Wednesday, July 3, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 3


Conditions for Setting the DTC



The DTC will set when the module requests the output and there is a short to ground.



Action Taken When the DTC Sets



The module output driver will be shut down and not supply voltage to the circuit.



Conditions for Clearing the DTC



* The current DTC will go to history when a malfunction is no longer present.



* The BCM clears the history DTC when a current DTC is not detected in 50 ignition cycles.



Reference Information



Schematic Reference



* Adjustable Pedal Schematics (See: Accessories and Optional Equipment/Pedal Positioning System/Diagrams/Electrical Diagrams)



* Rear Seat Schematics ()



* Upfitter Provision Schematics (See: Diagrams/Electrical Diagrams/Starting and Charging/Power and Ground Distribution/System



Diagram/Upfitter Provision Schematics)



Connector End View Reference



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



Description and Operation



* Adjustable Pedals Description and Operation (with Memory) (See: Accessories and Optional Equipment/Pedal Positioning



System/Description and Operation/Adjustable Pedals Description and Operation (with Memory))Adjustable Pedals Description and Operation



(w/o Memory) (See: Accessories and Optional Equipment/Pedal Positioning System/Description and Operation/Adjustable Pedals



Description and Operation (w/o Memory))



* Power Seats System Description and Operation (Front Seat) ()Power Seats System Description and Operation (Rear Folding Seat) ()



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)



Circuit/System Testing



1. Ignition OFF, disconnect the park enable PCB relay.



2. Connect a test lamp between the park enable signal circuit and battery positive voltage.



3. Ignition ON, transmission in PARK, verify the test lamp does not illuminate.



锟斤拷 If the test lamp illuminates, test for a short to ground on the park enable signal circuit. If the circuit tests normal and the DTC is current,



replace the BCM.



4. If the circuit tests normal and the DTC is current, test or replace the park enable PCB relay.



Repair Instructions



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



* Instrument Panel Electrical Center or Junction Block Replacement - Left Side (See: Maintenance/Fuses and Circuit Breakers/Fuse



Block/Service and Repair/Removal and Replacement/Instrument Panel Electrical Center or Junction Block Replacement - Left Side)



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



B008A



DTC B008A or B008B



Diagnostic Instructions



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

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