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B1206 Lincoln Code - EIC Switch Assembly Circuit Open

Quick Answer

The B1206 diagnostic trouble code for Lincoln vehicles indicates that there is an issue with the EIC (Electronic Instrument Cluster) switch assembly circuit being open. Common causes include Wiring harness damage or corrosion, Faulty switch assembly, Loose or disconnected electrical connectors. 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
B1206 Lincoln indicates EIC Switch Assembly Circuit Open.
Common causes
Common causes include Wiring harness damage or corrosion, Faulty switch assembly, Loose or disconnected electrical connectors.
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 10, 2024
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Code B1206 Lincoln Description

The B1206 diagnostic trouble code for Lincoln vehicles indicates that there is an issue with the EIC (Electronic Instrument Cluster) switch assembly circuit being open. In simpler terms, this means that there is an interruption in the electrical circuit that controls the switch assembly within the instrument cluster. The instrument cluster is responsible for displaying vital information to the driver, such as speed, fuel level, and engine temperature. When this circuit is open, it can lead to the malfunctioning of various components within the instrument cluster, affecting the vehicle's overall performance and safety.

OBDII Code B1206 Lincoln - EIC Switch Assembly Circuit Open
B1206 Lincoln Code - EIC Switch Assembly Circuit Open

Common Causes of B1206 Lincoln

  1. Wiring harness damage or corrosion.
  2. Faulty switch assembly.
  3. Loose or disconnected electrical connectors.
  4. Electrical system malfunctions.
  5. Water or moisture damage to the instrument cluster.

Symptoms of B1206 Lincoln

  1. Erratic or non-functional gauges on the instrument cluster.
  2. Illumination of warning lights on the dashboard.
  3. Inability to control settings through the switch assembly.
  4. Loss of communication with the instrument cluster.

How to Fix B1206 Lincoln

  1. Begin by conducting a thorough inspection of the wiring harness and connectors to identify any visible damage or corrosion. Repair or replace any damaged components.
  2. Check the switch assembly for proper functionality. If the switch assembly is faulty, it will need to be replaced.
  3. Test the electrical circuits to ensure proper continuity and voltage levels. Repair any issues found during testing.
  4. Clear the diagnostic trouble code from the vehicle's computer system using a diagnostic tool.
  5. Test drive the vehicle to verify that the issue has been resolved and that the instrument cluster is functioning correctly.

Cost to Fix B1206 Lincoln

The typical repair costs for addressing a B1206 code on a Lincoln vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair can range from $100 to $300, with labor costs adding an additional $100 to $200. However, it's important to note that labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and the complexity of the repair. Therefore, it's advisable to obtain a detailed estimate from a qualified mechanic or repair shop 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 B1206 Lincoln Code

1. What are common symptoms of OBDII code B1206 in a Lincoln related to the EIC switch assembly circuit open?

Symptoms may include the inability to control the electronic instrument cluster (EIC) functions, such as adjusting settings or displaying information.

2. What are the possible causes of OBDII code B1206 indicating an EIC switch assembly circuit open in a Lincoln?

Potential causes include a faulty EIC switch assembly, damaged wiring or connectors in the circuit, or a malfunctioning control module.

3. How can I diagnose the EIC switch assembly circuit open issue triggering OBDII code B1206 in my Lincoln?

You can start by visually inspecting the wiring and connectors for any visible damage. Using a multimeter to test the continuity of the circuit can help pinpoint the exact location of the open circuit.

4. Can a DIY enthusiast repair the EIC switch assembly circuit open problem associated with OBDII code B1206 in a Lincoln?

While basic troubleshooting like checking connections can be done by DIYers, fixing the root cause may require specialized tools and expertise. It's recommended to consult a professional mechanic for complex repairs.

5. Is it safe to continue driving my Lincoln with OBDII code B1206 due to an EIC switch assembly circuit open?

It's not recommended to drive the vehicle with unresolved electrical issues, as they can potentially lead to further damage or safety hazards. Get the problem diagnosed and repaired as soon as possible.

6. Are there any temporary solutions or workarounds for dealing with OBDII code B1206 in a Lincoln caused by an EIC switch assembly circuit open?

Temporary solutions like resetting the code may not address the underlying problem and could lead to the issue recurring. It's best to address the root cause of the code to ensure a proper fix.

7. How much can I expect to pay to repair OBDII code B1206 related to an EIC switch assembly circuit open in a Lincoln?

The cost of repairs can vary depending on the specific cause of the issue, labor rates, and parts needed. It's advisable to get a diagnosis from a trusted mechanic to receive an accurate estimate.

8. Can weather conditions or external factors trigger OBDII code B1206 due to an EIC switch assembly circuit open in a Lincoln?

While extreme weather or external factors may not directly cause this specific code, they can potentially exacerbate existing electrical issues. Ensure your vehicle is well-maintained to minimize such risks.

9. Will resetting the OBDII code B1206 related to an EIC switch assembly circuit open in my Lincoln make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear. It's crucial to diagnose and fix the root cause of the problem.

10. Can a faulty EIC switch assembly cause other problems in a Lincoln besides triggering OBDII code B1206 related to an open circuit?

Yes, a faulty EIC switch assembly can impact other functions of the electronic instrument cluster, potentially leading to issues with display accuracy, controls, and overall instrumentation performance.

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