Driver Thermal Electric Device Control Overtemperature Fault
Table of contents
B1111 MERCURY Possible Causes
- Faulty Thermo-Electric Device (TED) Assembly
- Thermo-Electric Device (TED) Assembly harness is open or shorted
- Thermo-Electric Device (TED) Assembly circuit poor electrical connection
- Faulty Dual Climate Controlled Seat Module (DCSM)
How do I fix code B1111 MERCURY?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B1111 MERCURY code
The cost of diagnosing the B1111 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B1111 MERCURY Description
The seat cushion and backrest are equipped with a Thermo-Electric Device (TED) Assembly that includes a seat blower (fan motor, serviced as an assembly with the TED). When the Dual Climate Controlled Seat Module (DCSM) detects an overcurrent and/or overtemperature in the output circuits to the TEDs, it will disable the affected seat and set the following DTCs: DTC B1111 (Driver Thermal Electric Device Control Overtemperature Fault) if the DCSM TED driver integrated circuit temperature exceeds 175°C (347°F), the DCSM shuts down the driver seat system and sets this DTC.