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B2228 Jeep Code - Sentry Key Remote Entry Module Internal

Quick Answer

The B2228 diagnostic trouble code (DTC) is specific to Jeep vehicles and indicates a malfunction within the Sentry Key Remote Entry Module (SKREEM). Common causes include Faulty SKREEM Module: The internal circuitry of the module may have failed due to age or manufacturing defects, Electrical Issues: Wiring problems, such as shorts or open circuits in the connections to the SKREEM, can trigger this code, Key Fob Malfunction: A defective key fob that fails to communicate properly with the SKREEM can lead to this issue. 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
B2228 Jeep indicates Sentry Key Remote Entry Module Internal.
Common causes
Common causes include Faulty SKREEM Module: The internal circuitry of the module may have failed due to age or manufacturing defects, Electrical Issues: Wiring problems, such as shorts or open circuits in the connections to the SKREEM, can trigger this code, Key Fob Malfunction: A defective key fob that fails to communicate properly with the SKREEM can lead to this issue.
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.
What is this?
Table of contents Created and updated by William Orellana on Oct 17, 2024
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Code B2228 Jeep Description

The B2228 diagnostic trouble code (DTC) is specific to Jeep vehicles and indicates a malfunction within the Sentry Key Remote Entry Module (SKREEM). This module is integral to the vehicle's security system, responsible for recognizing the key fob's signal and enabling the vehicle's ignition system. When this code is triggered, it typically signifies that the SKREEM has detected an internal fault, which can prevent the vehicle from starting or may lead to intermittent issues with remote keyless entry functionality.

OBDII Code B2228 Jeep - Sentry Key Remote Entry Module Internal
B2228 Jeep Code - Sentry Key Remote Entry Module Internal

Common Causes of B2228 Jeep

  1. Faulty SKREEM Module: The internal circuitry of the module may have failed due to age or manufacturing defects.
  2. Electrical Issues: Wiring problems, such as shorts or open circuits in the connections to the SKREEM, can trigger this code.
  3. Key Fob Malfunction: A defective key fob that fails to communicate properly with the SKREEM can lead to this issue.
  4. Software Glitches: Corrupted software within the SKREEM can cause it to misinterpret signals from the key fob.
  5. Environmental Damage: Exposure to moisture or corrosion can damage the SKREEM and its connections, leading to failure.

Symptoms of B2228 Jeep

  1. No Start Condition: The vehicle may not start at all, with no response when the ignition is turned.
  2. Intermittent Key Fob Functionality: The remote keyless entry may work sporadically or not at all.
  3. Security Indicator Light: The security light on the dashboard may remain illuminated or flash, indicating a problem with the anti-theft system.
  4. Engine Cranking Issues: The engine may crank but fail to start, suggesting a communication issue between the key fob and the SKREEM.
  5. Error Messages: The vehicle's onboard computer may display error messages related to the key fob or security system.

How to Fix B2228 Jeep

  1. Diagnostic Scan: Begin by using an OBD-II scanner to confirm the B2228 code and check for any additional codes that may provide further insights.
  2. Inspect Wiring and Connectors: Thoroughly examine the wiring harness and connectors related to the SKREEM for signs of damage, corrosion, or loose connections.
  3. Test Key Fob: Verify the functionality of the key fob, including battery condition and signal transmission, to ensure it is not the source of the problem.
  4. Replace SKREEM Module: If the module is determined to be faulty, replacing it with a new or refurbished unit is necessary. Reprogramming may be required to sync the new module with the vehicle's security system.
  5. Clear Codes and Test Drive: After repairs, clear the diagnostic codes and perform a test drive to ensure the issue is resolved and that the vehicle operates normally.

Cost to Fix B2228 Jeep

The cost to repair a B2228 code can vary widely based on the specific diagnosis and repair needed. On average, replacing the SKREEM module can range from $300 to $800, including parts and labor. Labor costs typically range from $80 to $150 per hour, depending on the shop's location and expertise. In metropolitan areas or dealerships, rates may be higher, while independent shops often offer more competitive pricing. It's advisable for vehicle owners to obtain multiple estimates and check local labor rates for a more accurate cost assessment.

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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 B2228 Jeep Code

1. What are the common symptoms of OBDII code B2228 in a Jeep related to the Sentry Key Remote Entry Module Internal?

- Common symptoms include issues with the remote keyless entry system, such as the key fob not working or difficulty locking/unlocking the vehicle.

2. What are the possible causes of OBDII code B2228 in a Jeep?

- The code B2228 typically indicates a problem with the Sentry Key Remote Entry Module Internal, which could be caused by a faulty module, wiring issues, or a drained battery in the key fob.

3. How can I diagnose the OBDII code B2228 in my Jeep?

- Diagnosing this code usually involves checking the connections to the Sentry Key Remote Entry Module, testing the key fob battery, and inspecting the wiring for any damage or corrosion.

4. Can I repair OBDII code B2228 in my Jeep myself?

- Depending on the exact cause, you may be able to repair the issue yourself by replacing the key fob battery, checking and repairing any damaged wiring, or replacing the Sentry Key Remote Entry Module.

5. Is it safe to continue driving my Jeep with OBDII code B2228 present?

- While the vehicle should still be safe to drive with this code, it's recommended to address the issue promptly to ensure the proper functioning of the remote keyless entry system.

6. How much does it typically cost to repair OBDII code B2228 in a Jeep?

- The cost of repairing this code can vary depending on the cause of the issue. Simple fixes like replacing the key fob battery may cost around $5-$20, while replacing the Sentry Key Remote Entry Module could cost a few hundred dollars.

7. Will resetting the OBDII code B2228 make it go away permanently?

- Resetting the code may temporarily clear the warning, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces.

8. Can extreme weather conditions affect the occurrence of OBDII code B2228 in a Jeep?

- Yes, extreme temperatures or humidity levels can sometimes affect the performance of the key fob or the Sentry Key Remote Entry Module, potentially leading to the triggering of code B2228.

9. Are there any preventative measures I can take to avoid OBDII code B2228 in my Jeep?

- Regularly checking and replacing the key fob battery, keeping the key fob dry and clean, and inspecting the wiring for any signs of wear can help prevent issues that may trigger code B2228.

10. How long does it take to repair OBDII code B2228 in a Jeep?

- The repair time can vary depending on the exact cause of the issue. Simple fixes like replacing the key fob battery can be done in a few minutes, while more complex repairs may take a few hours at a repair shop.

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