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Pinpoint Test W : DTC B19A2: Notes

Refer to CLIMATE CONTROLLED SEATS for schematic and connector information.

Normal Operation and Fault Conditions 

The SCME supplies voltage and ground to the passenger seat backrest blower motor. The SCME also sends a speed control voltage signal to the blower motor to control blower speed.

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
B19A2 Passenger Seat Back Blower Speed Short to Battery If the passenger seat backrest blower speed circuit is shorted to voltage, the SCME shuts down the passenger seat system and sets this DTC.

Possible Causes 

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