Component description for electrohydraulic power steering - GF46.30-P-2310LEA
MODEL 221.003 /026 /057 /073 /074 /083 /082 /094 /103 /126 /157 /173 /174 /182 /183 /194
MODEL 221.054 /056 /080 /084 /086 /087 /154 /156 /180 /184 /186 /187 as of Model Year 2010 /YoM 09 model refinement package
MODEL 221.070 /170 except CODE (487) Active Body Control (ABC) as of Model Year 2010 up to Model Year 2011 /YoM 09 model refinement package, /YoM 10
MODEL 221.070 /170 as of Model Year 2011 /YoM 10
MODEL 221.071 /171 except CODE (487) Active Body Control (ABC) as of Model Year 2010 /YoM 09 model refinement package
MODEL 216.373 /374 /394
shown on model 221
Location
The electrohydraulic power steering is located under the right headlamp behind the bumper.
Task
The task of the electrohydraulic power steering is subdivided into the following subtasks:
- Regulation of the power steering pump
- Input and output signals
Regulation of the power steering pump
The power steering pump is regulated by the electrohydraulic power steering depending on requirements (vehicle at standstill, vehicle speed) to match a specified characteristic.
Input and output signals
Direct input signals
- Circuit 30
- Circuit 15
- Circuit 31
Chassis CAN (CAN E) signals
- EZS control unit (N73), battery voltage, on-board electrical system status over interior CAN (CAN B) from front SAM control unit with fuse and relay module (N10/1)
- Steering column tube module control unit (N80), steering angle and steering angle rate of change
- Central gateway control unit (N93), diagnostic communication
Central CAN (CAN F) signals
- Instrument cluster (A1), over chassis CAN and central gateway control unit, transmission of instantaneous vehicle speed from instrument cluster and transmission of signals for instrument cluster messages to the instrument cluster
| Wiring diagram for electrohydraulic power steering | Model 216 with engine 278 | PE46.25-P-2000-97SAA | |
| Model 221 with engine 272, 273, 642 | PE46.25-P-2000-97CAA |