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B2707 Chevrolet Code - Gearshift Unlock Circuit Low

Quick Answer

The B2707 diagnostic trouble code for Chevrolet vehicles indicates a problem with the gearshift unlock circuit being detected as operating at a low voltage. Common causes include Damaged wiring or connectors in the gearshift unlock circuit, Faulty gearshift position sensor, Malfunctioning brake light switch. 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
B2707 Chevrolet indicates Gearshift Unlock Circuit Low.
Common causes
Common causes include Damaged wiring or connectors in the gearshift unlock circuit, Faulty gearshift position sensor, Malfunctioning brake light switch.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code B2707 Chevrolet Description

The B2707 diagnostic trouble code for Chevrolet vehicles indicates a problem with the gearshift unlock circuit being detected as operating at a low voltage. This circuit is responsible for allowing the gearshift lever to be moved out of the "Park" position when the brake pedal is depressed, ensuring the vehicle can be shifted into drive or reverse safely. When this circuit is not functioning correctly, it can result in the gearshift lever being stuck in Park, preventing the vehicle from being driven.

OBDII Code B2707 Chevrolet - Gearshift Unlock Circuit Low
B2707 Chevrolet Code - Gearshift Unlock Circuit Low

Common Causes of B2707 Chevrolet

  1. Damaged wiring or connectors in the gearshift unlock circuit
  2. Faulty gearshift position sensor
  3. Malfunctioning brake light switch
  4. Problem with the body control module

Symptoms of B2707 Chevrolet

  1. Inability to shift out of Park
  2. Brake lights not working
  3. Gearshift lever feels stuck or difficult to move
  4. Warning light on the dashboard indicating a transmission or gearshift issue

How to Fix B2707 Chevrolet

  1. Perform a visual inspection of the gearshift unlock circuit wiring and connectors for any signs of damage. Repair or replace as necessary.
  2. Test the gearshift position sensor and brake light switch for proper functionality. Replace if faulty.
  3. Check the body control module for any error codes related to the gearshift unlock circuit. Reset or replace as needed.
  4. Clear the diagnostic trouble code from the vehicle's computer and test the gearshift lever for proper operation.

Cost to Fix B2707 Chevrolet

The typical repair costs for addressing a gearshift unlock circuit low voltage issue can range from $100 to $300, depending on the specific cause of the problem and the labor rates at the repair facility. Additional costs may be incurred if any components need to be replaced. It's advisable to consult with a trusted mechanic or dealership for a more accurate estimate based on your vehicle's make and model.

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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 B2707 Chevrolet Code

1. What are the common symptoms of OBDII code B2707 Gearshift Unlock Circuit Low in a Chevrolet?

- Common symptoms include difficulty shifting gears, inability to shift out of park, and intermittent or frequent gearshift unlocking issues.

2. What are some possible causes of the B2707 code in a Chevrolet?

- Potential causes of the Gearshift Unlock Circuit Low code include a faulty gearshift control module, damaged wiring or connectors in the gearshift circuit, or a malfunctioning gearshift position sensor.

3. How can I diagnose the B2707 code in my Chevrolet?

- Diagnosing the Gearshift Unlock Circuit Low code involves using a scan tool to retrieve the code, inspecting the gearshift control module and related wiring, and testing the gearshift position sensor for proper functionality.

4. Can I continue driving my Chevrolet with the B2707 code present?

- It is not recommended to drive your Chevrolet with the Gearshift Unlock Circuit Low code active, as it can lead to safety concerns and further damage to the transmission system.

5. How can I repair the B2707 code in my Chevrolet?

- Repairing the Gearshift Unlock Circuit Low code may involve replacing the gearshift control module, repairing damaged wiring or connectors, or recalibrating the gearshift position sensor.

6. Are there any DIY tips for fixing the B2707 code in a Chevrolet?

- DIY tips for addressing the Gearshift Unlock Circuit Low code include checking for loose or damaged wiring, ensuring proper connections in the gearshift circuit, and consulting the vehicle's service manual for specific troubleshooting steps.

7. Is the B2707 code a common issue in Chevrolet vehicles?

- The Gearshift Unlock Circuit Low code may occur in some Chevrolet models, particularly those equipped with electronic gearshift systems.

8. Can a mechanic reset the B2707 code without making any repairs?

- While a mechanic can clear the B2707 code from the vehicle's system, it is important to address the underlying issue causing the code to prevent it from reoccurring.

9. How much does it typically cost to repair the B2707 code in a Chevrolet?

- Repair costs for the Gearshift Unlock Circuit Low code in a Chevrolet can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Will the B2707 code cause my Chevrolet to fail an emissions test?

- The Gearshift Unlock Circuit Low code is not directly related to emissions, so it should not cause your Chevrolet to fail an emissions test. However, it is still recommended to address the issue promptly to ensure proper vehicle operation.

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