2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 570

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 570

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC B2345 00

- Seat Heater Disable Circuit

DTC B2345 13

- Seat Heater Elements Temperature Above Threshold

DTC B2345 42

- Seat Heater Elements Current Sensing Calibration Not Programmed

DTC B2345 4B

- Seat Heater Elements Current Sensing Calibration Out of Range

Diagnostic Fault Information

Circuit/System Description

The front seat heating elements are controlled by a common high current relay internal to the heated seat control module (HSM) and on the low side

by individual element control circuits. The HSM connects the seat heater element supply voltage circuits to a common reference point. This

reference point is biased to approximately 2.5 V. Before the HSM will allow heated seat operation, it checks to see if the heating element supply

voltage circuits and control circuits are shorted to ground or battery voltage. Once the HSM verifies that it is not closing into a shorted heating

element, it allows heated seat operation. After which it continues to monitor for a shorted circuit.

Conditions for Running the DTC

The HSM must be powered.

Conditions for Setting the DTC