B310F Code - Keyless Entry Transmitter 8 Battery
Quick Answer
With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the Remote Control Door Lock Receiver (RCDLR), along with the commanded keyless entry function. Common causes include Low Keyless Entry Transmitter Battery, Faulty Keyless Entry Transmitter. 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
- B310F indicates Keyless Entry Transmitter 8 Battery.
- Common causes
- Common causes include Low Keyless Entry Transmitter Battery, Faulty Keyless Entry Transmitter.
- 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.
Code B310F Description
What are the Possible Causes of the DTC B310F?
- Low Keyless Entry Transmitter Battery
- Faulty Keyless Entry Transmitter
How to Fix the DTC B310F?
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 B310F 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.
Need more information about the B310F code?
Need more information on how to fix the B310F code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B310F code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B310F Buick — Keyless Entry Transmitter 8 Battery
- B310F Cadillac — Keyless Entry Transmitter 8 Battery
- B310F Chevrolet — Keyless Entry Transmitter 8 Battery
- B310F GMC — Keyless Entry Transmitter 8 Battery
Frequently Asked Questions about B310F Code
1. What does the OBDII code B310F mean?
B310F indicates an issue with the battery in Keyless Entry Transmitter 8, such as low voltage or a dead battery.
2. What are the symptoms of the B310F code?
Symptoms include the key fob not functioning properly, difficulty unlocking or locking the vehicle, or failure to start the car using the keyless system.
3. What causes the B310F code to appear?
The most common cause is a low or dead battery in the keyless entry transmitter. Damage to the key fob or interference with the signal can also trigger the code.
4. How do I fix the B310F code?
Replace the battery in the keyless entry transmitter with a fresh one. If the issue persists, inspect the key fob for physical damage or consider reprogramming it.
5. How do I know which transmitter is "Transmitter 8"?
Consult your vehicle's manual or a dealership to identify the specific transmitter associated with "Transmitter 8." This may vary by vehicle model.
6. Can I still start my car with the B310F code active?
In many vehicles, you can still start the car using the physical key or by holding the key fob near a designated area, such as the start button or steering column.
7. Will a weak key fob battery trigger the B310F code?
Yes, a weak or dying key fob battery is the most common cause of the B310F code.
8. Can I clear the B310F code after replacing the key fob battery?
In most cases, the code will clear automatically once the key fob is functioning properly. If not, you can use an OBDII scanner to clear it.
9. What kind of battery does a keyless entry transmitter typically use?
Most keyless entry transmitters use a coin cell battery, such as a CR2032 or CR2025. Check your vehicle's manual for the specific type.
10. Could the B310F code indicate a problem with the vehicle’s keyless entry system?
While the code typically points to a key fob issue, problems with the vehicle's keyless entry receiver or antenna could also cause it.
Discuss the causes and fixes for B310F OBDII Code
Code B310F comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
