AutoCodes – Generic – B1A24

B1A24 Code - Key Not Programmed

Quick Answer

Whenever a Fob-Integrated-Key (FOBIK) is inserted in the Ignition Node Module (IGNM), the Radio Frequency Hub (RF-Hub) performs a self test and resynchronization routine. Common causes include Fob-Integrated-Key (FOBIK) Not Programmed, Faulty Radio Frequency Hub (RF-Hub). 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: B1A24 indicates Key Not Programmed.
Common causes: Common causes include Fob-Integrated-Key (FOBIK) Not Programmed, Faulty Radio Frequency Hub (RF-Hub).
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 6,526

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1A24 Description

Whenever a Fob-Integrated-Key (FOBIK) is inserted in the Ignition Node Module (IGNM), the Radio Frequency Hub (RF-Hub) performs a self test and resynchronization routine. During the routine, the RF-Hub interrogates the FOBIK, performing various validity and performance tests. The repair of this fault condition relies on the programmed status of the FOBIK. During interrogation, the FOBIK sends a low frequency (LF) signal to the RF-Hub that includes the FOBIK identification information. This Diagnostic Trouble Code (DTC) sets if the RF-Hub receives the default, secret key status from a FOBIK. Once set, this DTC will remain active until a valid, programmed FOBIK is inserted in the IGNM and rotated through the ON position.

OBDII Code B1A24 - Key Not Programmed - AutoCodes.com — B1A24 Code - Key Not Programmed

What does this mean?

What are the Possible Causes of the DTC B1A24?

Fob-Integrated-Key (FOBIK) Not Programmed
Faulty Radio Frequency Hub (RF-Hub)

How to Fix the DTC B1A24?

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 B1A24 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 B1A24 code?

Need more information on how to fix the B1A24 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1A24 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1A24 Chrysler — Key Not Programmed
B1A24 Dodge — Key Not Programmed
B1A24 Jeep — Key Not Programmed
B1A24 RAM — Key Not Programmed

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 B1A24 Code

1. What are the common symptoms of OBDII code B1A24 (Key Not Programmed)?

- The common symptoms include the inability to start the vehicle, the ignition not turning, and a warning message on the dashboard indicating a key programming issue.

2. What are the possible causes of OBDII code B1A24?

- The code B1A24 is typically triggered when the vehicle's computer does not recognize the key being used, which can be due to an unprogrammed key, a faulty key fob, or a problem with the vehicle's immobilizer system.

3. How can I diagnose the OBDII code B1A24 (Key Not Programmed)?

- Diagnosis typically involves checking the key fob battery, trying a spare key if available, and using a diagnostic scanner to read the specific error codes stored in the vehicle's computer system.

4. Can I fix the OBDII code B1A24 issue myself?

- If the issue is related to an unprogrammed key, some vehicles may allow you to program the key yourself following specific instructions provided in the owner's manual. Otherwise, it may require a visit to a dealership or a qualified automotive locksmith for key programming.

5. Is it safe to continue driving with the OBDII code B1A24 present?

- It is not recommended to drive the vehicle with the B1A24 code, as it can lead to potential starting issues and may leave you stranded if the vehicle does not recognize the key.

6. How much does it typically cost to fix the OBDII code B1A24?

- The cost of fixing the B1A24 code can vary depending on the cause of the issue. Key programming by a dealership or locksmith may range from $50 to $200, while a faulty key fob replacement could cost around $100 to $400.

7. Can a low key fob battery trigger the OBDII code B1A24?

- Yes, a low key fob battery can cause communication issues between the key and the vehicle's immobilizer system, leading to the B1A24 code. It is recommended to replace the key fob battery as a first troubleshooting step.

8. Will disconnecting the car battery reset the OBDII code B1A24?

- Disconnecting the car battery may temporarily clear the code, but it is not a recommended solution as it does not address the root cause of the issue. It is best to diagnose and fix the underlying problem causing the B1A24 code.

9. Can a damaged key fob trigger the OBDII code B1A24?

- Yes, a damaged key fob can prevent proper communication with the vehicle's immobilizer system, triggering the B1A24 code. In such cases, replacing the key fob may be necessary to resolve the issue.

10. How long does it take to program a new key to resolve the OBDII code B1A24?

- Key programming procedures can vary depending on the vehicle make and model. It typically takes anywhere from a few minutes to an hour to program a new key and clear the B1A24 code from the system.