Dual Climate Controlled Seat Module (DCSM) DTC Chart
DUAL CLIMATE CONTROLLED SEAT MODULE (DCSM) DTC CHART
| DTC | Description | Retrieved | Action |
|---|---|---|---|
| B103B | Thermoelectric Driver Overcurrent Low | On-Demand and Continuous | Go to Pinpoint Test AE . |
| B103C | Thermoelectric Driver Open Load | On-Demand and Continuous | Go to Pinpoint Test AF . |
| B103D | Blower Driver Overtemperature | On-Demand and Continuous | Go to Pinpoint Test AG . |
| B1111 | Driver Thermoelectric Device Control Overtemperature Fault | On-Demand and Continuous | Go to Pinpoint Test AE . |
| B1113 | Passenger Thermoelectric Device Control Overtemperature Fault | On-Demand and Continuous | Go to Pinpoint Test AH . |
| B111B | Passenger Thermoelectric Driver Overcurrent Low | On-Demand and Continuous | Go to Pinpoint Test AH . |
| B111C | Passenger Thermoelectric Driver Open Load | On-Demand and Continuous | Go to Pinpoint Test AI . |
| B111D | Passenger Blower Driver Overtemperature | On-Demand and Continuous | Go to Pinpoint Test AJ . |
| B1342 | ECU is Faulted | On-Demand and Continuous | INSTALL a new dual climate controlled seat module (DCSM) and CARRY OUT programmable module installation (PMI). REFER to Dual Climate Controlled Seat Module (DCSM) . |
| B19A1 | Passenger Seat Cushion Blower Speed Short to Battery | On-Demand and Continuous | DEPOWER the supplemental restraint system (SRS). REFER to SUPPLEMENTAL RESTRAINT SYSTEM
article. DISCONNECT passenger seat side air bag module C327. DISCONNECT DCSM C3036c and passenger cushion thermo-electric device (TED) C3328. CONNECT the battery ground cable. With the ignition switch ON, MEASURE the voltage between C3036c-3, circuit VHS23 (BN/BU), harness side and ground. REPAIR the short to voltage as needed. If OK, INSTALL a new DCSM and CARRY OUT PMI. REFER to Dual Climate Controlled Seat Module (DCSM) . CARRY OUT the self-test. CLEAR the DTC. CONNECT passenger seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. |
| B19A2 | Passenger Seat Back Blower Speed Short to Battery | On-Demand and Continuous | DEPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM
article. DISCONNECT passenger seat side air bag module C327. DISCONNECT DCSM C3036c and passenger backrest TED C3326. CONNECT the battery ground cable. With the ignition switch ON, MEASURE the voltage between C3036c-4, circuit VHS21 (BU/WH), harness side and ground. REPAIR the short to voltage as needed. If OK, INSTALL a new DCSM and CARRY OUT PMI. REFER to Dual Climate Controlled Seat Module (DCSM) . CARRY OUT the self-test. CLEAR the DTC. CONNECT passenger seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. |
| B19A3 | Driver Seat Cushion Blower Speed Short to Battery | On-Demand and Continuous | DEPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM
article. DISCONNECT driver seat side air bag module C328 and passenger side air bag module C327. DISCONNECT DCSM C3036c and driver cushion TED C3327. CONNECT the battery ground cable. With the ignition switch ON, MEASURE the voltage between C3036c-11, circuit VHS18 (BN/GN), harness side and ground. REPAIR the short to voltage as needed. If OK, INSTALL a new DCSM and CARRY OUT PMI. REFER to Dual Climate Controlled Seat Module (DCSM) . CARRY OUT the self-test. CLEAR the DTC. CONNECT driver seat side air bag module C328 and passenger seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. |
| B19A4 | Driver Seat Back Blower Speed Short to Battery | On-Demand and Continuous | DEPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM
article. DISCONNECT driver seat side air bag module C328 and passenger seat side air bag module C327. DISCONNECT DCSM C3036c and driver backrest TED C3322. CONNECT the battery ground cable. With the ignition switch ON, MEASURE the voltage between C3036c-12, circuit VHS16 (BU/GN), harness side and ground. REPAIR the short to voltage as needed. If OK, INSTALL a new DCSM and CARRY OUT PMI. REFER to Dual Climate Controlled Seat Module (DCSM) . CARRY OUT the self-test. CLEAR the DTC. CONNECT driver seat side air bag module C328 and passenger seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. |
| B19A5 | Passenger Seat Cushion Blower Speed Short to Ground | On-Demand and Continuous | DEPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM
article. DISCONNECT passenger seat side air bag module C327. DISCONNECT DCSM C3036c and passenger cushion TED C3328. CONNECT the battery ground cable. MEASURE the resistance between C3036c-3, circuit VHS23 (BN/BU), harness side and ground. REPAIR the short to ground as needed. If OK, INSTALL a new DCSM and CARRY OUT PMI. REFER to Dual Climate Controlled Seat Module (DCSM) . CARRY OUT the self-test. CLEAR the DTC. CONNECT passenger seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. |
| B19A6 | Passenger Seat Back Blower Speed Short to Ground | On-Demand and Continuous | DEPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM
