Engine-CodesNissan – C1806 Nissan

C1806 Nissan Code - Air Suspension Vehicle Height Sensor Fix

Quick Answer

The C1806 Nissan code specifically relates to the air suspension vehicle height sensor. Common causes include Faulty height sensor, Wiring or electrical issues, Corrosion or damage to sensor components. 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
C1806 Nissan indicates Air Suspension Vehicle Height Sensor Fix.
Common causes
Common causes include Faulty height sensor, Wiring or electrical issues, Corrosion or damage to sensor components.
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.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code C1806 Nissan Description

The C1806 Nissan code specifically relates to the air suspension vehicle height sensor. This sensor is responsible for measuring the height of the vehicle in relation to the ground and ensuring that the suspension system maintains the correct ride height. When this code is triggered, it indicates that there is a fault or malfunction with the height sensor, which can lead to issues with the vehicle's suspension system.

OBDII Code C1806 Nissan - Air Suspension Vehicle Height Sensor Fix
C1806 Nissan Code - Air Suspension Vehicle Height Sensor Fix

Common Causes of C1806 Nissan

  1. Faulty height sensor
  2. Wiring or electrical issues
  3. Corrosion or damage to sensor components
  4. Suspension system damage or malfunction
  5. Software or calibration errors

Symptoms of C1806 Nissan

  1. Uneven ride height
  2. Rough or uncomfortable ride
  3. Vehicle sitting lower on one side
  4. Uneven tire wear
  5. Reduced traction and braking performance

How to Fix C1806 Nissan

  1. Diagnose the issue by using a diagnostic scanner to read the fault code and test the height sensor.
  2. Inspect the wiring and connections related to the height sensor for any damage or corrosion.
  3. Replace the faulty height sensor if it is determined to be the cause of the issue.
  4. Test the suspension system and recalibrate the height sensor to ensure proper functionality.
  5. Clear the fault code and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix C1806 Nissan

The typical repair costs for addressing the C1806 Nissan code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, replacing a faulty height sensor and recalibrating the suspension system can range from $200 to $500, including parts and labor. However, it's important to note that 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's recommended to check with local shops for a more accurate 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 C1806 Nissan Code

1. What does the OBDII code C1806 mean on a Nissan?

Code C1806 indicates a malfunction in the air suspension vehicle height sensor, which monitors and adjusts the ride height.

2. What are common symptoms of code C1806 in a Nissan?

Symptoms include uneven vehicle height, a sagging suspension, warning lights on the dashboard, and impaired ride comfort.

3. What causes the C1806 code to appear?

Common causes include a faulty height sensor, damaged wiring or connectors, corrosion, or a malfunction in the air suspension control module.

4. Can I still drive my Nissan with the C1806 code?

Yes, but it’s not recommended as it may lead to further damage to the suspension system and affect ride quality and safety.

5. How do I diagnose the C1806 code on a Nissan?

Inspect the vehicle height sensor, check for damaged or corroded wiring, and use an OBDII scanner to confirm the code and related data.

6. How do I fix the C1806 code on a Nissan?

Repairs may include replacing the faulty height sensor, repairing damaged wiring, cleaning corroded connectors, or recalibrating the air suspension system.

7. What tools are needed to fix the C1806 code?

You’ll need an OBDII scanner, a multimeter for testing electrical connections, and basic hand tools for removing and replacing components.

8. How much does it cost to repair a C1806 code on a Nissan?

Repair costs vary but typically range from $150 to $500, depending on whether the sensor, wiring, or other components need replacement.

9. Can a C1806 code clear itself after repairs?

The code may clear automatically after successful repairs, but in some cases, you may need to use an OBDII scanner to manually clear it.

10. How can I prevent the C1806 code from recurring?

Regularly inspect the air suspension system, keep connectors free of corrosion, and address any suspension issues promptly to prevent further damage.

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