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System Overview: Signals

The table below summarizes the input signals to and output signals from the climate control module (CCM). The signal types are divided into directly connected signals, LIN and CAN communication. The illustration below displays the same information with the Volvo component designations.

Input signals Output signals
Directly connected:  Directly connected: 
  • Blower fan motor (6/28), diagnostic signal
  • Evaporator temperature sensor (7/41), control signal.
  • Blower fan motor (6/28), control signal.
Via LIN communication:  Via LIN communication: 
  • Damper motor module (DMM) for ECC (6/48, 6/95-96, 6/102-103)
  • Damper motor module (DMM) for MCC (6/48, 6/69, 6/95-96)
  • Air quality sensor (AQS) (7/159)
  • Seat heating module (SHM), passenger side (9/13)
  • Seat heating module (SHM), driver's side (9/12).
  • Damper motor module (DMM) for ECC (6/48, 6/95-96, 6/102-103)
  • Damper motor module (DMM) for MCC (6/48, 6/69, 6/95-96)
  • Air quality sensor (AQS) (7/159)
  • Seat heating module (SHM), passenger side (9/13)
  • Seat heating module (SHM), driver's side (9/12).
Via Controller Area Network (CAN) communication:  Via Controller Area Network (CAN) communication: 
  • Central electronic module (CEM) (4/56)
  • Engine control module (ECM) (4/46)
  • Rear electronic module (REM) (4/58)
  • Brake control module (BCM) (4/16)
  • Driver door module (DDM) (3/126)
  • Passenger door module (PDM) (3/127)
  • Upper electronic module (UEM) (4/70)
  • Steering wheel module (SWM) (3/254).
  • Central electronic module (CEM) (4/56)
  • Driver door module (DDM) (3/126)
  • Passenger door module (PDM) (3/127)
  • Brake control module (BCM) (4/16)
  • Rear electronic module (REM) (4/58)
  • Engine control module (ECM) (4/46).
Fig 1: Identifying Volvo Component Designations (Climate Control)
GLL146624Courtesy of VOLVO CARS CORPORATION