Control modules in the Control area network (CAN)
The number of control modules in the CAN varies depending on the level of equipment, the vehicle model and the structure week.
NOTE:
To troubleshoot respective CAN-net, see appropriate diagnostic service information for CAN-related diagnostic trouble codes for Central electronic module (CEM). For example, choose any of CEM-DF01 - DF17 depending on CAN-net.
| Explanation | ||
| = | CAN Low speed section (125 kbit/s). Contains the control modules located in the passenger compartment and cargo compartment. | |
| = | CAN High speed section (500 kbit/s). Contains the control modules located in the engine compartment. | |
| Slave control module | = | A control module with low computing power which is connected to a "master control module" and which only operates on commands from the master control module. |
| Option | = | Accessories installed at the factory to order, when purchasing a new car. |
| Accessories | = | Aftermarket installation. |
| Control module | Name/ Function | Network | Miscellaneous |
| Additive dosing module (
) Controls the dosage of the fuel additive to the main fuel tank (diesel). |
Diesel engines only | ||
| Accessory electronic module (
) Controls certain accessory functions for the vehicle. The interface for a non-Volvo aftermarket alarm for example. |
Accessories | ||
| Brake control module (
) Regulates brake system functions ( ) |
Has body sensor cluster stability sensor ( ) as slave module. | ||
| Climate control module (
) Controls the climate control system functions and communicates with the other modules via the network low speed sector. |
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| Central electronic module (
) Is the network main control module and the interface between the high and low speed sides. The control module has an overall function in the electrical system. |
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| Combustion preheater module (
) Controls the parking heater function. |
Option /accessory. Market dependent |
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| Convertible roof module (
) Controls the function of the retractable roof. |
only | ||
| Driver's door module (
) Controls the driver's door functions and certain functions in the other doors. |
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| Differential electronic module (
) Controls four wheel drive engagement and communicates with the other modules via the high speed side of the network. |
Vehicles with only. | ||
| Driver information module (
) Controls combined instrument panel functions. The control module contains one of the two terminal resistors for . |
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| Engine control module (
) Controls engine functions. The control module contains one of the two terminal resistors for . |
Different versions depending on the engine alternative. | ||
| Electronic power steering module (
) Controls power steering function. |
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| Infotainment control module (
) Controls audio and navigation functions. The control module is also the main control module in the MOST network. |
(MOST) | For further information regarding the MOST network, see Design and Function, MOST. | |
| Keyless vehicle module (
) Controls functions for the keyless entry system. |
Option | ||
| Parking assistance module (
) Controls functions for the parking assistance system. |
Option /accessory | ||
| Passenger door module (
) Controls functions in the passenger side door. |
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| Phone module (
) Controls phone functions. Part of the infotainment system. |
(MOST) | Option /accessory. Available in various configurations. |
|
| Power seat module (
) Controls the positions and functions of the driver's seat. |
Standard/ option
NOTE:
The power seat module ( ) does not control seat heating or the SIPS airbag function. |
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| Power seat left module (
) Controls the function for electrically operated left front seat. |
Option in
.
NOTE:
The power seat left module ( ) does not control seat heating or the SIPS airbag function. |
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| Power seat right module (
) Controls the function for electrically operated right front seat. |
Option in
.
NOTE:
The power seat right module ( ) does not control seat heating or the SIPS airbag function. |
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| Supplemental restraint system module (
) Controls the vehicles supplemental restraint system. The control module contains one of the two terminal resistors for . |
Has occupant weight sensor ( ) as slave module to check whether anyone is sitting in the passenger seat. | ||
| Steering wheel module (
) Receives signals from the switch in the steering wheel and from the controls around the steering wheel. The control module contains one of two terminal resistors for . |
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| Transmission control module (
) Controls the automatic transmission function. |
Vehicles with automatic transmission only. | ||
| Trailer module (
) Controls trailer functions. |
Option Applies only to cars with a tow hitch. |