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Home >> Volvo >> 2009 >> XC70 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Electrical Modules And Components - Design And Function - 4 Of 5 >> Parking Assistance Camera (PAC) (2012) >> System Overview >> Signals
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System Overview: Signals

The table below summarizes the input signals to and output signals from the Parking Assistance Camera (PAC). The signal types are divided into directly connected signals, LIN communication and controller area network (CAN) communication. The illustration below displays the same information with the Volvo component designations.

Input signals: Output signals:
Directly connected:  Directly connected: 
  • Rear camera (27/6)
  • Infotainment control module (ICM) (3/281) video signal to screen
Via LIN communication:  Via LIN communication: 
  • Rear camera (27/6)
  • Rear camera (27/6)
Via Controller Area Network (CAN) communication:  Via Controller Area Network (CAN) communication: 
  • Steering wheel angle sensor module (SAS) (3/130)
  • Central electronic module (CEM) (4/56)
  • Brake control module (BCM) (4/16)
  • Infotainment control module (ICM) (3/281)
  • Climate control module (CCM) (4/6)
  • Parking Assistance Module (PAM) (4/86)
  • Trailer module (TRM) (4/110) (accessory)
  • Transmission Control Module (TCM) (4/28)
  • Infotainment control module (ICM) (3/281)
Fig 1: Identifying Parking Assistance Camera (PAC) Signal Types
GLL180097Courtesy of VOLVO CARS CORPORATION