Parking System Control Unit, Basic Function - GF54.65-P-9890A

Model All (4xWD) 

With Code 235 (Active Parking Assist) 

Model All (CAR) 

With Code 235 (Active Parking Assist) 

Overview 

This document contains information on:

• General 
• Function 

General 

The parking system control unit evaluates the information from the distance sensors in the front and rear areas of the vehicle. The distance sensors detect obstacles in front of and behind the vehicle. Whenever an obstacle is detected, the parking system control unit generates a warning according to the distance between the vehicle and the obstacle.

The parking system control unit searches for suitable parking spaces based on the side distance sensors at the front. Detected parking spaces and any usable parking options are displayed to the driver.

The parking system control unit calculates a suitable path (trajectory) and provides assistance when entering and exiting a parking space. For vehicles equipped with a trailer hitch, the parking system control unit assists the driver during reverse maneuvering with a trailer (as from market launch of model 167). The parking system control unit is connected to the network architecture of the vehicle.

Function 

To implement the functions, the parking system control unit processes information such as the following:

• Engine/drivetrain operating status
• Terminal status of terminal 15
• Wheel speed and wheel rotation direction
• Engaged gear (vehicles with manual transmission) or engaged drive range (vehicles with automatic transmission)
• Acceleration/yaw rate
• Status of Electronic Stability Program (ESP®)
• Electric power steering status
• Rack position of electric power steering
• Front wheel angle
• Status of parking space selection
• Status of parking brake, brake, ESP®
• Trailer operation status (vehicles with trailer hitch)
• Status of trailer hitch turning angle sensor (vehicles with trailer maneuvering stabilization)
• Blind Spot Assist warning (vehicles with blind spot monitoring)
• Blind Spot Assist braking request (vehicles with blind spot monitoring)
• Steering wheel angle and steering wheel velocity
• Vehicle level (vehicles with air suspension)
• System status
• Accelerator pedal position
• Status of surround lighting (vehicles with Parking Package)
• Status of outside mirror housings (vehicles with Mirror Package)

The parking system control unit evaluates these input parameters and sends the following information and requests:

• Status of parking system
• Information on distance to obstacle (remaining distance to obstacle)
• Requests:
  • Engage drive range (vehicles with automatic transmission).
  • Increase/reduce braking torque.
  • Control mode (speed control)
  • Adjust front wheel angle (steering movement).
  • Fold in outside mirror housings (vehicles with Mirror Package).
  • Actuate rear camera cover.
  • Switch on surround lighting (vehicles with Parking Package).
  • Emit warning tones, system messages or warning messages.

	Component descriptions
	Parking system control unit, component description	Model 223	GF54.65-P-5004A
		Model 243	GF54.65-P-5004B
		Model 206	GF54.65-P-5004C
		Model 297	GF54.65-P-5004D
		Model 295	GF54.65-P-5004E
		Model 232	GF54.65-P-5004F
		Model 296	GF54.65-P-5004G
		Model 254	GF54.65-P-5004H
		Model 214	GF54.65-P-5004K
		Model 118 as of model year 2023 Model 177, 247 as of model year 2022	GF54.65-P-5004L
		Model 167 as of model year 2023	GF54.65-P-5004M
		Model 294	GF54.65-P-5004N
		Model 192	GF54.65-P-5004R
		Model 236	GF54.65-P-5004S
		Model 465	GF54.65-P-5004T
	Parking system speaker, component description	Model 223	GF54.65-P-5008A
		Model 243	GF54.65-P-5008B
		Model 206	GF54.65-P-5008C
		Model 297	GF54.65-P-5008D
		Model 295	GF54.65-P-5008E
		Model 232	GF54.65-P-5008F
		Model 296	GF54.65-P-5008G
		Model 254	GF54.65-P-5008H
		Model 214	GF54.65-P-5008K
		Model 118 as of model year 2023 Model 177, 247 as of model year 2022	GF54.65-P-5008L
		Model 167 as of model year 2023	GF54.65-P-5008M
		Model 294	GF54.65-P-5008N
		Model 192	GF54.65-P-5008R
		Model 236	GF54.65-P-5008S
		Model 465	GF54.65-P-5008T