Pinpoint Test Ai : DTC B19A2: Notes

Refer to Climate Controlled Seats , for schematic and connector information.

Normal Operation 

The Front Seat Climate Control Module (SCME) supplies a speed control signal voltage to the passenger seat backrest TED on circuit CHS09 (GY). The TED blower is supplied operating voltage from Front Seat Climate Control Module (SCME) output circuit CHS14 (GN) and ground from Front Seat Climate Control Module (SCME) output circuit CHS08 (BN/YE).

• DTC B19A2 (Passenger Seat Back Blower Speed Short to Battery) - If the passenger seat backrest blower speed circuit is shorted to voltage, the Front Seat Climate Control Module (SCME) 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
• Front Seat Climate Control Module (SCME)