2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 579
DTC B2435 02
- Left Seat Back Heater Sensor Circuit Short to Ground
DTC B2435 05
- Left Seat Back Heater Sensor Circuit Short to Battery or Open
DTC B2440 02
- Right Seat Back Heater Sensor Circuit Short to Ground
DTC B2440 05
- Right Seat Back Heater Sensor Circuit Short to Battery or Open
Diagnostic Fault Information
Circuit/System Description
The heated seat temperature sensor that set this diagnostic trouble code (DTC) is located in the seat cushion just under the seat cover with the seat
heating element. The heated seat module (HSM) supplies a 5 V reference voltage through the temperature sensor signal circuit and a ground
through the low reference circuit to the sensor. The HSM monitors the voltage of the sensor signal circuit to determine the temperature of the seat.
The temperature sensor varies in resistance based on the temperature of the heating element causing the signal voltage to change. Once the seat
reaches the set temperature, the HSM will then cycle the control circuits of the heating elements ON and OFF in order to maintain the desired seat
temperature based on the feedback voltage from the sensor.
Conditions for Running the DTC
The HSM must be powered.
Conditions for Setting the DTC
B2435 02 or B2440 02
The temperature sensor voltage drops below 0.8 V for more than 1 second.
