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Home >> Volvo >> 2008 >> V70 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Charging System, Electrical Control Modules, Engine Control Module (ECM) - Design And Function >> Park Brake Module (PBM) (2008-10) >> System Overview >> Signals
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System Overview: Signals

The table below summarizes the input signals to and output signals from the Park Brake Module (PBM). The signal types are divided into directly connected signals and CAN communication. The graphic below displays the same information with the Volvo component designations.

Input Signals Output Signals
Directly connected:  Directly connected: 
  • Parking brake switch (3/272)
  • Electric motor right brake caliper (6/147)
  • Electric motor left brake caliper (6/146)
Via Controller Area Network (CAN) communication:  Via Controller Area Network (CAN) communication: 
  • Central electronic module (CEM) (4/56)
  • Brake control module (BCM) (4/16)
  • Engine control module (ECM) (4/46)
  • Transmission Control Module (TCM) (4/28)
  • Supplemental Restraint System Module (SRS) (4/9)
  • Forward Sensing Module (FSM) (4/80) (applies to vehicles equipped with Forward Sensing Module (FSM))
  • Central electronic module (CEM) (4/56)
  • Brake control module (BCM) (4/16)
  • Driver information module (DIM) (5/1)
  • Parking Assistance Module (PAM) (4/86)
  • Forward Sensing Module (FSM) (4/80) (applies to vehicles equipped with Forward Sensing Module (FSM))
  • Engine control module (ECM) (4/46)
Fig 1: Identifying Input Signals And Output Signals From Park Brake Module (PBM)
GLL173727Courtesy of VOLVO CARS CORPORATION