B2180 CHEVROLET – Right Seat Back Heater Circuit

 

B2180 CHEVROLET Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B2180 CHEVROLET Possible Causes

 

Faulty Right Seat Back Heater Element,Right Seat Back Heater Element harness is open or shorted,Right Seat Back Heater Element circuit poor electrical connection,Faulty Memory Seat Module (MSM)

 

B2180 CHEVROLET Description

 

When the heated seat function is active, the Memory Seat Module (MSM) 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. The OBDII code sets when the module detects that the set point temperature is not to factory specifications.