Normal Operation
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
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 disables the affected seat and sets the following DTCs:
- DTC B1113 (Passenger Thermal Electric Device Control Overtemperature Fault) - If the DCSMTED driver integrated circuit temperature exceeds 175°C (347°F), the DCSM shuts down the passenger seat system and sets this DTC.
- DTC B111B (Passenger Thermoelectric Driver Overcurrent Low) - If DCSM outputs to the passenger seat backrest or cushion TED (circuit pin A, B, C or D at the DCSM connector) or any components within these circuit loops are shorted to ground or a TED resistance of less than 0.9 ohms is sensed, the DCSM shuts down the passenger seat system and sets this DTC.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- TED assembly
- DCSM