Pinpoint Test AY : DTC B103C: Notes

Pinpoint Test AY: DTC B103C 

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 LH rear seat 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 PCSM-2 outputs to the LH rear seat backrest or cushion TED (circuit pins G, H, J or K at the PCSM-2 connector) or any components within these circuit loops are open, disconnected or a TED resistance greater than 90, 000 ohms is sensed, the PCSM-2 continues normal operation and sets this DTC.

This pinpoint test is intended to diagnose the following: 

• Wiring, terminals or connectors
• TED assembly
• PCSM-2