Thursday, July 25, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 663


DTC B3604 or B3605



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 Descriptors



DTC B3604 01



- Adjustable Foot Pedal Forward Switch Circuit Short to Battery



DTC B3605 01



- Adjustable Foot Pedal Rearward Switch Circuit Short to Battery



Diagnostic Fault Information



Circuit/System Description



The adjustable pedals forward and rearward switches are inputs to the memory seat module (MSM). The MSM supplies the switch assembly with a



battery positive reference voltage. When the switch is operated to the forward or rearward direction, battery positive voltage is applied to the forward



or rearward switch signal inputs.



Conditions for Running the DTC



System voltage is 9-16 volts.



Conditions for Setting the DTC



The forward and rearward switch signal circuits are active at the same time.



Action Taken When the DTC Sets



The adjustable pedals will be disabled.



Conditions for Clearing the DTC



* The DTC becomes history when the conditions for setting the DTC are no longer present.



* The history DTC clears after 100 malfunction-free ignition cycles.



Reference Information



Schematic Reference



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



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))



Electrical Information Reference

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