DTC B1521-49: Rear Seat Warmer Control Unit Internal Malfunction

B1521:49 (DASH_ESU) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Rear seat warmer control unit internal malfunction
Detection condition	The dash-electrical supply unit detects the rear seat warmer control unit internal malfunction.
Fail-safe	Stops the rear seat warmer output.
Possible cause	Rear seat warmer control unit malfunction (Refer to [REAR SEAT WARMER CONTROL UNIT REMOVAL/INSTALLATION ] ). Dash-electrical supply unit malfunction (Refer to [DASH-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION ] ).
Repeatability verification procedure	Clear the DTC recorded in the memory. (See CLEARING DTC .)
System wiring diagram	Not applicable