2010 Cadillac Truck SRX AWD 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)
