Symptom Chart

NOTE: Refer to INTELLIGENT ACCESS (IA) WITH PUSH BUTTON START IGNITION MODES Description and Operation, Intelligent Access with Push Button Start to review the procedures for achieving the various ignition states (ignition OFF, ignition in ACCESSORY, ignition ON, ignition START) on vehicles with this feature.

SYMPTOM CHART

Condition	Possible Sources	Action
No communication with the Dual Climate Controlled Seat Module (DCSM)	Fuse Wiring, terminals or connectors DCSM	REFER to MODULE COMMUNICATIONS NETWORK .
No communication with the Driver Door Module (DDM)	Fuse Wiring, terminals or connectors DDM	REFER to MODULE COMMUNICATIONS NETWORK .
No communication with the Driver Seat Module (DSM)	Fuse Wiring, terminals or connectors DSM	REFER to MODULE COMMUNICATIONS NETWORK .
The power seat is inoperative - driver, without power recline	Fuse Wiring, terminals or connectors Front seat control switch	GO to PINPOINT TEST A .
The power seat is inoperative - driver, with power recline	Fuse Wiring, terminals or connectors Front seat control switch	GO to PINPOINT TEST B .
The power seat is inoperative - driver, with massage	Fuse Wiring, terminals or connectors Front seat control switch	GO to PINPOINT TEST C .
The power seat is inoperative - passenger, without power recline	Fuse Wiring, terminals or connectors Front seat control switch	GO to PINPOINT TEST D .
The power seat is inoperative - passenger, with power recline	Fuse Wiring, terminals or connectors Front seat control switch	GO to PINPOINT TEST E .
The power seat is inoperative - passenger, with massage	Fuse Wiring, terminals or connectors Front seat control switch	GO to PINPOINT TEST F .
The power seat does not move horizontally/vertically - driver	Wiring, terminals or connectors Front seat motors Front seat control switch	GO to PINPOINT TEST G .
The power seat does not move horizontally/vertically/recline - driver	Wiring, terminals or connectors Front seat motors Front seat control switch	GO to PINPOINT TEST H .
The power seat does not move horizontally/vertically/recline - driver, with massage	Wiring, terminals or connectors Front seat motors Front seat control switch	GO to PINPOINT TEST I .
The power seat does not move horizontally/vertically - passenger	Wiring, terminals or connectors Front seat motors Front seat control switch	GO to PINPOINT TEST J .
The power seat does not move horizontally/vertically/recline - passenger	Wiring, terminals or connectors Front seat motors Front seat control switch	GO to PINPOINT TEST K .
The power seat does not move horizontally/vertically/recline - passenger, with massage	Wiring, terminals or connectors Front seat motors Front seat control switch	GO to PINPOINT TEST L .
The memory seat is inoperative/does not operate correctly - does not operate horizontally/vertically/recline, without massage	Wiring, terminals or connectors Seat control switch DSM	GO to PINPOINT TEST M .
The memory seat does not operate correctly - does not operate using the memory SET switch, without massage	Wiring, terminals or connectors Memory SET switch Seat track Seat recliner motor Medium Speed Controller Area Network (MS-CAN) communication fault DDM DSM	GO to PINPOINT TEST N .
The memory seat is inoperative/does not operate correctly - does not operate horizontally/vertically/recline, with massage	Wiring, terminals or connectors Seat control switch DSM	GO to PINPOINT TEST O .
The memory seat does not operate correctly - does not operate using the memory SET switch, with massage	Wiring, terminals or connectors Memory SET switch Seat track Seat recliner motor MS-CAN communication fault DDM DSM	GO to PINPOINT TEST P .
The memory seat does not operate correctly - the seat moves in one second intervals	Wiring, terminals or connectors DSM	REFER to the Driver Seat Module (DSM) DTC Chart .
The memory seat does not operate correctly - does not operate using the remote transmitter	Wiring, terminals or connectors Keyless entry transmitter DSM	VERIFY the Remote Keyless Entry (RKE) transmitter is operating correctly and is associated to a memory position. REFER to Owner's Literature or HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS for information on associating a RKE transmitter. RUN the DSM Self Test and REFER to the Driver Seat Module (DSM) DTC Chart to diagnose any DTCs retrieved.
Easy exit/easy entry is inoperative/does not operate correctly	Wiring, terminals or connectors Key in ignition switch Instrument Cluster (IC) module DSM	GO to PINPOINT TEST Q .
