AutoCodesChevrolet – B2588 Chevrolet

B2588 Chevrolet Code - Column Lock/Unlock Drive 'A'

Quick Answer

The Body Control Module (BCM) provides the steering column control function which allows the column to be electronically locked or unlocked. 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
B2588 Chevrolet indicates Column Lock/Unlock Drive 'A'.
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 953
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Dec 29, 2019
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Code B2588 Chevrolet Description

The Body Control Module (BCM) provides the steering column control function which allows the column to be electronically locked or unlocked. The BCM provides three outputs, steering column lock, steering column unlock, and a steering column lock relay control. The BCM can apply a ground or battery output on the steering column lock or steering column unlock depending on the desired steering column lock motor position. The BCM uses the feedback switch in order to monitor the motor position and determine if the commanded position was accomplished. The Diagnostic Trouble Code (DTC) sets when the BCM detects an internal malfunction, an open or a short to ground, in the steering column lock circuit.
OBDII Code B2588 Chevrolet - Column Lock/Unlock Drive 'A' - AutoCodes.com
B2588 Chevrolet Code - Column Lock/Unlock Drive 'A'

What are the Possible Causes of the DTC B2588 Chevrolet?

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

How to Fix the DTC B2588 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 B2588 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 Help with the Code?

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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 B2588 Chevrolet Code

1. What does the OBDII code B2588 mean on a Chevrolet vehicle?

The B2588 code refers to an issue with the "Column Lock/Unlock Drive 'A'," indicating a malfunction in the steering column lock system.

2. What are common symptoms of the B2588 code in a Chevrolet?

Common symptoms include the steering column not locking or unlocking as intended, difficulty starting the vehicle, or a warning light on the dashboard.

3. What causes the B2588 code to appear?

The code can be triggered by a faulty steering column lock actuator, wiring issues, a damaged lock mechanism, or a malfunctioning Body Control Module (BCM).

4. Can I drive my Chevrolet with a B2588 code?

It’s not recommended, as the steering column lock could fail to engage or disengage properly, potentially causing safety concerns or leaving the vehicle immobile.

5. How is the B2588 code diagnosed?

A technician will use a scan tool to confirm the code, inspect the steering column lock actuator, check for wiring damage, and test the BCM for proper function.

6. How do I fix the B2588 code on my Chevrolet?

Repair steps may include replacing the column lock actuator, repairing damaged wires or connectors, or reprogramming or replacing the BCM.

7. Is the B2588 code related to the ignition system?

Yes, the steering column lock system works alongside the ignition system to ensure the vehicle is secure when turned off.

8. What tools are needed to diagnose the B2588 code?

A professional scan tool, multimeter, and possibly specialized tools to access the steering column components are typically required.

9. How much does it cost to repair the B2588 code in a Chevrolet?

Repair costs vary but can range from $200 to $600 depending on whether the issue is with the actuator, wiring, or BCM.

10. Can a B2588 code be caused by a dead battery?

Yes, a low or dead battery can cause communication issues in the BCM, potentially triggering this code.

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