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Engine-Codes – Generic – B310D

B310D Code - Keyless Entry Transmitter 6 Battery

Quick Answer

The diagnostic code B310D indicates an issue with the battery in the keyless entry transmitter number 6. Common causes include Low battery in the keyless entry transmitter, Faulty keyless entry transmitter, Interference from other electronic devices. 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
B310D indicates Keyless Entry Transmitter 6 Battery.
Common causes
Common causes include Low battery in the keyless entry transmitter, Faulty keyless entry transmitter, Interference from other electronic devices.
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 07, 2024
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Code B310D Description

The diagnostic code B310D indicates an issue with the battery in the keyless entry transmitter number 6. Keyless entry transmitters are devices that allow you to remotely lock and unlock your vehicle, as well as perform other functions such as opening the trunk or activating the panic alarm. When the battery in the transmitter is low or failing, it can cause a range of problems with the keyless entry system.

OBDII Code B310D - Keyless Entry Transmitter 6 Battery
B310D Code - Keyless Entry Transmitter 6 Battery

Common Causes of B310D

  1. Low battery in the keyless entry transmitter
  2. Faulty keyless entry transmitter
  3. Interference from other electronic devices
  4. Water damage to the keyless entry transmitter
  5. Wiring issues in the keyless entry system

Symptoms of B310D

  1. Inconsistent or non-responsive keyless entry system
  2. Having to be very close to the vehicle for the remote to work
  3. Remote not working at all
  4. Difficulty unlocking or locking the vehicle using the keyless entry system
  5. Warning light on the dashboard related to the keyless entry system

How to Fix B310D

  1. Replace the battery in the keyless entry transmitter
  2. Test the transmitter to ensure it is functioning properly
  3. Check for any wiring or connection issues in the keyless entry system
  4. Reprogram the keyless entry system if necessary
  5. Replace the keyless entry transmitter if it is faulty

Cost to Fix B310D

The cost of repairing a low battery in a keyless entry transmitter can vary depending on the make and model of the vehicle, as well as the specific transmitter being used. Typically, replacing the battery in the transmitter can cost between $5 to $20 for the battery itself. If the transmitter needs to be replaced, the cost can range from $50 to $200 for the part, not including labor. Labor costs can vary but are typically between $80 to $150 per hour. Additional charges may apply for diagnosis time and programming of the new transmitter. It's recommended to consult with a professional mechanic to get an accurate estimate for your specific vehicle.

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Code B310D Information for Specific Makes

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 B310D Code

1. What does the OBDII code B310D mean?

The B310D code indicates an issue with the battery in Keyless Entry Transmitter 6, suggesting it may be low, depleted, or malfunctioning.

2. What are the common symptoms of a B310D code?

Symptoms include difficulty unlocking or locking doors remotely, failure of the keyless entry system, or intermittent key fob functionality.

3. What causes the B310D code to appear?

Common causes include a dead or weak key fob battery, poor battery contact, or a malfunction in the keyless entry transmitter.

4. How can I fix the B310D code?

Replace the key fob battery with a new one, ensuring it is installed correctly. If the issue persists, inspect for damage or consider reprogramming the transmitter.

5. What type of battery does a keyless entry transmitter typically use?

Most keyless entry transmitters use small coin cell batteries, such as CR2032 or CR2025, but you should check your vehicle’s owner manual for the exact type.

6. Do I need to reprogram the key fob after replacing the battery?

In most cases, reprogramming is not necessary after replacing the battery, but consult your vehicle’s manual if the fob still doesn’t work.

7. Can a low key fob battery trigger other warning lights or codes?

While it’s uncommon, a low key fob battery might cause other related codes or warnings if the vehicle misinterprets the signal.

8. How can I test the battery in my keyless entry transmitter?

Use a multimeter to check the voltage of the battery. A healthy coin cell battery typically has around 3 volts.

9. What should I do if replacing the battery doesn’t clear the B310D code?

If the issue persists, inspect the keyless entry transmitter for damage or have it tested by a professional. You may also need to check for receiver or wiring issues.

10. Can extreme temperatures affect the key fob battery and cause a B310D code?

Yes, extreme heat or cold can reduce battery performance and potentially trigger the B310D code if the transmitter cannot function properly.

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