AutoCodes – Chevrolet – B305A Chevrolet

B305A Chevrolet Code - No Response From Steering Column Lock Received

Quick Answer

The vehicle theft deterrent subsystem provides the capability to lock or unlock the steering electrically. Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B305A Chevrolet indicates No Response From Steering Column Lock Received.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 6,076

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B305A Chevrolet Description

The vehicle theft deterrent subsystem provides the capability to lock or unlock the steering electrically. The steering column lock 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. The Diagnostic Trouble Code (DTC) sets when the Body Control Module (BCM) has not received any response from the steering column lock module.

OBDII Code B305A Chevrolet - No Response From Steering Column Lock Received - AutoCodes.com — B305A Chevrolet Code - No Response From Steering Column Lock Received

What does this mean?

What are the Possible Causes of the DTC B305A Chevrolet?

Faulty Body Control Module (BCM)
Body Control Module (BCM) harness is open or shorted
Body Control Module (BCM) circuit poor electrical connection
Faulty Steering Column Lock Module

How to Fix the DTC B305A Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B305A Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Need more information on how to fix the B305A Chevrolet code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B305A Chevrolet Code

1. What does the OBDII code B305A mean on a Chevrolet?

B305A indicates that the vehicleâ€™s control module is not receiving a response from the steering column lock mechanism, which could prevent the vehicle from starting or operating normally.

2. What are the common symptoms of a B305A code on a Chevrolet?

Symptoms include the vehicle not starting, a "Service Steering Column Lock" message on the dashboard, or the inability to turn the ignition key.

3. What causes the B305A code to appear?

Common causes include a faulty steering column lock actuator, wiring or connector issues in the lock circuit, or a malfunctioning control module.

4. Can a weak battery cause the B305A code on a Chevrolet?

Yes, a weak or failing battery may cause communication issues with the steering column lock system, potentially triggering the B305A code.

5. How is the B305A code diagnosed?

A technician will typically use a scan tool to verify the code, inspect the wiring and connectors to the steering column lock, and test the lock actuator for proper operation.

6. Is it safe to drive with a B305A code on a Chevrolet?

Itâ€™s generally not safe, as the issue may prevent the vehicle from starting or locking the steering unexpectedly, posing a safety risk.

7. How can the B305A code be fixed?

Repairs may include replacing the steering column lock actuator, repairing or replacing damaged wiring, or reprogramming the control module.

8. Can the B305A code clear on its own?

Unlikely. The underlying issue must be resolved for the code to clear, and the system may require a reset using a diagnostic tool.

9. Is the B305A code covered under warranty on a Chevrolet?

It depends on the vehicleâ€™s warranty terms and whether the issue is caused by a manufacturer defect. Check with your dealership for coverage details.

10. Can I fix the B305A code myself?

If you have experience with automotive electrical systems, you can inspect and repair wiring or connectors. However, diagnosing and replacing the lock actuator or reprogramming the module may require professional assistance.