Engine-CodesDodge – B198A Dodge

B198A Dodge Code - All Door Secondary Unlock Control Circuit Low

Quick Answer

The B198A diagnostic trouble code (DTC) for Dodge vehicles indicates that there is a low voltage condition detected in the all door secondary unlock control circuit. Common causes include Damaged wiring in the all door secondary unlock control circuit, Faulty door lock actuators, Malfunctioning body control module (BCM). 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
B198A Dodge indicates All Door Secondary Unlock Control Circuit Low.
Common causes
Common causes include Damaged wiring in the all door secondary unlock control circuit, Faulty door lock actuators, Malfunctioning body control module (BCM).
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.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code B198A Dodge Description

The B198A diagnostic trouble code (DTC) for Dodge vehicles indicates that there is a low voltage condition detected in the all door secondary unlock control circuit. This circuit is responsible for controlling the secondary unlock function of all the doors in the vehicle. When this code is triggered, it means that there is a problem with the electrical signal that controls the unlocking of the doors, which can affect the overall functionality of the vehicle.

OBDII Code B198A Dodge - All Door Secondary Unlock Control Circuit Low
B198A Dodge Code - All Door Secondary Unlock Control Circuit Low

Common Causes of B198A Dodge

  1. Damaged wiring in the all door secondary unlock control circuit.
  2. Faulty door lock actuators.
  3. Malfunctioning body control module (BCM).
  4. Blown fuse related to the door unlock system.
  5. Corrosion or poor connections in the electrical system.

Symptoms of B198A Dodge

  1. Doors not unlocking when using the key fob or interior door lock/unlock button.
  2. Doors unlocking intermittently or unpredictably.
  3. Inability to unlock all doors simultaneously.
  4. Warning light on the dashboard indicating a door unlock system malfunction.

How to Fix B198A Dodge

  1. Begin by conducting a thorough inspection of the wiring harness and connectors in the all door secondary unlock control circuit to check for any damage or corrosion.
  2. Test the door lock actuators to determine if they are functioning properly. Replace any faulty actuators as needed.
  3. Check the body control module (BCM) for any signs of malfunction and replace if necessary.
  4. Inspect and replace any blown fuses related to the door unlock system.
  5. Clear the DTC from the vehicle's memory using a diagnostic scan tool and test the door unlock system to ensure proper functionality.

Cost to Fix B198A Dodge

The typical repair costs for addressing the B198A code can vary depending on the specific cause of the issue and the labor rates in your area. In general, the cost of parts such as door lock actuators, wiring harnesses, or a new BCM can range from $100 to $500 or more. Labor costs can add an additional $100 to $300 or more, depending on the complexity of the repair and the shop's hourly rates. It's recommended to consult with a qualified mechanic or dealership to get an accurate estimate based on your vehicle's make and model. Keep in mind that diagnostic time and labor rates can vary, so it's advisable to inquire about these costs before proceeding with the repair.

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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 B198A Dodge Code

1. What are the common symptoms of OBDII code B198A in a Dodge related to the All Door Secondary Unlock Control Circuit Low?

- Common symptoms include issues with the power door locks not functioning properly, failure of the remote keyless entry system, and potential difficulty unlocking all doors simultaneously.

2. What are some possible causes of the All Door Secondary Unlock Control Circuit Low OBDII code in a Dodge?

- Causes may include damaged wiring or connectors in the door lock circuit, a faulty door lock actuator, a malfunctioning body control module (BCM), or issues with the remote keyless entry module.

3. How can I diagnose the All Door Secondary Unlock Control Circuit Low code in my Dodge?

- Diagnosis usually involves checking the wiring and connectors in the door lock circuit for damage or corrosion, testing the door lock actuators, and using a scan tool to communicate with the BCM and check for any related trouble codes.

4. Can I repair the All Door Secondary Unlock Control Circuit Low issue in my Dodge myself?

- Depending on your level of automotive expertise, you may be able to repair this issue yourself by carefully inspecting the wiring, connectors, and components related to the door lock system, and replacing any damaged parts as needed.

5. Is it safe to continue driving my Dodge with the B198A OBDII code related to the All Door Secondary Unlock Control Circuit Low?

- While the vehicle may still be drivable with this code, it is not ideal to ignore it, as it may lead to further issues with the door locking system. It is recommended to address the problem as soon as possible.

6. Can a faulty key fob or remote transmitter cause the B198A code in a Dodge?

- Yes, a malfunctioning key fob or remote transmitter can potentially cause issues with the All Door Secondary Unlock Control Circuit, triggering the B198A code. It is advisable to check the key fob functionality as part of the diagnosis.

7. Are there any specific Dodge models known to be more susceptible to the B198A OBDII code related to the All Door Secondary Unlock Control Circuit Low?

- While this code can occur in various Dodge models, some vehicles with complex door lock systems or advanced keyless entry features may be more prone to experiencing issues that trigger the B198A code.

8. What is the typical cost to repair the All Door Secondary Unlock Control Circuit Low issue in a Dodge at a professional auto repair shop?

- Repair costs can vary depending on the specific cause of the problem and the labor rates of the repair shop. It is recommended to obtain quotes from different shops to compare prices before proceeding with the repair.

9. Can resetting the BCM (Body Control Module) potentially resolve the B198A code in a Dodge?

- In some cases, performing a BCM reset or reprogramming procedure may help clear the B198A code related to the All Door Secondary Unlock Control Circuit Low. However, it is important to ensure that the root cause of the issue is properly addressed.

10. What steps can be taken to prevent the recurrence of the B198A OBDII code in a Dodge after it has been repaired?

- To prevent the B198A code from reoccurring, it is crucial to address the underlying cause of the issue thoroughly, conduct regular maintenance checks on the door lock system, and ensure proper functioning of key fobs and remote transmitters.

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