Control Modules That Communicate Via Lin

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2014 Volvo XC90, 2013 Volvo XC90, 2012 Volvo XC90, 2011 Volvo XC90, and 2010 Volvo XC90. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Control Modules That Communicate Via LIN

Courtesy of VOLVO CARS CORPORATION

NOTE:

The illustration above and the table below is an example that shows model year 2007. All other information in the document is general and applies to all model years.

Control module	Name/ Function	Connected to/Master node	Other
ACM	Alternator control module (ACM) Controls charge regulation of the battery.	Engine control module (ECM). Also diagnosed by the Central electronic module (CEM).
AQS	Air quality sensor (AQS) Measures the particle content in the air into the climate system.	Climate control module (CCM)	The Climate control module (CCM) uses this signal as a basis for control of the damper for recirculation.
CPM	Combustion preheater module (CPM) Petrol driven engine and passenger compartment heater.	Central electronic module (CEM)
DMM	Damper motor module (DMM) Regulates the air flow in the passenger compartment, temperature between the right and left sides as well as recirculation.	Climate control module (CCM)	The number of damper motors varies depending on the equipment level and whether the vehicle is right or left hand drive.
GSM	Gear selector module (GSM) Provides input signals to the Transmission control module (TCM), about the position of the gear shift.	Transmission control module (TCM)	Vehicles with automatic transmission only.
ISM	Inclination sensor module (ISM) Detects changes to the vehicle incline when the alarm is activated.	Rear electronic module (REM)
LCM	Left camera module (LCM)	Driver door module (DDM) or Passenger door module (PDM) depending on whether the vehicle is right or left hand drive.	Component in the BLIS system.
LSM	Light switch module (LSM) Sends signals to the Central electronic module (CEM) concerning settings for the exterior and instrument lighting.	Central electronic module (CEM)
OWS	Occupant weight sensor (OWS) Used as an input signal to indicate deactivation of the front passenger airbag.	Supplemental restraint system module (SRS)
RCM	Right camera module (RCM)	Driver door module (DDM) or Passenger door module (PDM) depending on whether the vehicle is right or left hand drive.	Component in the BLIS system.
RSM	Rain sensor module (RSM) Detects whether there is water on the windscreen.	Upper electronic module (UEM)	Used to control the automatic wiper function.
SCM	Siren control module (SCM) Controls the siren function.	Upper electronic module (UEM)
SHM	Seat heating module (SHM), driver's side and Seat heating module (SHM), passenger-side.	Climate control module (CCM)
SRM	Sun roof module (SRM) Control sun roof functionality.	Upper electronic module (UEM)
SWSL	Steering wheel switch left (SWSL)	Central electronic module (CEM)	Concerns the steering wheel buttons for control of radio and telephone functions.
SWSR	Steering wheel switch right (SWSR)	Central electronic module (CEM)	Concerns the steering wheel buttons for control of radio and telephone functions.