Saturday, June 26, 2021

2010 Cadillac Truck SRX FWD V6-3.0L Page 330

2010 Cadillac Truck SRX FWD V6-3.0L Page 330



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 Verification



1. With a master vehicle key, turn the ignition ON.



2. Observe the security indicator. After approximately 10 minutes, the indicator will turn off.



3. Turn the ignition OFF and wait 5 s.



4. Repeat steps 2-4 two more times for a total of 3 cycles or 30 minutes.



5. With a master vehicle key, turn the ignition ON. The start disable will now be cleared.



6. Using the Red Emergency Button, notify the advisor that the Ignition Block on the vehicle has been cleared and to update the account status.



B305A



DTC B305A



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 B305A 00



- No Response From Steering Column Lock Received



Circuit/System Description



The vehicle theft deterrent subsystem provides the capability to lock or unlock the steering electrically. The steering column lock control module is



allowed to unlock when power mode transitions to a non off power mode and an authenticated driver identification device is present. Once the



column is unlocked, a crank request can be allowed.



Conditions for Running the DTC



* The ignition is in OFF, ACCESSORY or RUN position.



* The system voltage is between 9-16 V.



Conditions for Setting the DTC



The body control module (BCM) has not received any response from the steering column lock control module.



Action Taken When the DTC Sets



* DTC B305A is stored in the BCM memory.



* The driver information center displays the service column lock system warning message.



* The steering column lock indicator is ON.



Conditions for Clearing the DTC



* The condition for setting the DTC is no longer present.



* The BCM has received response from the steering column lock control module.



Reference Information



Schematic Reference



Column Lock Schematics (See: Diagrams/Electrical Diagrams/Steering/Steering Column)

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