Saturday, June 22, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 197


Conditions for Running the DTC



Ignition ON.



Conditions for Setting the DTC



The HVAC control module detects the temperature sensor signal circuit is less than -36锟斤拷C (-38锟斤拷F) or greater than 215锟斤拷C (419锟斤拷F) for greater than 15



seconds.



Action Taken When the DTC Sets



The system operates using a default value.



Conditions for Clearing the DTC



* The DTC will become history if the HVAC control module no longer detects the condition that set the DTC.



* The history DTC will clear after 100 fault-free ignition cycles.



Reference Information



Schematic Reference



HVAC Schematics (See: Heating and Air Conditioning/Diagrams/Electrical Diagrams/HVAC - Automatic)



Connector End View Reference



Component Connector End Views (See: Diagrams/Connector Views)



Description and Operation



* Air Temperature Description and Operation (See: Heating and Air Conditioning/Description and Operation/HVAC - Automatic/Air



Temperature Description and Operation)



* Air Delivery Description and Operation (See: Heating and Air Conditioning/Description and Operation/HVAC - Automatic/Air Delivery



Description and Operation)



Electrical Information Reference



* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit



Testing/Circuit Testing)



* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic



Procedures/Connector Repairs/Connector Repairs)



* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General



Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)



* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring



Repairs/Wiring Repairs)



Scan Tool Reference



Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information



Circuit/System Verification



1. Measure actual outside air temperature using a thermometer. Compare this value to the scan tool Outside Air Temp. Raw parameter. The



measured temperature should be within 5 degrees of parameter.

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