Pinpoint Test M : One Or Both Climate Controlled Seats Are Inoperative

M1 CHECK FOR SCME (FRONT SEAT CLIMATE CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, perform the SCME self-test.

Were any Diagnostic Trouble Codes (DTCs) retrieved?

Yes	GO to the DTC Chart: SCME .

No	If the diagnostic scan tool did not communicate to the SCME, REFER to: COMMUNICATIONS NETWORK - 2.0L DURATEC - HYBRID (103KW 140PS) (UA) . Otherwise, GO to M2

M2 CHECK OPERATION OF THE SCME (FRONT SEAT CLIMATE CONTROL MODULE) USING PARAMETER IDENTIFICATIONS (PIDS)

NOTE: This step verifies the SCME is able to receive and process inbound command messages from the network and demonstrate if the SCME is operational. This indicates the FDIM or FCIM may not be sending the commands correctly.
- Using a diagnostic scan tool, view the SCME Parameter Identifications (PIDs):
  Driver Seat
  - Seat Cushion Temperature - Driver (SEAT_CSH_TMP_D)
  - Seat Back Temperature - Driver (SEAT_BK_TMP_D)
  - Left Seat Back Heating Control (HEAT_BACK_L)
  - Left Seat Cushion Heating Control (HEAT_CUSH_L)
  Front Passenger Seat
  - Seat Cushion Temperature - Passenger (SEAT_CSH_TMP_P)
  - Seat Back Temperature - Passenger (SEAT_BK_TMP_P)
  - Right Seat Back Heating Control (HEAT_BACK_R)
  - Right Seat Cushion Heating Control (HEAT_CUSH_R)
- NOTE: The SCME active commands are limited to 15 seconds in the ON state.
  
  Operate the affected climate controlled seat using the active command while monitoring the appropriate Parameter Identifications (PIDs) for that seat.
  - When the command is in process the blower motor temperature Parameter Identifications (PIDs) on the affected seat should momentarily increase. If no temperature increase is noted, verify the cushion/backrest blower filter is unobstructed and repeat the active command while physically monitoring the blower for fan movement.
Do the PID states or cushion/backrest blower movement indicate climate controlled seat operation when using the active command?

Yes GO to M3

No INSTALL a new DSM. REFER to: Driver Front Seat Module (DSM) .

M3 USE THE FCIM (FRONT CONTROLS INTERFACE MODULE) BUTTONS AND MONITOR THE SCME (FRONT SEAT CLIMATE CONTROL MODULE) PID (PARAMETER IDENTIFICATION) FOR A RESPONSE

Using a diagnostic scan tool, view the SCME Parameter Identifications (PIDs):
- Climate Controlled Seat System State - Driver (CLIMATE_SEAT_D)
- Climate Controlled Seat System State - Passenger (CLIMATE_SEAT_P)

Start the engine.

NOTE: Operation of the climate controlled seats repeatedly on and off or repeatedly switching between heat and cool modes may cause SCME Diagnostic Trouble Codes (DTCs) to set, disabling one or both seat systems and may require Diagnostic Trouble Codes (DTCs) to be cleared before seat operation may continue. It is recommended to allow time between modes for seat temperatures to return toward ambient temperatures before continuing.

Attempt to operate the affected climate controlled seat in all modes using the appropriate buttons on the FCIM while monitoring the SCMEPID CLIMATE_SEAT_D or CLIMATE_SEAT_P.

Do all the PID states match the climate controlled seat settings selected on the FCIM?

Yes	To diagnose the inoperative touchscreen button(s), Refer to the appropriate Information and Entertainment System article for the procedure.

No	If only the climate seat functionality is inoperative, Refer to FCIM Guided Routine . If other features of the FCIM are also inoperative, DIAGNOSE the FCIM concern. Refer to the appropriate Information and Entertainment System article for the procedure.