AutoCodes – Chrysler – B1A6C Chrysler

B1A6C Chrysler Code - Secret Key Mismatch

Quick Answer

Whenever a Fob-Integrated-Key (FOBIK) is inserted in the Wireless Ignition Node (WIN) basestation, the WIN performs a self test and resynchronization routine. Common causes include Faulty Fob-Integrated-Key (FOBIK), Faulty Wireless Ignition Node (WIN). 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: B1A6C Chrysler indicates Secret Key Mismatch.
Common causes: Common causes include Faulty Fob-Integrated-Key (FOBIK), Faulty Wireless Ignition Node (WIN).
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.

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Code Popularity 2,570

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 14, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
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Code B1A6C Chrysler Description

Whenever a Fob-Integrated-Key (FOBIK) is inserted in the Wireless Ignition Node (WIN) basestation, the WIN performs a self test and resynchronization routine. During the routine, the WIN interrogates the FOBIK for the secret key information and start the vehicle. The repair of this fault condition relies on whether the current secret key in the FOBIK is recognized by the WIN. During interrogation, the FOBIK sends a low frequency (LF) signal to the WIN that includes the current secret key.
This Diagnostic Trouble Code (DTC) sets if the WIN receives a secret key ID from the FOBIK that is not the correct secret key value stored in the WIN. This DTC will remain active until a valid, programmed FOBIK, with the correct secret key is inserted in the basestation and rotated through the ON position.

OBDII Code B1A6C Chrysler - Secret Key Mismatch - AutoCodes.com — B1A6C Chrysler Code - Secret Key Mismatch

What does this mean?

What are the Possible Causes of the DTC B1A6C Chrysler?

Faulty Fob-Integrated-Key (FOBIK)
Faulty Wireless Ignition Node (WIN)

How to Fix the DTC B1A6C 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 B1A6C 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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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 B1A6C Chrysler Code

1. What is OBDII code B1A6C Chrysler?

The B1A6C code in Chrysler vehicles indicates a Secret Key Mismatch issue related to the security system.

2. What are the common symptoms of a Secret Key Mismatch error?

Common symptoms include issues with starting the vehicle, security indicator light flashing, and the engine stalling.

3. What causes the Secret Key Mismatch error (B1A6C) in Chrysler vehicles?

The Secret Key Mismatch error can be caused by a faulty key fob, a problem with the key transponder, or a malfunction in the vehicle's security system.

4. How can I diagnose a Secret Key Mismatch problem in my Chrysler car?

Diagnosing the issue usually involves using a professional OBDII scanner to read the specific error code, checking the key fob battery, and ensuring the key is programmed correctly.

5. Can I fix the Secret Key Mismatch error myself?

Depending on the root cause, you may be able to fix the issue yourself by replacing the key fob battery, reprogramming the key, or seeking professional help to diagnose and repair the security system.

6. Are there any temporary solutions if I encounter the Secret Key Mismatch error while driving?

If you experience the Secret Key Mismatch error while driving, try restarting the vehicle, ensuring the key is inserted properly, and checking for any visible issues with the key fob or transponder.

7. How much does it cost to repair a Secret Key Mismatch issue in a Chrysler vehicle?

The cost of repairing a Secret Key Mismatch problem can vary depending on the root cause, but it may involve replacing the key fob, reprogramming the key, or addressing issues with the security system, potentially ranging from affordable to more costly repairs.

8. Can a Secret Key Mismatch error affect the overall performance of the vehicle?

While the Secret Key Mismatch error itself may not directly impact the performance of the vehicle, unresolved issues with the security system can lead to starting problems and potential immobilization of the vehicle.

9. Is it safe to continue driving with a Secret Key Mismatch error code?

It is not recommended to drive with a Secret Key Mismatch error, as it can lead to potential starting issues and possible stalling of the vehicle, posing a safety risk on the road.

10. How can I prevent Secret Key Mismatch issues in my Chrysler car?

To prevent Secret Key Mismatch problems, ensure your key fob battery is in good condition, store keys away from electronic interference, and have the security system checked regularly by a professional.