AutoCodes – Ford – B2A20 Ford

B2A20 Ford Code - Ignition Stuck in Start

Quick Answer

The Instrument Cluster (IC) receives both the RUN/START and keep alive voltage from the Smart Junction Box (SJB). Common causes include Faulty Smart Junction Box (SJB), Smart Junction Box (SJB) harness is open or shorted, Smart Junction Box (SJB) 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: B2A20 Ford indicates Ignition Stuck in Start.
Common causes: Common causes include Faulty Smart Junction Box (SJB), Smart Junction Box (SJB) harness is open or shorted, Smart Junction Box (SJB) 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.

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Code Popularity 10,850

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 Feb 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2A20 Ford Description

The Instrument Cluster (IC) receives both the RUN/START and keep alive voltage from the Smart Junction Box (SJB). The Diagnostic Trouble Code (DTC) sets in the IC if the ignition START message sent from the SJB is stuck in the START position for greater than 15 seconds.

OBDII Code B2A20 Ford - Ignition Stuck in Start - AutoCodes.com — B2A20 Ford Code - Ignition Stuck in Start

What does this mean?

What are the Possible Causes of the DTC B2A20 Ford?

Faulty Smart Junction Box (SJB)
Smart Junction Box (SJB) harness is open or shorted
Smart Junction Box (SJB) circuit poor electrical connection
Faulty Instrument Cluster (IC)

How to Fix the DTC B2A20 Ford?

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 B2A20 Ford 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 B2A20 Ford code?

Need more information on how to fix the B2A20 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2A20 Ford 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 B2A20 Ford Code

1. What are the common symptoms of OBDII code B2A20 Ford, Ignition Stuck in Start?

The common symptoms include the ignition key getting stuck in the start position, difficulty turning the key, and the engine not starting even after turning the key.

2. What can cause the OBDII code B2A20 Ford, Ignition Stuck in Start?

The code B2A20 can be triggered by a faulty ignition switch, a problem with the starter motor, issues with the key cylinder, or wiring issues in the ignition system.

3. How can I diagnose the OBDII code B2A20 Ford, Ignition Stuck in Start?

Diagnosing this code involves checking the ignition switch, testing the starter motor, inspecting the key cylinder, and examining the wiring for any faults or damage.

4. Is it safe to drive with the OBDII code B2A20 Ford, Ignition Stuck in Start active?

It is not safe to drive with the ignition stuck in the start position as it can lead to potential safety hazards and further damage to the vehicle's ignition system.

5. Can I repair the OBDII code B2A20 Ford, Ignition Stuck in Start myself?

While some basic troubleshooting steps can be performed by DIY enthusiasts, it is recommended to have a professional mechanic diagnose and repair the issue to ensure proper and safe repair.

6. What are some tips for repairing the OBDII code B2A20 Ford, Ignition Stuck in Start?

Some repair tips include checking for any loose connections, ensuring the battery is fully charged, inspecting the ignition switch for wear, and testing the starter motor for proper functionality.

7. How much does it cost to repair the OBDII code B2A20 Ford, Ignition Stuck in Start?

The cost of repairing this issue can vary depending on the root cause of the problem, but it may involve replacing the ignition switch, starter motor, or key cylinder, which can range from a few hundred to a few thousand dollars.

8. Can a low battery cause the OBDII code B2A20 Ford, Ignition Stuck in Start?

Yes, a low or weak battery can sometimes cause issues with the ignition system, leading to symptoms like the ignition getting stuck in the start position.

9. Are there any recalls related to the OBDII code B2A20 Ford, Ignition Stuck in Start?

Recalls related to this specific OBDII code may vary, so it is recommended to check with Ford or the National Highway Traffic Safety Administration (NHTSA) for any relevant recall information.

10. How urgent is it to address the OBDII code B2A20 Ford, Ignition Stuck in Start?

It is important to address this issue promptly to avoid being stranded due to the ignition not functioning properly. Ignoring the problem can lead to further damage and inconvenience.