Normal Operation
WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The Dual Climate Controlled Seat Module (DCSM) supplies a speed control signal voltage to the passenger seat cushion Thermo-Electric Device (TED) on circuit VHS23 (BN/BU). The TED blower is supplied operating voltage from DCSM output circuit CHS08 (BN/YE) and ground from DCSM output circuit RHS08 (VT/WH).
- DTC B19A1 (Passenger Seat Cushion Blower Speed Short to Battery) - If the passenger seat cushion blower speed circuit is shorted to voltage, the DCSM will shut down the passenger seat system and set this DTC.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- TED and blower assembly
- DCSM