Switches On Keypad

Fig 1: Identifying Infotainment Control Module

Courtesy of VOLVO CARS OF NORTH AMERICA.

In principle, the keypad on the climate control module (CCM) can be divided into an upper and lower section. The switches on the lower section directly affect the climate control module (CCM) (3/112) by activating the following functions. For example:

• climate control
• activation of the seat heaters
• etc.

The upper section covers functions of the infotainment system. When these switches are activated, the climate control module (CCM) transmits a signal to the infotainment control module (ICM) (16/1) via the controller area network (CAN). When switches on the keypad are activated, the climate control module (CCM) will light any LEDs, even if the function is not available for any reason.