2019 Lincoln MKT BaseFACTORY OEM SERVICE PROCEDURE

Driver Door Module (DDM)

DTC Description Action
B103B Thermoelectric Driver Overcurrent Low GO to Pinpoint Test AB .
B103C Thermoelectric Driver Open Load GO to Pinpoint Test AC .
B103D Blower Driver Overtemperature GO to Pinpoint Test AD .
B1111 Driver Thermo Electric Device Control Overtemperature Fault GO to Pinpoint Test AB .
B1113 Passenger Thermo Electric Device Control Overtemperature Fault GO to Pinpoint Test AE .
B111B Passenger Thermoelectric Driver Overcurrent Low GO to Pinpoint Test AE .
B111C Passenger Thermoelectric Driver Open Load GO to Pinpoint Test AF .
B111D Passenger Blower Driver Overtemperature GO to Pinpoint Test AG .
B1342 ECU is Faulted INSTALL a new Dual Climate Controlled Seat Module (DCSM). REFER to Dual Climate Controlled Seat Module (DCSM) .
B19A1 Passenger Seat Cushion Blower Speed Short to Battery GO to Pinpoint Test AH .
B19A2 Passenger Seat Back Blower Speed Short to Battery GO to Pinpoint Test AI .
B19A3 Driver Seat Cushion Blower Speed Short to Battery GO to Pinpoint Test AJ .
B19A4 Driver Seat Back Blower Speed Short to Battery GO to Pinpoint Test AK .
B19A5 Passenger Seat Cushion Blower Speed Short to Ground GO to Pinpoint Test AL .
B19A6 Passenger Seat Back Blower Speed Short to Ground GO to Pinpoint Test AM .
B19A7 Driver Seat Cushion Blower Speed Short to Ground GO to Pinpoint Test AN .
B19A8 Driver Seat Back Blower Speed Short to Ground GO to Pinpoint Test AO .
B2477 Module Configuration Failure
NOTE: This DTC indicates PMI has not been done to a newly installed module or configuration data has been lost.
CARRY OUT Programmable Module Installation (PMI) on the DCSM. REFER to Module Configuration . REPEAT the self-test. If PMI is successful, the DTC will not be present.
B2486 Climate Control Seat Module Voltage Out of Range GO to Pinpoint Test AA .
B2729 Cushion Over-Temp Detected GO to Pinpoint Test AP .
B272A Passenger Cushion Over-Temp Detected GO to Pinpoint Test AQ .
B272B Passenger Back Over-Temp Detected GO to Pinpoint Test AR .
B272C Driver Differential Temperature Fault GO to Pinpoint Test AS .
B272D Passenger Differential Temperature Fault GO to Pinpoint Test AT .
B272E Driver Ignition Run/Blower Circuit Short to Ground (this DTC sets for an open or short to voltage) GO to Pinpoint Test AU .
B272F Passenger Ignition Run/Blower Circuit Short to Ground (this DTC sets for an open or short to voltage) GO to Pinpoint Test AV .
B2730 Back Over-Temp Detected GO to Pinpoint Test AW .
U2050 No Application Present INSTALL a new DCSM. REFER to Dual Climate Controlled Seat Module (DCSM) . REPEAT the self-test.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.