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HOMESERVICE MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1006 (SEATING)DIAGNOSTIC TESTSSEATSDUAL CLIMATE CONTROLLED SEAT MODULE (DCSM) DTC CHART
2009 Mercury Milan Premier, 3.0 1, AWD
Dual Climate Controlled Seat Module (DCSM) DTC Chart
2009 Mercury Milan Premier, 3.0 1, AWDSECTION Dual Climate Controlled Seat Module (DCSM) DTC Chart
WARNING: This page is about a different car, the 2008 Mercury Milan, 2008 Lincoln MKZ, and 2008 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
DUAL CLIMATE CONTROLLED SEAT MODULE (DCSM) DTC CHART
| DTC | Description | Retrieved | Action |
|---|---|---|---|
| B103B | Thermo-electric Driver Overcurrent Low | On-Demand and Continuous | Go to Pinpoint Test S . |
| B103C | Thermo-electric Driver Open Load | On-Demand and Continuous | Go to Pinpoint Test T . |
| B103D | Blower Driver Overtemperature | On-Demand and Continuous | Go to Pinpoint Test U . |
| B1111 | Driver Thermo-electric Device Control Overtemperature Fault | On-Demand and Continuous | Go to Pinpoint Test S . |
| B1113 | Passenger Thermo-electric Device Control Overtemperature Fault | On-Demand and Continuous | Go to Pinpoint Test V . |
| B111B | Passenger Thermo-electric Driver Overcurrent Low | On-Demand and Continuous | Go to Pinpoint Test V . |
| B111C | Passenger Thermo-electric Driver Open Load | On-Demand and Continuous | Go to Pinpoint Test W . |
| B111D | Passenger Blower Driver Overtemperature | On-Demand and Continuous | Go to Pinpoint Test X . |
| B1342 | ECU is Faulted | On-Demand and Continuous | CLEAR the DTC. CARRY OUT the self-test. If the DTC does not clear or is retrieved again, 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 SRS. REFER to SUPPLEMENTAL RESTRAINT SYSTEM
article. DISCONNECT passenger seat side air bag module C313. CONNECT the battery ground cable. DISCONNECT DCSM C3305c and passenger seat cushion TED C3303. With the ignition switch ON, MEASURE the voltage between C3305c-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) . CLEAR the DTC. CARRY OUT the self-test. CONNECT passenger seat side air bag module C313. 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 C313. CONNECT the battery ground cable. DISCONNECT DCSM C3305c and passenger seat backrest TED C3311. With the ignition switch ON, MEASURE the voltage between C3305c-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) . CLEAR the DTC. CARRY OUT the self-test. CONNECT passenger seat side air bag module C313. 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 passenger seat side air bag module C313. DISCONNECT driver seat side air bag module C327. CONNECT the battery ground cable. DISCONNECT DCSM C3305c and driver seat cushion TED C3300. With the ignition switch ON, MEASURE the voltage between C3305c-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) . CLEAR the DTC. CARRY OUT the self-test. CONNECT passenger seat side air bag module C313. CONNECT driver 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 passenger seat side air bag module C313. DISCONNECT driver seat side air bag module C327. CONNECT the battery ground cable. DISCONNECT DCSM C3305c and driver seat backrest TED C3310. With the ignition switch ON, MEASURE the voltage between C3305c-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) . CLEAR the DTC. CARRY OUT the self-test. CONNECT passenger seat side air bag module C313. CONNECT driver 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 C313. CONNECT the battery ground cable. DISCONNECT DCSM C3305c and passenger seat cushion TED C3303. MEASURE the resistance between C3305c-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) . CLEAR the DTC. CARRY OUT the self-test. CONNECT passenger seat side air bag module C313. 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 C313. CONNECT the battery ground cable. DISCONNECT DCSM C3305c and passenger seat backrest TED C3311. MEASURE the resistance between C3305c-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) . CLEAR the DTC. CARRY OUT the self-test. CONNECT passenger seat side air bag module C313. 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 passenger seat side air bag module C313. DISCONNECT driver seat side air bag module C327. CONNECT the battery ground cable. DISCONNECT DCSM C3305c and driver seat cushion TED C3300. MEASURE the resistance between C3305c-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) . CLEAR the DTC. CARRY OUT the self-test. CONNECT passenger seat side air bag module C313. CONNECT driver 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 passenger seat side air bag module C313. DISCONNECT driver seat side air bag module C327. CONNECT the battery ground cable. DISCONNECT DCSM C3305c and driver seat backrest TED C3310. MEASURE the resistance between C3305c-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) . CLEAR the DTC. CARRY OUT the self-test. CONNECT passenger seat side air bag module C313. CONNECT driver 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. |
| B2486 | Climate Control Seat Module Voltage Out of Range | On-Demand and Continuous | REFER to CHARGING SYSTEM - GENERAL INFORMATION article to diagnose the incorrect charging system voltage symptom. |
| B2729 | Cushion Over-Temp Detected (Driver) | On-Demand and Continuous | Go to Pinpoint Test Y . |
| B272A | Passenger Cushion Over-Temp Detected | On-Demand and Continuous | Go to Pinpoint Test Z . |
| B272B | Passenger Back Over-Temp Detected | On-Demand and Continuous | Go to Pinpoint Test AA . |
| B272C | Driver Differential Temperature Fault | On-Demand and Continuous | Go to Pinpoint Test AB . |
| B272D | Passenger Differential Temperature Fault | On-Demand and Continuous | Go to Pinpoint Test AC . |
| 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 AD . |
| 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 AE . |
| B2730 | Back Over-Temp Detected (Driver) | On-Demand and Continuous | Go to Pinpoint Test AF . |
| 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. |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.