Normal Operation

The Dual Climate Controlled Seat Module (DCSM) monitors the Thermo-Electric Device (TED) circuits. If an open on any of these circuits is detected, the DTC will be set.

• DTC B103C (Thermo-Electric Driver Open Load) - If the DCSM output circuits to the passenger seat backrest or cushion TED (circuit pins A, B, C or D at the DCSM connector) or any components within these circuit loops are open, disconnected or a TED resistance greater than 90, 000 ohms is sensed, the DCSM continues normal operation and sets this DTC.

This pinpoint test is intended to diagnose the following: 

• Wiring, terminals or connectors
• TED assembly
• DCSM