AutoCodes – Chrysler – B1A12 Chrysler

B1A12 Chrysler Code - Remote Keyless Entry Fob 3 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: B1A12 Chrysler indicates Remote Keyless Entry Fob 3 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 2,679

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 B1A12 Chrysler 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 B1A12 Chrysler - Remote Keyless Entry Fob 3 Battery Low - AutoCodes.com — B1A12 Chrysler Code - Remote Keyless Entry Fob 3 Battery Low

What does this mean?

What are the Possible Causes of the DTC B1A12 Chrysler?

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

How to Fix the DTC B1A12 Chrysler?

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 B1A12 Chrysler 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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Need Help with the Code?

Get the B1A12 Chrysler code diagnosed by a professional: Find a repair shop in your area

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 B1A12 Chrysler Code

1. What are the common symptoms of OBDII code B1A12 Chrysler related to Remote Keyless Entry Fob 3 Battery Low?

The common symptoms include difficulty in locking/unlocking the vehicle using the remote keyless entry fob, intermittent function of the key fob, and a message on the dashboard indicating a low key fob battery.

2. What are the possible causes of OBDII code B1A12 Chrysler for Remote Keyless Entry Fob 3 Battery Low?

The primary cause is a low or failing battery in the remote keyless entry fob. It could also be due to a faulty key fob, poor connection between the fob and the vehicle, or issues with the vehicle's receiver.

3. How can I diagnose the issue with OBDII code B1A12 Chrysler for Remote Keyless Entry Fob 3 Battery Low?

You can start by replacing the battery in the key fob with a new one. If the issue persists, try using a different key fob to see if the problem lies with a specific fob. Checking for any visible damage or corrosion on the fob's contacts and the vehicle's receiver can also help diagnose the issue.

4. Can I repair OBDII code B1A12 Chrysler for Remote Keyless Entry Fob 3 Battery Low myself?

Yes, in most cases, you can replace the battery in the key fob yourself. It's a simple process that usually involves opening the fob, removing the old battery, and inserting a new one. If the issue persists after battery replacement, you may need to consult a professional for further diagnosis and repair.

5. Are there any temporary solutions if I encounter OBDII code B1A12 Chrysler for Remote Keyless Entry Fob 3 Battery Low?

A temporary solution could be to manually unlock and lock the vehicle using the physical key instead of the remote keyless entry fob. However, it's important to address the low battery issue promptly to avoid being locked out of your vehicle in case the key fob stops working completely.

6. How often should I replace the battery in my remote keyless entry fob to prevent OBDII code B1A12 Chrysler for Remote Keyless Entry Fob 3 Battery Low?

It's recommended to replace the battery in your key fob every 1-2 years, depending on usage. Regularly checking the battery level and replacing it preemptively can help prevent issues related to a low key fob battery.

7. Can a weak car battery cause OBDII code B1A12 Chrysler for Remote Keyless Entry Fob 3 Battery Low?

While a weak car battery can affect various electrical components in the vehicle, it typically does not directly cause OBDII code B1A12 related to a low key fob battery. However, it's essential to ensure your car battery is in good condition to prevent any electrical issues.

8. Is it necessary to reprogram the key fob after replacing the battery to resolve OBDII code B1A12 Chrysler for Remote Keyless Entry Fob 3 Battery Low?

In most cases, replacing the battery in the key fob does not require reprogramming. However, if the issue persists after battery replacement, reprogramming the key fob may be necessary to ensure proper communication with the vehicle's receiver.

9. Can extreme temperatures affect the performance of the key fob and trigger OBDII code B1A12 Chrysler for Remote Keyless Entry Fob 3 Battery Low?

Yes, extreme temperatures can impact the performance of the key fob, especially the battery. Cold weather can cause the battery to drain faster, while hot weather can affect the overall function of the key fob. It's important to keep the key fob in moderate temperature conditions to maintain its optimal performance.

10. Are there aftermarket solutions available to address OBDII code B1A12 Chrysler for Remote Keyless Entry Fob 3 Battery Low?

There are aftermarket key fob battery replacement kits available for purchase, which include the necessary tools and batteries to replace the key fob battery yourself. Additionally, some automotive shops offer key fob testing and replacement services if you prefer professional assistance.