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Seat Heaters

Fig 1: Identifying Seat Heaters
GLL153597Courtesy of VOLVO CARS CORPORATION

The system for the seat heaters consists of three different parts: 

The seat heating module (SHM) is under the left and right-hand front seat. As an option, a Seat heating module (SHM) is also available, which is located under the left, respectively, right-hand rear seats. The heater pads are in the seat and backrest. The temperature sensor is in the seat.

The heater pad and temperature sensor are directly connected to the seat heating module (SHM). The seat heating module (SHM) communicates with the climate control module (CCM) via a LIN bus.

There are diagnostics for the seat heating module (SHM).