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Engine-Codes – Dodge – B1663 Dodge

B1663 Dodge Code - Rear Fog Lamp Control Circuit Low

Quick Answer

The B1663 diagnostic trouble code for Dodge vehicles indicates a problem with the rear fog lamp control circuit being detected as low. Common causes include Faulty wiring or connections in the rear fog lamp circuit, Blown fuse related to the rear fog lamp, Malfunctioning rear fog lamp switch. 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
B1663 Dodge indicates Rear Fog Lamp Control Circuit Low.
Common causes
Common causes include Faulty wiring or connections in the rear fog lamp circuit, Blown fuse related to the rear fog lamp, Malfunctioning rear fog lamp switch.
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 Sep 14, 2024
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Code B1663 Dodge Description

The B1663 diagnostic trouble code for Dodge vehicles indicates a problem with the rear fog lamp control circuit being detected as low. The rear fog lamp is an important safety feature that improves visibility for other drivers in adverse weather conditions such as fog, heavy rain, or snow. When this code is triggered, it means that there is an issue with the electrical circuit that controls the rear fog lamp, which can lead to the lamp not functioning properly or at all.

OBDII Code B1663 Dodge - Rear Fog Lamp Control Circuit Low
B1663 Dodge Code - Rear Fog Lamp Control Circuit Low

Common Causes of B1663 Dodge

  1. Faulty wiring or connections in the rear fog lamp circuit.
  2. Blown fuse related to the rear fog lamp.
  3. Malfunctioning rear fog lamp switch.
  4. Defective rear fog lamp bulb.
  5. Water or moisture damage to the rear fog lamp components.

Symptoms of B1663 Dodge

  1. Rear fog lamp not turning on when activated.
  2. Dashboard warning light indicating a rear fog lamp malfunction.
  3. Dim or flickering rear fog lamp.
  4. Rear fog lamp staying on constantly.
  5. Fuse related issues in the rear fog lamp circuit.

How to Fix B1663 Dodge

  1. Begin by inspecting the rear fog lamp bulb to ensure it is not burnt out or damaged. Replace the bulb if necessary.
  2. Check the fuse related to the rear fog lamp and replace it if it is blown.
  3. Inspect the wiring and connections in the rear fog lamp circuit for any damage or corrosion. Repair or replace any faulty wiring or connections.
  4. Test the rear fog lamp switch to determine if it is functioning correctly. Replace the switch if needed.
  5. After completing the repairs, test the rear fog lamp to ensure it is working properly before reassembling any components.

Cost to Fix B1663 Dodge

The typical repair costs for addressing the B1663 code related to the rear fog lamp control circuit low can range from $50 to $200, depending on the specific cause of the issue and the cost of parts and labor. It is important to note that the diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check with local repair shops for a more accurate estimate based on your specific circumstances.

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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 B1663 Dodge Code

1. What are the common symptoms of OBDII code B1663 Dodge (Rear Fog Lamp Control Circuit Low)?

The common symptoms include the rear fog lamp not working, dim or flickering rear fog lamp, and the dashboard displaying a warning light related to the rear fog lamp system.

2. What are the potential causes of OBDII code B1663 Dodge?

The code B1663 can be triggered by issues such as a faulty rear fog lamp bulb, damaged wiring or connectors in the rear fog lamp circuit, or a malfunctioning rear fog lamp control module.

3. How can I diagnose the cause of OBDII code B1663 Dodge myself?

You can start by visually inspecting the rear fog lamp bulb and its connections. Check for any visible damage or corrosion. Using a multimeter, test the continuity of the wiring and connectors to identify any open circuits or shorts.

4. Can a blown fuse cause OBDII code B1663 Dodge to appear?

Yes, a blown fuse in the rear fog lamp circuit can cause the code B1663 to be triggered. Check the fuse box for any blown fuses related to the rear fog lamp system and replace as needed.

5. How should I repair OBDII code B1663 Dodge (Rear Fog Lamp Control Circuit Low)?

Repairing this code typically involves replacing a faulty rear fog lamp bulb, repairing damaged wiring or connectors, or replacing the rear fog lamp control module if necessary.

6. Is it safe to continue driving with OBDII code B1663 Dodge illuminated?

While the code B1663 is related to the rear fog lamp system and may not affect the overall drivability of the vehicle, it is important to address the issue promptly to ensure proper visibility and safety, especially in low visibility conditions.

7. Can a DIY enthusiast easily fix OBDII code B1663 Dodge at home?

Depending on the underlying cause, DIY enthusiasts with some automotive repair experience may be able to fix the code B1663 by following repair guides specific to the Dodge model in question.

8. Will resetting the OBDII system clear the B1663 code?

Resetting the OBDII system may temporarily clear the B1663 code, but if the underlying issue causing the fault is not addressed, the code is likely to reappear after driving cycles.

9. Are there any common triggers for OBDII code B1663 Dodge that I should be aware of?

Common triggers for the B1663 code include water damage to the rear fog lamp components, corrosion in the wiring, or a loose connection in the circuit.

10. How can I prevent OBDII code B1663 Dodge from recurring in the future?

Regularly inspecting the rear fog lamp system for any signs of damage, ensuring proper connections, and promptly addressing any issues that arise can help prevent the code B1663 from recurring in the future.

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