Component Description

Active Safety Control Module 

The active safety control module analyzes data from various modules, sensors and switches to provide enhanced safety features. In addition to providing alerts, the active safety control module will provide driver assistance through integrated brake assist, automatic collision preparation, rear emergency braking and adaptive cruise control. Inputs and outputs can either be connected directly to the active safety control module or communicate though serial data. The active safety control module communicates on a dedicated object detection bus, as well as the chassis expansion bus and low speed GMLAN.

Forward collision alert, lane departure warning and park assist alerts can be user selected to either a haptic signal utilizing the driver's haptic signal motor seat or using beeps through the audio system. This setting can be found in the vehicle personalization menus. See the owner's manual for more detailed information on vehicle personalization.

If there is a DTC set in any of the modules that the active safety control module uses as inputs, it will send a "Service Driver Assist" to the instrument cluster to alert the driver of a problem with the system. No other specific details are given unless the driver attempts to activate a specific system. For example if the driver attempts to turn on lane departure warning, the instrument cluster will display "Lane Departure Unavailable" and the indictor will flash and then go out. A scan tool must be used to read the DTCs that are causing the malfunction to help find the problem. Some of the inputs to the active safety control module can affect forward facing features, rear facing features or all features. Systems to check to determine which area to focus are rear park assist for rear features and lane departure warning and adaptive cruise control for front features. If none of the active safety system features are operative, there may be an issue with another module on the vehicle not providing the proper data to the active safety control module. If all active safety control module features are inoperative, check the Adaptive Cruise Control Inhibit History and Disengage History scan tool data for the reason for the malfunction. Definitions of parameters and suggestions on what to look for can be found in Active Safety Control Module Scan Tool Information . Any item with a "Yes" was the reason why the adaptive cruise control system was inoperative at that time. In some cases verifying the module is the correct part number, has the latest version of software is necessary and is calibrated properly.

• Active safety control module inputs:
  • Vehicle direction camera
  • Radar sensor module - long range
  • Radar sensor module - short range left front
  • Radar sensor module - short range right front
  • Radar sensor module - short range left rear
  • Radar sensor module - short range right rear
  • Front and rear parking assist control module
  • Multi-axis acceleration sensor
  • Steering wheel angle sensor
  • Wheel speed sensors
  • Forward collision alert switch
  • Lane departure warning switch
  • Parking assist switch
• Active safety control module outputs:
  • Body control module
  • Electronic brake control module
  • Engine control module
  • Instrument cluster
  • Head-up display
  • Memory seat module (safety alert seats)
  • Lane departure warning switch indicator
  • Parking assist switch indicator
  • Infotainment system

Vehicle Direction Camera 

The vehicle direction camera is located behind the windshield, looking out at the road ahead and detects lane markings and objects directly ahead, within a distance of approximately 60 meters (197 ft). The vehicle direction camera is used for lane departure warning and forward collision alert systems. The vehicle direction camera communicates with the active safety control module via serial data on the object detection bus.

Using information from the vehicle direction camera, the active safety control module will provide forward collision alert and lane departure warning to the driver when appropriate. The alerts and warnings can be user-selected to be audible through the audio system or haptic using the active safety seat.

Radar Sensor Module - Long Range 

The radar sensor module - long range is located behind the front grille emblem and is used in the 30-200 m (98-656 ft) range. The radar sensor module - long range communicates with the active safety control module via serial data on the object detection bus. In addition to the wiring harness ground, the module is grounded through the mounting bracket.

Radar Sensor Module - Short Range Front 

There are two radar sensor module - short range front located behind the front fascia that detect objects up to approximately 30 meters (98 ft). The radar sensor modules - short range front communicate with the active safety control module via serial data on the object detection bus.

Radar Sensor Module - Short Range Rear 

There are two radar sensor modules - short range rear located behind the rear fascia that detect objects up to approximately 30 meters (98 ft). The radar sensor modules - short range rear communicate with the active safety control module via serial data on the object detection bus.

Front and Rear Parking Assist Control Module 

The front and rear parking assist control module uses ultrasonic object sensors located in the front and rear fascias to provide distance measurements to nearby objects. The front and rear park assist module sends rear object data to the active safety control module via serial data.

Electronic Brake Control Module 

The electronic brake control module performs the braking activities of the active safety system. When requested by the active safety control module, the electronic brake control module will prepare or apply the brakes as necessary in response to an imminent collision.