2008 Volvo XC70FACTORY OEM SERVICE PROCEDURE

System Overview: Signals

The table below summarizes the input signals to and output signals from the driver door module (DDM) and passenger door module (PDM). 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:  (supply voltage unless otherwise specified)
  • Lock units (front doors) (6/36, 6/55)
  • Sensor for door mirror position setting (2 per mirror) (6/62-63) (optional equipment)
  • Control panels (3/83, 3/81) (passenger door module (PDM) only)
  • Power windows (front doors) (6/58, 6/60)
  • Lock units (front doors) (6/36, 6/55)
  • Door mirror motors (3 per mirror) (6/62-63)
  • Door mirror heating (6/62-63)
  • Door mirror lighting (6/62-63) (optional equipment)
  • Turn signals in the door mirrors (6/62-63)
  • Control panels (3/83, 3/81) (passenger door module (PDM) only)
Via LIN communication:  Via LIN communication: 
  • Driver's door control panel (3/176)
  • Left rear door module (LDM) (3/128)
  • Right rear door module (RDM) (3/129).
  • Blind spot information system (BLIS) (6/62-63) (optional equipment)
  • Left rear door module (LDM) (3/128)
  • Right rear door module (RDM) (3/129).
  • Blind spot information system (BLIS) (6/62-63) (optional equipment)
Via CAN communication:  Via CAN communication: 
  • Climate control module (CCM) (4/6)
  • Central electronic module (CEM) (4/56)
  • Driver door module (DDM) (3/126) (applies only to passenger door module (PDM))
  • Power seat module (PSM) (3/26).
  • Climate control module (CCM) (4/6)
  • Central electronic module (CEM) (4/56)
  • Passenger door module (PDM) (3/127) (applies only to driver door module (DDM))
Fig 1: Door Module Communication
GLL154475Courtesy of VOLVO CARS CORPORATION
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