Module-Heated Seats: Operation

The heated seat module operates on fused battery current received from the ignition switch. The module is grounded to the body at all times through the electrical connector. Inputs to the module include Controller Area Network (CAN) data bus messages and standard hardwired 12volt power and ground. In response to the CAN inputs the heated seat module will control the battery current to the appropriate heated seat elements.

When a heated seat switch CAN data bus signal is received by the heated seat module, the module energizes the selected heated seat element. The Low heat set point is about 38C (100.4°F), and the High heat set point is about 42C (107.6°F).

If the heated seat module detects a heated seat element OPEN or SHORT circuit, it will record and store the appropriate diagnostic trouble code (DTC).