Wednesday, December 25, 2019

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 469

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 469



DTC B1445



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 B1445 02



- Control Module Voltage Output Circuit Short to Ground



Diagnostic Fault Information



Circuit/System Description



The body control module (BCM) controls the wired accessory power components by applying voltage to the ignition voltage circuit at harness



connector X4 terminal 12. Voltage is applied when the ignition switch is in the ACCESSORY or the ON position.



Conditions for Running the DTC



* The system voltage is between 9-16 V.



* The DTC can only set when the output is actively being requested by the module. Refer to Circuit/System Description for specific conditions.



Conditions for Setting the DTC



The DTC will set only when the module requests the output and there is a short to ground in the ignition voltage circuit.



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 clear when the malfunction is no longer present.



* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.



Reference Information



Schematic Reference



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



Diagram/Power Distribution Schematics)



Power Moding Schematics (See: Diagrams/Electrical Diagrams/Starting and Charging/Power and Ground Distribution/System Diagram/Power



Moding Schematics)



Connector End View Reference



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



Description and Operation



Retained Accessory Power Description and Operation (See: Power and Ground Distribution/Description and Operation/Retained Accessory Power



)



Electrical Information Reference



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