article. DISCONNECT passenger seat side air bag module C327. DISCONNECT DCSM C3036c and passenger backrest TED C3326. CONNECT the battery ground cable. MEASURE the resistance between C3036c-4, circuit VHS21 (BU/WH), harness side and ground. REPAIR the short to ground as needed. If OK, INSTALL a new DCSM and CARRY OUT PMI. REFER to Dual Climate Controlled Seat Module (DCSM) . CARRY OUT the self-test. CLEAR the DTC. CONNECT passenger seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. |
| B19A7 | Driver Seat Cushion Blower Speed Short to Ground | On-Demand and Continuous | DEPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM
article. DISCONNECT driver seat side air bag module C328 and passenger seat side air bag module C327. DISCONNECT DCSM C3036c and driver cushion TED C3327. CONNECT the battery ground cable. MEASURE the resistance between C3036c-11, circuit VHS18 (BN/GN), harness side and ground. REPAIR the short to ground as needed. If OK, INSTALL a new DCSM and CARRY OUT PMI. REFER to Dual Climate Controlled Seat Module (DCSM) . CARRY OUT the self-test. CLEAR the DTC. CONNECT driver seat side air bag module C328 and passenger seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. |
| B19A8 | Driver Seat Back Blower Speed Short to Ground | On-Demand and Continuous | DEPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM
article. DISCONNECT driver seat side air bag module C328 and passenger seat side air bag module C327. DISCONNECT DCSM C3036c and driver backrest TED C3322. CONNECT the battery ground cable. MEASURE the resistance between C3036c-12, circuit VHS16 (BU/GN), harness side and ground. REPAIR the short to ground as needed. If OK, INSTALL a new DCSM and CARRY OUT PMI. REFER to Dual Climate Controlled Seat Module (DCSM) . CARRY OUT the self-test. CLEAR the DTC. CONNECT driver seat side air bag module C328 and passenger seat side air bag module C327. REPOWER the SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM article. |
| B2477 | Module Configuration Failure | On-Demand and Continuous |
NOTE:
This DTC indicates PMI has not been done to a newly installed module or configuration data has been lost. CARRY OUT PMI on the DCSM. REFER to MODULE CONFIGURATION
article. REPEAT the self-test. If PMI is successful, the DTC will not be present. |
| B2729 | Cushion Over-Temp Detected (Driver) | On-Demand and Continuous | Go to Pinpoint Test AK . |
| B272A | Passenger Cushion Over-Temp Detected | On-Demand and Continuous | Go to Pinpoint Test AL . |
| B272B | Passenger Back Over-Temp Detected | On-Demand and Continuous | Go to Pinpoint Test AM . |
| B272C | Driver Differential Temperature Fault | On-Demand and Continuous | If on-demand, go to Pinpoint Test AN . If continuous only, and the system is operating, CHECK the TED cooling performance on the affected seat and VERIFY the system is operating correctly. REFER to Component Test - Thermo-Electric Device (TED) Cooling Performance. If a concern is found, CHECK the affected seat cushion or backrest for correct installation of the climate controlled seat components (TED, manifold, air ducts and foam pad). CHECK for airflow restrictions (TED inlets and outlets, TED-to-manifold connections, filters and ducts) and REPAIR as needed. If OK, CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. The DTC may have been set by extreme cabin temperatures or excessive sun-load on the seat causing the system to enter recovery mode. Occupant size and weight characteristics can also be a factor. If a concern cannot be found or duplicated, RETURN the vehicle to the customer. |
| B272D | Passenger Differential Temperature Fault | On-Demand and Continuous | If on-demand, go to Pinpoint Test AO . If continuous only, and the system is operating, CHECK the TED cooling performance on the affected seat and VERIFY the system is operating correctly. REFER to Component Test - Thermo-Electric Device (TED) Cooling Performance. If a concern is found, CHECK the affected seat cushion or backrest for correct installation of the climate controlled seat components (TED, manifold, air ducts and foam pad). CHECK for airflow restrictions (TED inlets and outlets, TED-to-manifold connections, filters and ducts) and REPAIR as needed. If OK, CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. The DTC may have been set by extreme cabin temperatures or excessive sun-load on the seat causing the system to enter recovery mode. Occupant size and weight characteristics can also be a factor. If a concern cannot be found or duplicated, RETURN the vehicle to the customer. |
| B272E | Driver Ignition Run/Blower Circuit Short to Ground (this DTC sets for an open or short to voltage) | On-Demand and Continuous | Go to Pinpoint Test AP . |
| B272F | Passenger Ignition Run/Blower Circuit Short to Ground (this DTC sets for an open or short to voltage) | On-Demand and Continuous | Go to Pinpoint Test AQ . |
| B2730 | Back Over-Temp Detected (Driver) | On-Demand and Continuous | Go to Pinpoint Test AR . |
| U2050 | No Application Present | Continuous | INSTALL a new DCSM and CARRY OUT PMI. REFER to Dual Climate Controlled Seat Module (DCSM) . REPEAT the self-test. |
| All Other DTCs | - | On-Demand and Continuous | REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES article. |