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B310E Chevrolet Code - Keyless Entry Transmitter 7 Battery

Quick Answer

The B310E diagnostic trouble code (DTC) specifically pertains to the keyless entry system of Chevrolet vehicles, indicating an issue with the battery of the keyless entry transmitter (often referred to as the key fob). Common causes include Depleted or weak battery within the keyless entry transmitter, Corrosion or damage to the battery contacts in the key fob, Faulty key fob circuitry or internal components. 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
B310E Chevrolet indicates Keyless Entry Transmitter 7 Battery.
Common causes
Common causes include Depleted or weak battery within the keyless entry transmitter, Corrosion or damage to the battery contacts in the key fob, Faulty key fob circuitry or internal components.
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 Oct 01, 2024
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Code B310E Chevrolet Description

The B310E diagnostic trouble code (DTC) specifically pertains to the keyless entry system of Chevrolet vehicles, indicating an issue with the battery of the keyless entry transmitter (often referred to as the key fob). This code is triggered when the vehicle’s onboard diagnostic system detects that the battery voltage of the key fob is below a certain threshold, which can lead to the key fob being unable to communicate effectively with the vehicle's electronic control unit (ECU).

OBDII Code B310E Chevrolet - Keyless Entry Transmitter 7 Battery
B310E Chevrolet Code - Keyless Entry Transmitter 7 Battery

Common Causes of B310E Chevrolet

  1. Depleted or weak battery within the keyless entry transmitter.
  2. Corrosion or damage to the battery contacts in the key fob.
  3. Faulty key fob circuitry or internal components.
  4. Environmental factors, such as extreme temperatures affecting battery performance.
  5. Interference from other electronic devices or systems that may disrupt the key fob's signal.

Symptoms of B310E Chevrolet

  1. Inability to unlock or lock the vehicle doors remotely using the key fob.
  2. Intermittent functionality of the key fob, requiring multiple presses to operate.
  3. Warning lights or messages on the vehicle’s dashboard indicating a key fob issue.
  4. Difficulty starting the vehicle if it uses a push-to-start system.
  5. Reduced range of the key fob, requiring closer proximity to the vehicle for operation.

How to Fix B310E Chevrolet

  1. Battery Replacement: The first step is to replace the battery in the key fob. This is typically a simple process that involves opening the fob casing and swapping out the old battery for a new one.
  2. Inspect Battery Contacts: After replacing the battery, inspect the contacts for corrosion or damage. Clean or replace the contacts as necessary to ensure a good connection.
  3. Test Key Fob Functionality: After reassembly, test the key fob to ensure that it operates as expected. If issues persist, further diagnostics may be required.
  4. Check for Signal Interference: If the key fob still does not function properly, check for any potential sources of signal interference, such as other electronic devices nearby.
  5. Reprogramming: In some cases, reprogramming the key fob may be necessary if the vehicle does not recognize the new battery. This typically requires specialized equipment or may need to be performed at a dealership.

Cost to Fix B310E Chevrolet

** The cost to resolve a B310E code primarily involves the replacement of the key fob battery, which can range from $5 to $20 for the battery itself. If additional repairs are needed, such as cleaning contacts or reprogramming the fob, labor costs can increase. The typical repair costs, including parts and labor, can range from $50 to $150.

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Information for Specific Chevrolet Models

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 B310E Chevrolet Code

1. What are common symptoms of OBDII code B310E in a Chevrolet related to the Keyless Entry Transmitter 7 Battery?

- Common symptoms include issues with the keyless entry system, such as the remote not working or intermittent functionality.

2. What could cause the OBDII code B310E in a Chevrolet related to the Keyless Entry Transmitter 7 Battery?

- The most common cause is a weak or failing battery in the key fob, which can lead to communication errors with the vehicle.

3. How can I diagnose the OBDII code B310E in a Chevrolet related to the Keyless Entry Transmitter 7 Battery?

- You can start by replacing the battery in the key fob and checking if the issue persists. If the problem continues, further diagnostics may be needed with specialized equipment.

4. Can I repair the OBDII code B310E in a Chevrolet related to the Keyless Entry Transmitter 7 Battery myself?

- Yes, replacing the battery in the key fob is a relatively simple and cost-effective repair that can often resolve the issue.

5. Are there any troubleshooting steps I can take before seeking professional help for the OBDII code B310E in a Chevrolet related to the Keyless Entry Transmitter 7 Battery?

- Yes, you can try replacing the battery in the key fob and ensuring it is properly reprogrammed to the vehicle before considering more extensive repairs.

6. Will the OBDII code B310E in a Chevrolet related to the Keyless Entry Transmitter 7 Battery cause any other problems with the vehicle?

- This code is specifically related to the keyless entry system and should not affect the overall performance or safety of the vehicle.

7. How do I reset the OBDII code B310E in a Chevrolet related to the Keyless Entry Transmitter 7 Battery after making repairs?

- Once you have addressed the underlying issue, you can use an OBDII scanner to clear the code and reset the system.

8. Is it necessary to visit a dealership for repairs related to the OBDII code B310E in a Chevrolet related to the Keyless Entry Transmitter 7 Battery?

- In most cases, you can perform the necessary repairs yourself or seek assistance from a local mechanic specializing in automotive electronics.

9. How long does a typical keyless entry transmitter battery last before needing replacement in a Chevrolet?

- The keyless entry transmitter battery in a Chevrolet key fob usually lasts around 2-3 years before needing to be replaced.

10. Can a faulty keyless entry transmitter battery cause other error codes to appear in the OBDII system of a Chevrolet?

- While it is possible for communication errors to trigger additional codes, the B310E code specifically relates to issues with the Keyless Entry Transmitter 7 Battery.

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