ABC control unit, component description - GF32.50-P-4501SX

MODEL 216.3 up to Model Year 8

MODEL 221.0/1 with CODE (487) Active Body Control (ABC) up to Model Year 8

Illustrated on model 221

Fig 1: Identifying ABC Control Unit - Shown On Model 221

Courtesy of MERCEDES-BENZ USA

Location

The ABC control unit is located under the accessories plate in the front passenger footwell.

General

The ABC control unit is the master control unit of the Active Body Control (ABC) function and is connected to the chassis CAN for the exchange of data.

Discrete inputs

Circuit 30
Circuit 31
ABC pressure sensor (B4/5)
Left front ABC pressure sensor (B4/8)
Right front ABC pressure sensor (B4/9)
Left rear ABC pressure sensor (B4/10)
Right rear ABC pressure sensor (B4/11)
Left rear level sensor (B22/7)
Left front level sensor (B22/8)
Right front level sensor (B22/9)
Right rear level sensor (B22/10)
Left front body lateral acceleration sensor (B24/3)
Right front body acceleration sensor (B24/4)
Right rear body lateral acceleration sensor (B24/6)
ABC lateral acceleration sensor (B24/12)

Discrete outputs

ABC front axle valve unit (Y36/1)
ABC rear axle valve unit (Y36/2)
ABC suction restrictor valve (Y86/1)

The ABC control unit is configured automatically via the chassis CAN (engine variants, model series variants, national variants and modification year variants).