B310E Cadillac Code - Keyless Entry Transmitter 7 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
- B310E Cadillac indicates Keyless Entry Transmitter 7 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 B310E Cadillac Description
What are the Possible Causes of the DTC B310E Cadillac?
- Low Keyless Entry Transmitter Battery
- Faulty Keyless Entry Transmitter
How to Fix the DTC B310E Cadillac?
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 B310E Cadillac 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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Frequently Asked Questions about B310E Cadillac Code
1. What does the OBDII code B310E mean on a Cadillac?
The B310E code indicates an issue with the battery in Keyless Entry Transmitter 7, such as low voltage or failure.
2. What are the common symptoms of the B310E code?
Symptoms may include difficulty unlocking or starting the vehicle, reduced key fob range, or an inoperative key fob.
3. What causes the B310E code to appear?
The most common cause is a dead or weak battery in the keyless entry transmitter, but it could also be due to a damaged transmitter or a communication issue.
4. How can I fix the B310E code on my Cadillac?
Replace the battery in Keyless Entry Transmitter 7. If the issue persists, inspect the transmitter for damage or have it reprogrammed.
5. What type of battery is used in a Cadillac keyless entry transmitter?
Most Cadillac key fobs use a CR2032 or similar coin-cell battery, but check your owner’s manual for the exact type.
6. Can I clear the B310E code without replacing the battery?
Clearing the code without addressing the underlying issue is not recommended, as it will likely reappear until the problem is resolved.
7. How do I know which transmitter is Keyless Entry Transmitter 7?
The number corresponds to the specific key fob assigned to that slot during programming. If unsure, test each key fob or consult a dealership.
8. What tools are needed to replace the key fob battery?
You typically need a small flathead screwdriver to open the key fob case and a replacement battery.
9. Could the B310E code indicate a problem other than a low battery?
Yes, it could also indicate a damaged key fob, a programming error, or interference with the transmitter’s signal.
10. Will a weak transmitter battery affect the push-to-start functionality?
Yes, a weak or dead battery in the key fob can prevent the vehicle’s push-to-start system from recognizing the key.
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