Monday, July 12, 2021

2010 Cadillac Truck SRX FWD V6-3.0L Page 680

2010 Cadillac Truck SRX FWD V6-3.0L Page 680



* 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 B3622 07



- Steering Wheel Controls Signal Circuit High Voltage



Diagnostic Fault Information



Circuit/System Description



The body control module (BCM) monitors the steering wheel control signal circuit voltage. If the voltage level is too high, damage may result in



the system. When a high voltage condition is detected, the BCM will ignore the switch command.



Conditions for Running the DTC



* Battery voltage is between 9-16 V.



* The ignition is ON.



Conditions for Setting the DTC



The BCM detects a short to voltage in the steering wheel control switch signal circuit.



Action Taken When the DTC Sets



The BCM will ignore switch inputs.



Conditions for Clearing the DTC



* The condition responsible for setting the DTC no longer exists.



* A history DTC will clear once 100 consecutive malfunction free ignition cycles have occurred.



Reference Information



Schematic Reference



Steering Wheel Secondary/Configurable Control Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Steering



Wheel Secondary/Configurable Control Schematics)



Connector End View Reference



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



Description and Operation



Steering Wheel Controls Description and Operation (See: Accessories and Optional Equipment/Description and Operation/Steering Wheel



Controls)



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

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