AutoCodesRAM – B1A27 RAM

B1A27 RAM Code - SKREEM Programming Performance

Quick Answer

The Diagnostic Trouble Code (DTC) is set when a key is inserted in the ignition switch and is turned to the Run/Start position, the Wireless Control Module (WCM) performs a self-test and re-synchronization routine. Common causes include Faulty Wireless Control Module (WCM), Wireless Control Module (WCM) harness is open or shorted, Wireless Control Module (WCM) 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
B1A27 RAM indicates SKREEM Programming Performance.
Common causes
Common causes include Faulty Wireless Control Module (WCM), Wireless Control Module (WCM) harness is open or shorted, Wireless Control Module (WCM) 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,028
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 13, 2019
💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1A27 RAM Description

The Diagnostic Trouble Code (DTC) is set when a key is inserted in the ignition switch and is turned to the Run/Start position, the Wireless Control Module (WCM) performs a self-test and re-synchronization routine. During this routine, the WCM interrogates the key, performing various validity and performance tests.
OBDII Code B1A27 RAM - SKREEM Programming Performance - AutoCodes.com
B1A27 RAM Code - SKREEM Programming Performance

What are the Possible Causes of the DTC B1A27 RAM?

  • Faulty Wireless Control Module (WCM)
  • Wireless Control Module (WCM) harness is open or shorted
  • Wireless Control Module (WCM) circuit poor electrical connection
  • Faulty Sentry Key Remote Entry Module (SKREEM)

How to Fix the DTC B1A27 RAM?

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 B1A27 RAM 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 B1A27 RAM code?

Need more information on how to fix the B1A27 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1A27 RAM 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 B1A27 RAM Code

1. What does the OBDII code B1A27 RAM mean?

The B1A27 code refers to an issue with the SKREEM (Sentry Key Remote Entry Module) programming performance, indicating a malfunction in the module's ability to communicate or function properly.

2. What are the common symptoms of the B1A27 code?

Symptoms include failure to start the vehicle, the security or immobilizer light staying illuminated, and issues with remote key fob operation.

3. What causes the B1A27 code to appear?

The most common causes include incorrect SKREEM programming, a defective SKREEM module, key fob issues, or wiring and communication faults between the SKREEM and other modules.

4. Can a weak battery cause the B1A27 code?

Yes, a weak or failing battery can disrupt communication or power to the SKREEM module, potentially triggering the code.

5. How is the B1A27 code diagnosed?

A technician will use a scan tool to check for related codes, inspect the SKREEM module and its wiring, and verify the programming and functionality of the key fob and module.

6. Can the B1A27 code be fixed by reprogramming the SKREEM module?

In some cases, reprogramming the SKREEM module with the correct software or updating it can resolve the issue, provided there are no hardware faults.

7. Does replacing the SKREEM module fix the B1A27 code?

Replacing the SKREEM module may fix the issue if the module is defective, but it must be properly programmed to match the vehicle and key fobs.

8. How much does it cost to repair the B1A27 code?

Repair costs vary depending on the issue, but reprogramming may cost $100–$200, while replacing the SKREEM module can cost $400–$800 including labor and programming.

9. Can I drive my car with the B1A27 code?

In most cases, the vehicle may not start or function properly due to the immobilizer system, so driving with this code may not be possible.

10. Do I need a dealership to fix the B1A27 code?

While some independent shops have the tools to reprogram or replace the SKREEM module, dealerships are often better equipped to handle immobilizer system issues.

Discuss the causes and fixes for B1A27 RAM OBDII Code

Code B1A27 RAM comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play