Pinpoint Test AL: DTC B19A5: Notes

Refer to Climate Controlled Seats for schematic and connector information.

Normal Operation 

The DCSM supplies a speed control signal voltage to the passenger seat cushion TED on circuit RHS08 (VT/WH). The TED blower is supplied operating voltage from DCSM output circuit CHS14 (GN) and ground from DCSM output circuit CHS08 (BN/YE).

• DTC B19A5 (Passenger Seat Cushion Blower Speed Short to Ground) - If the passenger seat cushion blower speed circuit is shorted to ground, 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