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Engine-Codes – Generic – C1806

C1806 Code - Air Suspension Vehicle Height Sensor Fix

Quick Answer

The C1806 code indicates a problem with the air suspension vehicle height sensor. Common causes include Faulty air suspension height sensor, Wiring issues or electrical connections, Damaged suspension 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 indicates Air Suspension Vehicle Height Sensor Fix.
Common causes
Common causes include Faulty air suspension height sensor, Wiring issues or electrical connections, Damaged suspension 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.
What is this?
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code C1806 Description

The C1806 code indicates a problem with the air suspension vehicle height sensor. This sensor is responsible for monitoring the ride height of the vehicle and ensuring that the suspension system maintains the correct level. When this sensor malfunctions, it can lead to issues with the vehicle's handling, stability, and overall ride comfort. If left unresolved, it can cause uneven tire wear, poor handling, and potential damage to other components of the suspension system. The underlying cause of this issue could be a faulty sensor, wiring issues, or problems with the suspension system itself.

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

Common Causes of C1806

  1. Faulty air suspension height sensor
  2. Wiring issues or electrical connections
  3. Damaged suspension components
  4. Corrosion or debris affecting sensor function
  5. Computer system malfunction

Symptoms of C1806

  1. Uneven ride height
  2. Vehicle leaning to one side
  3. Harsh ride quality
  4. Suspension warning light illuminated on the dashboard
  5. Difficulty maintaining control of the vehicle while driving

How to Fix C1806

  1. Diagnose the issue by using a scan tool to retrieve the specific code and check the sensor's readings.
  2. Inspect the wiring and connections for any signs of damage or corrosion.
  3. Test the sensor's functionality by manually adjusting the ride height and checking for proper response.
  4. Replace the faulty sensor if necessary and recalibrate the suspension system.
  5. Clear the code from the vehicle's computer system and perform a test drive to ensure the issue has been resolved.

Cost to Fix C1806

The cost for repairing the air suspension vehicle height sensor can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $200 and $500 for parts and labor. Keep in mind that additional costs may apply if other suspension components need to be replaced or if there are underlying electrical issues that need to be addressed. Be sure to get a detailed estimate from a reputable auto repair shop before proceeding with the repair.

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Code C1806 Information for Specific Makes

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 Code

1. What are common symptoms of OBDII code C1806 related to the air suspension vehicle height sensor?

- Common symptoms include inaccurate ride height readings, uneven suspension, or a warning light on the dashboard indicating a suspension issue.

2. What can cause OBDII code C1806 to trigger in a vehicle's air suspension system?

- The code C1806 may be triggered by a faulty height sensor, damaged wiring, a malfunctioning control module, or issues with the air suspension components.

3. How can I diagnose the cause of OBDII code C1806 in my vehicle's air suspension system?

- To diagnose the issue, you can use a diagnostic scanner to retrieve the trouble codes, visually inspect the height sensor and wiring, and perform any necessary tests recommended by the manufacturer.

4. Are there any DIY repair tips for fixing OBDII code C1806 related to the air suspension vehicle height sensor?

- DIY repair tips include checking and cleaning the height sensor connectors, ensuring proper wiring connections, and resetting the system to clear the code.

5. Is it safe to drive with OBDII code C1806 triggered in the air suspension system?

- It is not recommended to drive with the code C1806 triggered as it can affect the vehicle's handling, stability, and overall safety. It is best to address the issue promptly.

6. How much does it typically cost to repair OBDII code C1806 in the air suspension system?

- The cost of repair for OBDII code C1806 can vary depending on the underlying cause, but it may involve replacing the height sensor, repairing wiring, or reprogramming the control module.

7. Can OBDII code C1806 be intermittent or recurring in the air suspension system?

- Yes, OBDII code C1806 can be intermittent or recurring if the underlying issue is not properly addressed or if there are ongoing problems with the height sensor or related components.

8. Are there any preventive maintenance steps to avoid OBDII code C1806 in the air suspension system?

- Regularly inspecting the air suspension components, keeping the height sensor clean and free of debris, and addressing any suspension issues promptly can help prevent OBDII code C1806.

9. Can resetting the vehicle's computer clear OBDII code C1806 related to the air suspension system?

- Resetting the vehicle's computer may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to return. It is recommended to diagnose and repair the problem.

10. How long does it take to repair OBDII code C1806 in the air suspension system?

- The repair time for OBDII code C1806 can vary depending on the complexity of the issue and the availability of parts, but it may take anywhere from a few hours to a day at a professional repair shop.

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