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B1663 Jeep Code - Rear Fog Lamp Control Circuit Low

Quick Answer

The B1663 code for Jeep vehicles indicates a problem with the rear fog lamp control circuit being detected as low. Common causes include Damaged wiring or connectors in the rear fog lamp circuit, Faulty rear fog lamp switch, Malfunctioning rear fog lamp control module. 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 Jeep indicates Rear Fog Lamp Control Circuit Low.
Common causes
Common causes include Damaged wiring or connectors in the rear fog lamp circuit, Faulty rear fog lamp switch, Malfunctioning rear fog lamp control module.
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 09, 2024
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Code B1663 Jeep Description

The B1663 code for Jeep vehicles indicates a problem with the rear fog lamp control circuit being detected as low. The rear fog lamps are designed to improve visibility for other drivers in conditions of poor visibility, such as fog, heavy rain, or snow. When this code is triggered, it means that the control circuit for the rear fog lamps is experiencing a lower than normal voltage.

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

Common Causes of B1663 Jeep

  1. Damaged wiring or connectors in the rear fog lamp circuit.
  2. Faulty rear fog lamp switch.
  3. Malfunctioning rear fog lamp control module.
  4. Blown fuse related to the rear fog lamps.

Symptoms of B1663 Jeep

  1. Rear fog lamps not turning on or functioning intermittently.
  2. Dashboard indicator light for rear fog lamps illuminated.
  3. Dim or flickering rear fog lamps.
  4. Electrical burning smell coming from the rear of the vehicle.

How to Fix B1663 Jeep

  1. Begin by checking the rear fog lamp bulbs for any signs of damage or burnout. Replace any faulty bulbs.
  2. Inspect the wiring and connectors in the rear fog lamp circuit for any visible damage or corrosion. Repair or replace as needed.
  3. Test the rear fog lamp switch for functionality and replace if it is faulty.
  4. Check the rear fog lamp control module for any signs of malfunction and replace if necessary.
  5. Verify the fuse related to the rear fog lamps and replace if it is blown.

Cost to Fix B1663 Jeep

The typical repair costs for addressing the B1663 code for Jeep vehicles can vary depending on the specific cause of the issue. On average, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $80 to $150 per hour. The total repair cost can range from $150 to $500 or more, depending on the extent of the issue and the needed repairs. It's recommended to consult with a professional mechanic to get an accurate estimate based on your vehicle's specific needs.

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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 Jeep Code

1. What are the common symptoms of OBDII code B1663 in a Jeep related to the Rear Fog Lamp Control Circuit Low?

- Common symptoms include the rear fog lamps not working or remaining dim while driving.

2. What are the possible causes of the OBDII code B1663 in a Jeep indicating a Rear Fog Lamp Control Circuit Low?

- Causes can include a faulty fog lamp control module, damaged wiring, a blown fuse, or a malfunctioning fog lamp switch.

3. How can I diagnose the issue causing the OBDII code B1663 in my Jeep related to the Rear Fog Lamp Control Circuit Low?

- You can start by checking the fuse for the fog lamps, inspecting the wiring for any damage, testing the fog lamp switch, and examining the fog lamp control module for faults.

4. Can I still drive my Jeep with the OBDII code B1663 indicating a Rear Fog Lamp Control Circuit Low?

- While it may be safe to drive, it is recommended to address the issue promptly to ensure proper functionality of the rear fog lamps, especially in low visibility conditions.

5. Is it possible to reset the OBDII code B1663 in a Jeep myself after repairing the Rear Fog Lamp Control Circuit Low issue?

- Yes, you can reset the code using an OBDII scanner or by disconnecting the car battery for a few minutes. However, make sure the underlying issue has been fixed before resetting the code.

6. Are there any DIY repair tips for resolving the OBDII code B1663 in a Jeep related to the Rear Fog Lamp Control Circuit Low?

- DIY repair tips may include checking and replacing any blown fuses, repairing damaged wiring, ensuring proper connections, and testing components systematically.

7. How much does it typically cost to repair the OBDII code B1663 in a Jeep indicating a Rear Fog Lamp Control Circuit Low?

- The cost of repairs can vary depending on the exact cause of the issue. It may range from a simple fuse replacement to more complex repairs involving modules or switches.

8. Can extreme weather conditions affect the occurrence of the OBDII code B1663 related to the Rear Fog Lamp Control Circuit Low in a Jeep?

- Yes, extreme weather conditions like heavy rain or snow can potentially exacerbate issues with the rear fog lamps, leading to the triggering of the B1663 fault code.

9. Is the OBDII code B1663 indicating a Rear Fog Lamp Control Circuit Low a common issue in Jeep vehicles?

- While not extremely common, issues with the rear fog lamp control circuit can occur in Jeep vehicles, especially in older models or those exposed to harsh driving conditions.

10. Should I seek professional help to diagnose and repair the OBDII code B1663 in my Jeep related to the Rear Fog Lamp Control Circuit Low?

- If you are not familiar with automotive electrical systems, it is recommended to seek professional help to accurately diagnose and repair the issue to ensure proper functioning of the rear fog lamps.

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