Sunday, May 19, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 477


DTC B2180 0C



- Right Seat Back Heater Circuit Current Below Threshold



DTC B2180 0D



- Right Seat Back Heater Circuit Resistance Above Threshold



DTC B2180 0E



- Right Seat Back Heater Circuit Resistance Below Threshold



DTC B2180 1F



- Right Seat Back Heater Circuit Intermittent



Diagnostic Fault Information



Circuit/System Description



When the heated seat function is active, the heated seat module (HSM) supplies battery voltage through the element supply voltage circuit to the seat



heater elements. The module controls the seat temperature by providing a PWM ground through the heated seat element control circuit to the seat



heater elements. The module then monitors the current flow through the heating element and the temperature sensor rate of change to verify correct



operation.



Conditions for Running the DTC



The HSM must be powered and the heated seat must be enabled.



Conditions for Setting the DTC



B1935 04 or B2180 04



The module does not detect a temperature change within 210 seconds.