AutoCodes – Generic – B1A11

B1A11 Code - Remote Keyless Entry Fob 2 Battery Low

Quick Answer

The Totally Integrated Power Module (TIPM) monitors the Remote Keyless Entry (RKE) Fob. Common causes include Low Keyless Entry Fob (RKE) Transmitter Battery, Faulty Keyless Entry Fob (RKE) Transmitter, Faulty Totally Integrated Power Module (TIPM). Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1A11 indicates Remote Keyless Entry Fob 2 Battery Low.
Common causes: Common causes include Low Keyless Entry Fob (RKE) Transmitter Battery, Faulty Keyless Entry Fob (RKE) Transmitter, Faulty Totally Integrated Power Module (TIPM).
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 10,815

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Basic DIY (1 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 06, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1A11 Description

The Totally Integrated Power Module (TIPM) monitors the Remote Keyless Entry (RKE) Fob. The TIPM sets the OBDII code when the Wireless Ignition Node (WIN) senses that the RKE transmitter signal is not as strong as it ought to be.

OBDII Code B1A11 - Remote Keyless Entry Fob 2 Battery Low - AutoCodes.com — B1A11 Code - Remote Keyless Entry Fob 2 Battery Low

What does this mean?

What are the Possible Causes of the DTC B1A11?

Low Keyless Entry Fob (RKE) Transmitter Battery
Faulty Keyless Entry Fob (RKE) Transmitter
Faulty Totally Integrated Power Module (TIPM)

How to Fix the DTC B1A11?

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 B1A11 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 B1A11 code?

Need more information on how to fix the B1A11 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1A11 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1A11 Chrysler — Remote Keyless Entry Fob 2 Battery Low
B1A11 Dodge — Remote Keyless Entry Fob 2 Battery Low
B1A11 Ford — Speaker 11 General Electric Failure
B1A11 Jeep — Remote Keyless Entry Fob 2 Battery Low
B1A11 Lincoln — Speaker 11 General Electric Failure
B1A11 Mercury — Speaker 11 General Electric Failure
B1A11 RAM — Remote Keyless Entry Fob 2 Battery Low

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 B1A11 Code

1. What are the common symptoms of OBDII code B1A11 (Remote Keyless Entry Fob 2 Battery Low)?

- The common symptoms include difficulty in using the remote keyless entry system, intermittent operation of the key fob, and notifications on the vehicle dashboard indicating low battery on the key fob.

2. What typically causes the OBDII code B1A11 to be triggered?

- The code B1A11 is usually triggered when the battery in the remote keyless entry fob is low or needs replacement.

3. How can I diagnose if the remote keyless entry fob battery is truly low?

- You can try replacing the battery in the key fob with a new one to see if the symptoms disappear. If the issue persists after changing the battery, further diagnosis may be needed.

4. What is the recommended repair for OBDII code B1A11?

- The recommended repair is to replace the battery in the remote keyless entry fob with a new one. This should resolve the issue of the low battery warning and restore proper functioning of the key fob.

5. Can I replace the remote keyless entry fob battery myself?

- Yes, replacing the battery in the key fob is usually a straightforward process. You can refer to the vehicle's owner's manual for instructions on how to safely replace the battery.

6. What type of battery is typically used in remote keyless entry fobs?

- Remote keyless entry fobs commonly use coin cell batteries, such as CR2032 or CR2025, depending on the make and model of the vehicle.

7. Is it necessary to reprogram the remote keyless entry fob after replacing the battery?

- In most cases, replacing the battery in the key fob does not require reprogramming. The key fob should resume normal operation once the new battery is installed.

8. What should I do if replacing the battery does not fix the issue with the remote keyless entry fob?

- If replacing the battery does not resolve the problem, there may be an underlying issue with the key fob itself or the vehicle's keyless entry system. It is recommended to consult a professional technician for further diagnosis and repair.

9. Can a low battery in the remote keyless entry fob affect other vehicle systems?

- A low battery in the key fob typically only affects the operation of the remote keyless entry system and should not impact other vehicle systems.

10. How often should I replace the battery in my remote keyless entry fob?

- It is recommended to replace the battery in the key fob as soon as you notice any symptoms of a low battery or at least every 1-2 years as a preventative measure.