Component Descriptions:
Active Safety Control Module
The Active Safety Control Module analyzes data from various modules, sensors, and switches to provide enhanced safety features. 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 Bus to all four radar sensor modules and the Frontview Camera Module. A problem on the Object Bus may result in multiple DTCs since the Active Safety Control Module may not be able to communicate with some or all modules on the bus. See Data Link Communications Description and Operation for more serial data information.
The Active Safety Control Module will alert the driver to a vehicle ahead and provide forward collision alert and lane departure warnings. The alerts and warnings can be user-selected to be audible through the audio system or haptic using the Active Safety Seat. In addition, the Active Safety Control Module will provide driver assistance through integrated brake assist, automatic collision preparation, rear emergency braking, and adaptive cruise control.
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.
- Active Safety Control Module Inputs:
- Park Assist Switch
- Lane Departure Warning Switch
- Forward Collision Alert Switch
- Radar Sensor Module - Short Range Left Front
- Radar Sensor Module - Short Range Right Front
- Radar Sensor Module - Long Range
- Radar Sensor Module - Short Range Rear
- Frontview Camera Module
- Front and Rear Park Assist Module
- Multi-axis Acceleration Sensor
- Wheel Speed Sensors
- Steering Wheel Angle Sensor
- EBCM
- Active Safety Control Module Outputs:
- ECM
- TCM
- EBCM
- ONSTAR
- BCM
- Memory Seat Module (for haptic seat alerts)
- Instrument Cluster (for alerts and heads up display if equipped)
- Radio (for audio alerts)
- Park Assist Switch Indicator
- Lane Departure Warning Switch Indicator
Parking Assist Switch
Parking assist can be activated or deactivated by pressing the parking assist switch. See owners manual for exact location of the park assist switch. The Parking Assist Switch is hard-wired to the Active Safety Control Module. The switch contains a LED that is controlled by the Active Safety Control Module to indicate if the parking assist feature is enabled.
Lane Departure Warning Switch
The Lane Departure Warning feature can be activated or deactivated by pressing the Lane Departure Warning Switch. See owners manual for exact location of the Lane Departure Warning Switch. The Lane Departure Warning Switch is hard-wired to the Active Safety Control Module. The switch contains a LED that is controlled by the Active Safety Control Module to indicate if lane departure warning feature is enabled.
Forward Collision Alert Switch
The Forward Collision Alert System can be adjusted to set the range of the warning by pressing the Forward Collision Alert Switch. The Forward Collision Alert can be set to Far, Medium, Near, or Off. See owners manual for exact location of the Forward Collision Alert Switch. The Forward Collision Alert Switch is hard-wired to the Body Control Module and is communicated to the Active Safety Control Module through serial data.
Radar Sensor Module - Short Range Left Front
The Radar Sensor Module - Short Range Left Front is located behind the front bumper fascia and detects objects out to approximately 30 meters (98 ft). The Radar Sensor Module - Short Range Left Front communicates on the Object Bus to the Active Safety Control Module.
Radar Sensor Module - Short Range Right Front
The Radar Sensor Module - Short Range Right Front is located behind the front bumper fascia and detects objects out to approximately 30 meters (98 ft). The Radar Sensor Module - Short Range Right Front communicates on the Object Bus to the Active Safety Control Module.
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 meters (98-656 ft) range. The Radar Sensor Module - Long Range communicates on the Object Bus to the Active Safety Control Module. In addition to the wiring harness ground, the module is grounded through the mounting bracket.
Radar Sensor Module - Short Range Rear
The Radar Sensor Module - Short Range Rear is located behind the rear bumper fascia and detects objects out to approximately 30 meters (98 ft). The Radar Sensor Module - Short Range Rear communicates on the Object Bus to the Active Safety Control Module. The Radar Sensor Module - Short Range Rear output data, along with the rear park assist output data, is used for rear emergency automatic braking.
Frontview Camera Module
The Frontview Camera Module is located behind the windshield, looking out at the road ahead and detects lane markings and vehicles directly ahead, within a distance of approximately 60 meters (197 ft). The Frontview Camera Module is used for lane departure warning and forward collision alert systems. The Frontview Camera Module communicates on the Object Bus to the Active Safety Control Module.
Front and Rear Park Assist Module
The Front and Rear Park Assist Module uses ultrasonic object sensors located in the front and rear bumper fascia to provide distance measurements to nearby objects. The Front and Rear Park Assist Module sends rear object data to the Active Safety Control Module on the Low Speed GMLAN.