PINPOINT TEST BA : DTCs B1113 AND B111B: Notes
WARNING: This page is about a different car, the 2015 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.
Pinpoint Test BA: DTCs B1113 and B111B
Refer to Wiring Diagrams Climate Controlled Seats for schematic and connector information.
Normal Operation
The Passenger Climate Controlled Seat Module - 2 (PCSM-2) monitors the RH rear seat Thermo-Electric Device (TED) circuits. If a short to ground or voltage on any of these circuits is detected, the DTC(s) will be set.
- DTC B1113 (Passenger Thermo-Electric Device Control Overtemperature Fault) - If the PCSM-2 TED driver integrated circuit temperature exceeds 175°C (347°F), the PCSM-2 will shut down the RH rear seat system and set this DTC.
- DTC B111B (Passenger Thermo-Electric Driver Overcurrent Low) - If PCSM-2 outputs to the RH rear seat backrest or cushion TED (circuit pins A, B, C or D at the PCSM-2 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 PCSM-2 will shut down the RH rear seat system and set this DTC.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- TED assembly
- PCSM-2