PINPOINT TEST N : A Single Climate Controlled Seat is Inoperative: Notes

Refer to Climate Controlled Seats for schematic and connector information.

Normal Operation and Fault Conditions 

The DCSM is supplied voltage at all times, but the climate controlled seat system only operates with the engine running. The system can be operated with the ignition ON engine OFF by using a diagnostic scan tool to bypass the climate controlled seat buttons on the touchscreen interface. When commanding a heat or cool mode operation in this manner, it only operates in 15-second intervals. Both voltage supply circuits are spliced together internal to the DCSM, so if one circuit becomes open, both seats can still be operated. However, if a fault occurs setting a DTC specific to either climate controlled seat, only the affected seat is disabled by the DCSM.

When the climate control seat buttons are activated on the touchscreen interface, this initiates the CAN communication to request climate controlled seat operation. Refer to Seating - Climate Controlled , Network Message Chart.