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B1663 Chrysler Code - Rear Fog Lamp Control Circuit Low

Quick Answer

The B1663 Chrysler code refers to a fault in the rear fog lamp control circuit, specifically indicating that the circuit is experiencing low voltage. Common causes include Faulty wiring harness leading to low voltage supply, Loose or corroded connections in the rear fog lamp circuit, Blown fuse related to the rear fog lamp system. 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 Chrysler indicates Rear Fog Lamp Control Circuit Low.
Common causes
Common causes include Faulty wiring harness leading to low voltage supply, Loose or corroded connections in the rear fog lamp circuit, Blown fuse related to the rear fog lamp system.
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 11, 2024
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Code B1663 Chrysler Description

The B1663 Chrysler code refers to a fault in the rear fog lamp control circuit, specifically indicating that the circuit is experiencing low voltage. Rear fog lamps are an important safety feature on vehicles, especially in adverse weather conditions where visibility is reduced. When this code is triggered, it means that there is a problem with the electrical system that controls the rear fog lamps, potentially resulting in the lamps not functioning properly or at all.

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

Common Causes of B1663 Chrysler

  1. Faulty wiring harness leading to low voltage supply
  2. Loose or corroded connections in the rear fog lamp circuit
  3. Blown fuse related to the rear fog lamp system
  4. Malfunctioning rear fog lamp switch or control module

Symptoms of B1663 Chrysler

  1. Rear fog lamps not turning on or functioning intermittently
  2. Dashboard warning light indicating a fault with the rear fog lamp system
  3. Dim or flickering rear fog lamps
  4. Burning smell or visible damage to the rear fog lamp housing

How to Fix B1663 Chrysler

  1. Begin by inspecting the rear fog lamp circuit for any visible damage, loose connections, or signs of corrosion.
  2. Check the fuse related to the rear fog lamp system and replace if necessary.
  3. Test the voltage supply to the rear fog lamps to determine if it is within the correct range.
  4. If the voltage is low, trace the wiring harness back to the source of the issue and repair or replace as needed.
  5. Test the rear fog lamp switch or control module for proper functionality and replace if deemed faulty.

Cost to Fix B1663 Chrysler

The typical repair costs for addressing a B1663 Chrysler code can vary depending on the specific cause of the issue and the extent of repairs needed. On average, repairing the rear fog lamp control circuit could range from $100 to $300, including parts and labor. However, it's important to note that diagnosis time and labor rates at auto repair shops can fluctuate based on various factors, so it's advisable to consult with a professional for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

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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 Chrysler Code

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

- The common symptoms include the rear fog lamp not functioning properly or not turning on at all.

2. What are the possible causes of OBDII code B1663 Chrysler?

- Possible causes include a faulty fog lamp switch, wiring issues, a blown fuse, or a malfunctioning rear fog lamp assembly.

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

- You can start by checking the fuse related to the rear fog lamp, inspecting the wiring for any damage, and testing the fog lamp switch for functionality.

4. Can I still drive my vehicle with OBDII code B1663 Chrysler present?

- It is generally safe to drive with this code, but it is recommended to address the issue promptly to ensure proper functionality of the rear fog lamp.

5. How do I repair OBDII code B1663 Chrysler?

- Repairing this code may involve replacing a faulty fog lamp switch, repairing damaged wiring, replacing a blown fuse, or replacing the rear fog lamp assembly.

6. Are there any common mistakes to avoid when addressing OBDII code B1663 Chrysler?

- One common mistake to avoid is overlooking basic checks like inspecting the fuse or wiring before replacing components like the fog lamp switch.

7. Can weather conditions affect the appearance of OBDII code B1663 Chrysler?

- Extreme weather conditions or water exposure can sometimes lead to wiring issues that trigger this code, so it's important to keep the rear fog lamp components protected.

8. Is it possible for OBDII code B1663 Chrysler to be a false alarm?

- While rare, it is possible for this code to be triggered erroneously due to a temporary glitch. Clearing the code and monitoring the rear fog lamp operation can help determine if it was a false alarm.

9. How long does it typically take to repair OBDII code B1663 Chrysler?

- The repair time can vary depending on the exact cause of the issue. Simple fixes like replacing a fuse can be done quickly, while diagnosing and repairing wiring issues may take longer.

10. Can I reset OBDII code B1663 Chrysler without fixing the underlying issue?

- You can clear the code using an OBDII scanner, but it is recommended to address the root cause of the problem to ensure proper functionality of the rear fog lamp.

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