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Engine-Codes – Lincoln – B2659 Lincoln

B2659 Lincoln Code - Courtesy Switch Fault

Quick Answer

The B2659 diagnostic trouble code for Lincoln vehicles indicates a fault with the courtesy switch. Common causes include Faulty courtesy switch, Wiring issues in the interior lighting system, Problems with the body 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
B2659 Lincoln indicates Courtesy Switch Fault.
Common causes
Common causes include Faulty courtesy switch, Wiring issues in the interior lighting system, Problems with the body 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 12, 2024
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Code B2659 Lincoln Description

The B2659 diagnostic trouble code for Lincoln vehicles indicates a fault with the courtesy switch. The courtesy switch is a component that controls the interior lights of the vehicle, typically turning them on when a door is opened and off when the door is closed. When this switch malfunctions, it can lead to issues with the interior lighting system, affecting visibility inside the vehicle and potentially draining the battery if the lights remain on when they shouldn't be.

OBDII Code B2659 Lincoln - Courtesy Switch Fault
B2659 Lincoln Code - Courtesy Switch Fault

Common Causes of B2659 Lincoln

  1. Faulty courtesy switch.
  2. Wiring issues in the interior lighting system.
  3. Problems with the body control module.
  4. Corrosion or damage to electrical connections.
  5. Impact damage to the courtesy switch or wiring.

Symptoms of B2659 Lincoln

  1. Interior lights not turning on when a door is opened.
  2. Interior lights flickering or not turning off when the door is closed.
  3. Inconsistent operation of the interior lights.
  4. Battery draining more quickly than usual.

How to Fix B2659 Lincoln

  1. Begin by diagnosing the specific cause of the courtesy switch fault using a diagnostic scanner to retrieve the trouble codes and testing the switch and wiring for continuity.
  2. If the issue is with the switch itself, replace the faulty courtesy switch with a new one that is compatible with the vehicle's make and model.
  3. Check and repair any damaged wiring or connections in the interior lighting system to ensure proper operation.
  4. If the problem lies with the body control module, have it tested and potentially replaced by a qualified technician.
  5. Test the repaired system to ensure that the courtesy switch is functioning correctly and that the interior lights operate as intended.

Cost to Fix B2659 Lincoln

The cost of repairing a courtesy switch fault in a Lincoln vehicle can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the parts for this repair can range from $50 to $150, while the labor costs can range from $100 to $200. Keep in mind that these are rough estimates, and actual costs may vary based on the location, vehicle make and model, and the extent of the repair needed. It's recommended to consult with a trusted mechanic or repair shop for a more accurate cost estimate.

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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 B2659 Lincoln Code

1. What are the common symptoms of OBDII code B2659 Lincoln (Courtesy Switch Fault)?

The common symptoms of OBDII code B2659 Lincoln include interior lights staying on or not turning off, power door locks not functioning properly, and potential draining of the vehicle's battery.

2. What causes the OBDII code B2659 Lincoln (Courtesy Switch Fault) to trigger?

The OBDII code B2659 Lincoln is typically triggered due to a fault in the courtesy switch, which is responsible for controlling the interior lights and power door locks.

3. How can I diagnose the OBDII code B2659 Lincoln (Courtesy Switch Fault)?

Diagnosing the OBDII code B2659 Lincoln involves inspecting the courtesy switch for any physical damage, checking the wiring connections, and using a diagnostic scan tool to retrieve the specific fault code.

4. Can I repair the OBDII code B2659 Lincoln (Courtesy Switch Fault) on my own?

Depending on your level of expertise, repairing the OBDII code B2659 Lincoln may involve replacing the faulty courtesy switch, repairing damaged wiring, or resetting the error code with a diagnostic scan tool. It's recommended to consult a professional if you're unsure.

5. What are some tips for preventing the OBDII code B2659 Lincoln (Courtesy Switch Fault) from recurring?

To prevent the OBDII code B2659 Lincoln from recurring, ensure proper installation of a new courtesy switch if replacement is necessary, regularly inspect the interior lights and power door locks for any issues, and address any electrical problems promptly.

6. Are there any safety concerns associated with the OBDII code B2659 Lincoln (Courtesy Switch Fault)?

While the OBDII code B2659 Lincoln itself may not pose immediate safety risks, malfunctioning interior lights and power door locks can impact visibility while driving and compromise vehicle security. It's important to address the issue promptly.

7. How long does it typically take to repair the OBDII code B2659 Lincoln (Courtesy Switch Fault)?

The repair time for the OBDII code B2659 Lincoln can vary depending on the specific cause of the fault. Simple fixes like replacing a courtesy switch may take an hour or less, while more complex wiring issues could require more time.

8. Can the OBDII code B2659 Lincoln (Courtesy Switch Fault) affect other vehicle systems?

While the OBDII code B2659 Lincoln is primarily related to the courtesy switch and interior lights, electrical faults in this area can sometimes impact other vehicle systems that rely on the same circuitry. It's important to address the issue promptly to prevent further complications.

9. Is it safe to continue driving with the OBDII code B2659 Lincoln (Courtesy Switch Fault) present?

It's generally safe to drive with the OBDII code B2659 Lincoln present, but it's recommended to address the underlying issue as soon as possible to avoid potential inconvenience or safety concerns related to malfunctioning interior lights and power door locks.

10. Can weather conditions or vehicle age contribute to the OBDII code B2659 Lincoln (Courtesy Switch Fault)?

Weather conditions and vehicle age can sometimes contribute to the development of electrical faults, including the OBDII code B2659 Lincoln. Exposure to moisture, extreme temperatures, and general wear and tear over time can impact the reliability of components like the courtesy switch.

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