The power lumbar is inoperative - driver	Wiring, terminals or connectors Seat control switch Power lumbar motor assembly	GO to PINPOINT TEST R .
The power lumbar is inoperative - passenger	Wiring, terminals or connectors Seat control switch Power lumbar motor assembly	GO to PINPOINT TEST S .
The power lumbar is inoperative - with massage	Wiring, terminals or connectors Fuse Seat control switch Power lumbar assembly with massage	GO to PINPOINT TEST T .
The power lumbar does not operate correctly - with massage	Wiring, terminals or connectors Seat control switch Power lumbar assembly with massage Massage seat cushion	GO to PINPOINT TEST U .
The heated seat is inoperative/does not operate correctly - driver	Fuse Wiring, terminals or connectors Heater feed circuit short to battery, ground or open Sensor circuit short to battery, ground or open Heater mat Heated seat module Front Controls Interface Module (FCIM) HVAC module	GO to PINPOINT TEST V .
The heated seat is inoperative/does not operate correctly - front passenger	Fuse Wiring, terminals or connectors Heater feed circuit short to battery, ground or open Sensor circuit short to battery, ground or open Heater mat Heated seat module Front Controls Interface Module (FCIM) HVAC module	GO to PINPOINT TEST W .
The heated seat does not operate correctly - seat does heat but the heated seat indicator does not illuminate when pressed, front	Wiring, terminals or connectors Heated seat module FCIM	GO to PINPOINT TEST X .
Both heated seats only operate in one mode - only one indicator illuminates	Heated seat module	The heated seat module may have been auto-programmed for use with a heated seat system using dual contact switches and requires a reset. CARRY OUT the HEATED SEAT MODULE RESET procedure. REFER to HEATED SEAT MODULE RESET . TEST the system for normal operation.
The heated seat is inoperative/does not operate correctly - left rear	Fuse Wiring, terminals or connectors Heated seat switch Heater mat(s) Heated seat module	GO to PINPOINT TEST Y .
The heated seat is inoperative/does not operate correctly - right rear	Fuse Wiring, terminals or connectors Heated seat switch Heater mat(s) Heated seat module	GO to PINPOINT TEST Z .
The heated seat does not operate correctly - left rear seat does heat but the heated seat indicator does not illuminate when pressed	Wiring, terminals or connectors Heated seat switch Heated seat module	GO to PINPOINT TEST AA .
The heated seat does not operate correctly - right rear seat does heat but the heated seat indicator does not illuminate when pressed	Wiring, terminals or connectors Heated seat switch Heated seat module	GO to PINPOINT TEST AB .
The heated seat does not operate correctly - left rear heated seat indicator is always on	Wiring, terminals or connectors Heated seat module	GO to PINPOINT TEST AC .
The heated seat does not operate correctly - right rear heated seat indicator is always on	Wiring, terminals or connectors Heated seat module	GO to PINPOINT TEST AD .
All climate controlled seats are inoperative - switch indicators may or may not illuminate	Fuse Wiring, terminals or connectors MS-CAN communication fault Dual Climate Controlled Seat Module (DCSM) HVAC module FCIM	GO to PINPOINT TEST AE .
A single climate controlled seat is inoperative - switch indicators may or may not illuminate	Wiring, terminals or connectors HVAC module FCIM DCSM	NOTE: If a fault occurs setting a DTC specific to only one climate controlled seat, the DCSM will disable only the affected seat outputs and allow the other seat to remain operational. CHECK for DTCs specific to the affected climate controlled seat and, if a DTC is present, REFER to the Dual Climate Controlled Seat Module (DCSM) DTC Chart . GO to PINPOINT TEST AF .
A single climate controlled seat does not operate correctly - poor airflow or cooling/heating performance	Excessive sunload or extreme cabin temperatures Incorrectly installed TED Airflow blockage Disconnected air duct	NOTE: If a fault occurs setting a DTC specific to only one climate controlled seat, the DCSM will disable only the affected seat outputs and allow the other seat to remain operational. CHECK for DTCs specific to the affected climate controlled seat and, if a DTC is present, REFER to the Dual Climate Controlled Seat Module (DCSM) DTC Chart . GO to PINPOINT TEST AG .