Saturday, April 6, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 300


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 Testing



Perform the Liftgate Calibration (Except Avalanche and EXT Escalade) (See: Body and Frame/Doors, Hood and Trunk/Trunk / Liftgate/Testing



and Inspection/Programming and Relearning). The liftgate module should learn the travel limits, exit the calibration mode, and B1019 00 will



become a history code.



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



Control Module References (See: Testing and Inspection/Programming and Relearning) for LGM replacement, setup and programming



Vehicle Access



DTC B1023



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provides an overview of each diagnostic category.



DTC Descriptor



DTC B1023 00



- Integral Switch Performance



Circuit/System Description



The driver door switch (DDS) and front passenger door switch (PDS) each contain switches that control power door lock and window functions. The



DDS also contains the control switch for the power outside rear view mirrors. These switches are integrated within the door control modules and are



not serviceable as separate components. The DDS and PDS monitor these switch inputs for internal faults and set B1023 00 if any are detected.



Conditions for Running the DTC



The system voltage is 9-16 volts.



Conditions for Setting the DTC



The DDS or PDS detects multiple or simultaneous inputs from a window or door lock switch.



Action Taken When the DTC Sets



The DDS or PDS ignores inputs from the malfunctioning switch.



Conditions for Clearing the DTC



* The DTC will be current for as long as the fault is present.



* When the fault is no longer present, the DTC will be a history DTC.



* A history DTC will clear after 50 ignition cycles.



Reference Information



Schematic Reference



Door Lock/Indicator Schematics (See: Body and Frame/Locks/Diagrams/Electrical Diagrams/Door Lock/Indicator Schematics)

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