AutoCodes – Chrysler – B1A7D Chrysler

B1A7D Chrysler Code - Start Button

Quick Answer

Any time the Start/Stop Button is pressed, the Radio Frequency Hub (RF Hub) will check the Security K Line Communication circuit and the Ignition Switch Sense circuit. Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition Switch circuit poor electrical connection. 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: B1A7D Chrysler indicates Start Button.
Common causes: Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition Switch circuit poor electrical connection.
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 1,082

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
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

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

Code B1A7D Chrysler Description

Any time the Start/Stop Button is pressed, the Radio Frequency Hub (RF Hub) will check the Security K Line Communication circuit and the Ignition Switch Sense circuit. It samples these circuits every 10ms. while the button is pressed. If these two circuits do not match, during a button press, this code will set or if the Security K Line Communication circuit and the Ignition Switch Position Signal circuit match, during a button press, but are On for longer than 25 seconds.

OBDII Code B1A7D Chrysler - Start Button - AutoCodes.com — B1A7D Chrysler Code - Start Button

What does this mean?

What are the Possible Causes of the DTC B1A7D Chrysler?

Faulty Ignition Switch
Ignition Switch harness is open or shorted
Ignition Switch circuit poor electrical connection
Faulty Keyless Ignition Nod (KIN)
Faulty Ignition Node Module (IGNM)

How to Fix the DTC B1A7D 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 does this mean?

Code Tech Notes

B1A7D-01 START BUTTON GENERAL ELECTRICAL FAILURE
B1A7D-2A START BUTTON STUCK

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1A7D 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.

Need more information about the B1A7D Chrysler code?

Need more information on how to fix the B1A7D Chrysler code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1A7D 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 B1A7D Chrysler Code

1. What does OBDII code B1A7D for Chrysler Start Button mean?

The B1A7D code typically indicates a malfunction related to the start button system in a Chrysler vehicle.

2. What are the common symptoms of OBDII code B1A7D in a Chrysler?

Common symptoms may include issues with starting the vehicle, the start button not functioning properly, or the vehicle failing to start at all.

3. What are the possible causes of OBDII code B1A7D in a Chrysler?

Causes of the B1A7D code can include a faulty start button, wiring issues, a weak or dead battery, or problems with the vehicle's security system.

4. How can I diagnose the OBDII code B1A7D in my Chrysler?

Diagnosing the B1A7D code may involve using an OBDII scanner to retrieve the code, checking the start button wiring and connections, testing the battery, and inspecting the security system.

5. Can I still drive my Chrysler with the OBDII code B1A7D present?

It is not recommended to drive your vehicle with the B1A7D code unresolved, as it may lead to potential starting issues or other related problems while driving.

6. How can I repair OBDII code B1A7D in my Chrysler?

Repairing the B1A7D code may involve replacing the faulty start button, repairing any damaged wiring, ensuring the battery is in good condition, and addressing any security system issues.

7. Is it possible to reset the OBDII code B1A7D in a Chrysler without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it is crucial to address the root cause of the problem to prevent it from reoccurring.

8. Will replacing the start button fix the OBDII code B1A7D in my Chrysler?

Replacing the start button may resolve the B1A7D code if the issue is indeed related to a faulty start button. However, it's essential to diagnose the problem accurately before replacing any components.

9. Can a DIY enthusiast fix the OBDII code B1A7D in a Chrysler?

Depending on your skill level and access to tools, you may be able to address the B1A7D code yourself by following repair guides or seeking assistance from online forums. However, complex issues may require professional diagnosis and repair.

10. How much does it cost to repair OBDII code B1A7D in a Chrysler?

The cost of repairing the B1A7D code can vary depending on the underlying issue, the need for parts replacement, and labor charges. It is advisable to obtain quotes from different mechanics or service centers for an accurate estimate.