LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2021 >> Terrain SLT, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Parking Assistance Systems >> Diagnostic Information and Procedures >> DTC B0958, B0959, B0960, or B0961 >> Circuit/System Description

Circuit/System Description

For an overview of the component/system, refer to Parking Assist Description and Operation (UD5) , or Parking Assist Description and Operation (UFQ) , or Parking Assist Description and Operation (UD7) 

Circuit Description
Reference Voltage Regulated voltage supplied by the control module.
Signal The control module input circuit has an internal resistance connected to 9 V.
Low Reference Grounded through the control module.
Component Description
K182 Parking Assist Control Module The assembly has several functions:
  • { If equipped } Front Parking Assist
  • Rear Parking Assist
B306 Parking Assist Sensor The sensors can send and receive ultrasonic sounds. First a short sound is emitted. If there is an obstacle in front of the sensor, the obstacle will reflect the sound back to the sensor. The time difference between sending and receiving is the measure for the distance to the obstacle.