AutoCodes – Dodge – B1A28 Dodge

B1A28 Dodge Code - PCM Mismatch With SKIM

Quick Answer

For the engine to start, the Sentry Key Immobilizer (SKIM) feature of the Radio Frequency Hub (RF Hub) and the Powertrain Control Module (PCM) must successfully communicate data over the data bus. Common causes include Faulty Radio Frequency Hub (RF Hub), Faulty Powertrain Control Module (PCM). 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: B1A28 Dodge indicates PCM Mismatch With SKIM.
Common causes: Common causes include Faulty Radio Frequency Hub (RF Hub), Faulty Powertrain Control Module (PCM).
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 7,914

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 13, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1A28 Dodge Description

OBDII Code B1A28 Dodge - PCM Mismatch With SKIM - AutoCodes.com — B1A28 Dodge Code - PCM Mismatch With SKIM

What does this mean?

What are the Possible Causes of the DTC B1A28 Dodge?

Faulty Radio Frequency Hub (RF Hub)
Faulty Powertrain Control Module (PCM)

How to Fix the DTC B1A28 Dodge?

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 B1A28 Dodge 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 B1A28 Dodge Code

1. What does OBDII code B1A28 Dodge mean?

The code B1A28 indicates a PCM (Powertrain Control Module) mismatch with the SKIM (Sentry Key Immobilizer Module) in a Dodge vehicle.

2. What are the common symptoms of a PCM mismatch with SKIM?

Common symptoms include the vehicle not starting, the engine stalling, the security light flashing, and the inability to communicate with the PCM using a scan tool.

3. What are the possible causes of the PCM mismatch with SKIM code B1A28 in a Dodge?

This code can be triggered by issues such as a faulty PCM, a faulty SKIM module, a communication error between the PCM and SKIM, or a programming mismatch between the two modules.

4. How can I diagnose the PCM mismatch with SKIM issue in my Dodge?

A professional diagnostic scan tool capable of accessing the PCM and SKIM modules is needed to properly diagnose the problem. Checking for any stored trouble codes and performing a thorough inspection of the modules is recommended.

5. Can I drive my Dodge with the B1A28 code present?

It is not recommended to drive the vehicle with the B1A28 code active, as it can lead to potential issues like the engine stalling or the vehicle not starting. It's best to address the problem promptly.

6. How can I repair the PCM mismatch with SKIM issue in my Dodge?

Repair options may include reprogramming or updating the software in either the PCM or SKIM module, replacing a faulty module, or addressing any wiring or communication issues between the modules.

7. Is it possible to reset the B1A28 code in a Dodge without fixing the underlying issue?

While clearing the code may temporarily remove the warning light, the underlying problem causing the PCM mismatch with SKIM will persist. It's important to address the root cause to prevent further issues.

8. Can a DIY enthusiast fix the B1A28 code in a Dodge at home?

Depending on the underlying cause, some DIY enthusiasts with the necessary tools and knowledge may be able to address the PCM mismatch with SKIM issue at home. However, complex programming or module replacement may require professional assistance.

9. How much does it typically cost to repair the PCM mismatch with SKIM issue in a Dodge?

Repair costs can vary widely depending on the specific cause of the problem, the parts needed for replacement, and whether professional labor is required. It's recommended to obtain quotes from reputable mechanics or dealerships.

10. Will fixing the PCM mismatch with SKIM issue affect my vehicle's performance or reliability?

Resolving the B1A28 code should restore proper communication between the PCM and SKIM, ensuring your vehicle operates as intended. Addressing this issue promptly can help maintain the performance and reliability of your Dodge.