| No communication with the driver seat module (DSM) | Fuse Circuitry DSM | For vehicles equipped with seat side air bags, DEPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . DISCONNECT driver seat side air bag C327 and CONNECT restraint system diagnostic tool 418-133 to driver seat side air bag C327. CONNECT the battery ground cable. |
| CHECK DSM C3299a pin 2, circuit SBB32 (VT/RD) and C3299c pin 1, circuit SBB15 (WH/RD) for greater than 10 volts; REPAIR as needed. CHECK DSM C3299a pin 1, circuit GD126 (BK/WH) and C3299c pin 13, circuit GD126 (BK/WH) for less than 5 ohms to ground; REPAIR as needed. If OK, REFER to MODULE COMMUNICATIONS NETWORK . For vehicles equipped with seat side air bags, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from driver seat side air bag module C327 and CONNECT driver seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . |
| No communication with the module - unable to carry out on-demand self test with the DSM | Circuitry DSM | REFER to MODULE COMMUNICATIONS NETWORK . |
| No communication with the dual climate control seat module (DCSM) | Fuse Circuitry DCSM | DEPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM . DISCONNECT passenger seat side air bag module C313. CONNECT restraint system diagnostic tool 418-133 to passenger seat side air bag module C313. CONNECT the battery ground cable. DISCONNECT and CHECK DCSM C3305a-E, circuit SBB11 (BU/RD), harness side and DCSM C3305a-F, circuit SBB12 (GN/RD), harness side for greater than 10 volts and DCSM C3305a-M, circuit GD139 (BK/YE), harness side for less than 5 ohms to ground and REPAIR as needed. If OK, REFER to MODULE COMMUNICATIONS NETWORK to diagnose the MS-CAN communication bus concern. Once the repair is complete, DISCONNECT the battery ground cable. DISCONNECT the restraint system diagnostic tool from passenger seat side air bag module C313 and CONNECT the passenger seat side air bag module C313. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . |
| The power seat is inoperative - driver (with power recliner) | Fuse Circuitry Front seat control switch | GO to PINPOINT TEST A . |
| The power seat is inoperative - driver (without power recliner) | Fuse Circuitry Front seat control switch | GO to PINPOINT TEST B . |
| The power seat is inoperative - passenger (with power recliner) | Fuse Circuitry Front seat control switch | GO to PINPOINT TEST C . |
| The power seat is inoperative - passenger (without power recliner) | Fuse Circuitry Front seat control switch | GO to PINPOINT TEST D . |
| The power seat moves but is loose | Fastening hardware Seat track | GO to PINPOINT TEST E . |
| The power seat moves but is noisy | Seat track | GO to PINPOINT TEST F . |
| The power seat does not make full travel | Seat track obstructed Seat track | GO to PINPOINT TEST G . |
| The power seat does not move horizontally/vertically/recline - driver | Circuitry Front seat motors Front seat control switch | GO to PINPOINT TEST H . |
| The power seat does not move horizontally/vertically - driver (without power recliner) | Circuitry Front seat motors Front seat control switch | GO to PINPOINT TEST I . |
| The power seat does not move horizontally/vertically/recline - passenger | Circuitry Front seat motors Front seat control switch | GO to PINPOINT TEST J . |
| The power seat does not move horizontally/vertically - passenger (without power recline) | Circuitry Front seat motors Front seat control switch | GO to PINPOINT TEST K . |
| The memory seat is inoperative | Circuitry Seat control switch DSM | GO to PINPOINT TEST L . |
| The memory seat does not operate correctly - does not operate using the memory set switch | Circuitry Memory set switch DSM | GO to PINPOINT TEST M . |
| The memory seat does not operate correctly - the seat moves in one second intervals | Circuitry DSM | REFER to the DTC INDEX . |
| The memory seat does not operate correctly - the seat does not move to the correct memory position | Circuitry Memory set switch DSM Seat track | REFER to the DTC INDEX . |
| The memory seat does not operate correctly - does not operate using the remote transmitter | Circuitry DSM Keyless entry transmitter | REFER to the DTC INDEX . |
| Easy exit/easy entry is inoperative/does not operate correctly | Circuitry Key in ignition switch ICM DSM. | GO to PINPOINT TEST N . |
| Easy exit/easy entry is not operating correctly - the seat does not remain in the easy entry position with the ignition key removed | DSM | CONNECT a scan tool and CARRY OUT the DSM self-test. If any DTC is present, REFER to the DRIVER SEAT MODULE (DSM) DIAGNOSTIC TROUBLE CODE INDEX . Otherwise, CARRY OUT programmable module installation (PMI) on the DSM. REFER to MODULE CONFIGURATION . TEST the system for normal operation. REPEAT the self-test. CLEAR the DTCs. |
| The power lumbar is inoperative - driver | Circuitry Seat control switch Power lumbar motor assembly | GO to PINPOINT TEST O . |
| The power lumbar is inoperative - passenger | Circuitry Seat control switch Power lumbar motor assembly | GO to PINPOINT TEST P . |
| The heated seat is inoperative - driver | Fuse Circuitry Heated seat switch Seat cushion heater mat Seat backrest heater mat Heated seat module | GO to PINPOINT TEST Q . |
| The heated seat is inoperative - passenger | Fuse Circuitry Heated seat switch Seat cushion heater mat Seat backrest heater mat Heated seat module | GO to PINPOINT TEST R . |
| The heated seat is inoperative - driver seat does heat but the heated seat indicator does not illuminate when pressed | Wiring, terminals or connectors EATC module Heated seat module | GO to PINPOINT TEST S . |
| The heated seat is inoperative - passenger seat does heat but the heated seat indicator does not illuminate when pressed | Wiring, terminals or connectors EATC module Heated seat module | GO to PINPOINT TEST T . |
| A single climate controlled seat is inoperative/does not operate correctly | Circuitry MS-CAN network communication fault EATC module 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) DIAGNOSTIC TROUBLE CODE (DTC) INDEX . NOTE: The DCSM receives battery voltage to C3305a pins E and F. Pin F is used by the module for driver seat system operation and pin E is used for the passenger seat system operation. It may be possible for voltage to be missing from one pin location and cause only one climate controlled seat to become inoperative. GO to PINPOINT TEST AG . |
