RS", "C", "S", "S +" and "M" on transmission mode rotary switch (S192)

Wiring diagram for drive unit control unit

PE54.21-P-2128-97DAA