Heated/Cooled Seats Inoperative

HEATED/COOLED SEATS INOPERATIVE

DIAGNOSTIC AIDS
In order to perform valid tests when diagnosing the climate control seat system, the ignition must be cycled OFF then ON between each test in order to reset the climate control seat module.

A short to ground in the heated/cool ventilation module HEAT control circuit will open the HTDST fuse when the heat mode is selected, and the heat mode will be inoperative. However, when the COOL mode is selected, the system will operate normally.

A short to ground in the heated/cool ventilation module COOL control circuit will open the HTDST fuse when the cool mode is selected and the system will be inoperative. However, when the HEAT mode is selected, the system operate normally.

TEST DESCRIPTION

Steps 1 - 9:

Steps 10 - 18:

Steps 19 - 31:

Steps 32 - 46:

Steps 47 - 48:

The number below refer to the step numbers on the diagnostic table.
3. This step determines if the climate control seat module turns ON by using the current state of the blower motor. While performing this test, pay close attention to the blower motor because it may operate at a low RPM and for a short period of time. Listen for a low audible noise or feel for light air from the exhaust duct.