2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 540
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
B2345 00
After a heated seat is activated, the HSM detects a shorted circuit on the seat heating element supply voltage circuit or control circuit.
B2345 13
Any of the temperature sensor inputs remains below 1.45 V for more than 1 second.
B2345 42
The current sensing calibration is not programmed.
B2345 4B
The current sensing calibration is out of range.
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Thursday, November 28, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 540
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