2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 559

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 559

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.