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C1805 Infiniti Code - Air Suspension Vehicle Height Adjustment Down

Quick Answer

The C1805 code for Infiniti vehicles indicates a problem with the air suspension system's vehicle height adjustment. Common causes include Faulty air suspension sensors, Leaking air springs, Malfunctioning air compressor. 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
C1805 Infiniti indicates Air Suspension Vehicle Height Adjustment Down.
Common causes
Common causes include Faulty air suspension sensors, Leaking air springs, Malfunctioning air compressor.
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 09, 2024
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Code C1805 Infiniti Description

The C1805 code for Infiniti vehicles indicates a problem with the air suspension system's vehicle height adjustment. The air suspension system is responsible for adjusting the vehicle's ride height based on driving conditions and load, providing a smooth and comfortable ride. When this system malfunctions, it can lead to issues with the vehicle's handling, comfort, and overall performance.

OBDII Code C1805 Infiniti - Air Suspension Vehicle Height Adjustment Down
C1805 Infiniti Code - Air Suspension Vehicle Height Adjustment Down

Common Causes of C1805 Infiniti

  1. Faulty air suspension sensors
  2. Leaking air springs
  3. Malfunctioning air compressor
  4. Issues with the control module
  5. Electrical problems in the system

Symptoms of C1805 Infiniti

  1. Noticeable decrease in ride height
  2. Uneven tire wear
  3. Harsh or bumpy ride
  4. Difficulty handling the vehicle
  5. Dashboard warning light indicating air suspension system issue

How to Fix C1805 Infiniti

  1. Diagnose the specific cause of the issue using a scan tool to read the error code and perform further testing on the air suspension system components.
  2. Replace any faulty sensors, air springs, or the air compressor as needed.
  3. Reset the system and calibrate the ride height using the manufacturer's recommended procedures.
  4. Test the system to ensure the vehicle height adjustment is functioning correctly.
  5. Clear the error code and verify that it does not return after the repair.

Cost to Fix C1805 Infiniti

The typical repair costs for addressing the C1805 code in an Infiniti vehicle can vary depending on the specific cause of the issue and the components that need to be replaced. On average, the repair costs for air suspension system issues can range from $500 to $1500, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Additionally, factors such as location, vehicle make and model, and engine type can also impact the overall repair costs.

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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 C1805 Infiniti Code

1. What are the common symptoms of OBDII code C1805 in an Infiniti related to air suspension vehicle height adjustment?

- The common symptoms include the vehicle's suspension height adjusting down on its own, causing an uneven ride height.

2. What are some possible causes of OBDII code C1805 in an Infiniti triggering the air suspension vehicle height adjustment down?

- Possible causes may include faulty height sensors, air leaks in the suspension system, or a malfunctioning control module.

3. How can I diagnose the issue causing OBDII code C1805 in my Infiniti air suspension system to adjust the vehicle height down?

- You can start by checking the height sensors for proper functionality, inspecting the air suspension components for leaks, and scanning the control module for any error codes.

4. Are there any simple repair tips to address OBDII code C1805 in an Infiniti causing the air suspension vehicle height adjustment down?

- Try checking and correcting the air suspension system's air pressure levels, ensuring the suspension components are properly connected and functioning, and resetting the control module.

5. Can weather or external factors trigger OBDII code C1805 in an Infiniti and cause the air suspension vehicle height adjustment to go down?

- Yes, extreme weather conditions or external factors like rough terrain can potentially affect the air suspension system, leading to the vehicle height adjusting down and triggering the code.

6. Is it safe to drive my Infiniti with OBDII code C1805 causing the air suspension vehicle height adjustment down?

- It is not recommended to drive the vehicle extensively with this issue as it can affect the handling, stability, and overall safety of the vehicle.

7. What are the potential long-term consequences of ignoring OBDII code C1805 in an Infiniti with the air suspension vehicle height adjustment down?

- Ignoring the issue can lead to further damage to the air suspension components, potentially causing more expensive repairs in the future.

8. Can resetting the system help resolve OBDII code C1805 in an Infiniti causing the air suspension vehicle height adjustment to go down?

- Resetting the system may temporarily clear the code, but it is important to diagnose and address the underlying cause to prevent the issue from reoccurring.

9. Are there any recalls or service bulletins related to OBDII code C1805 in Infiniti vehicles with air suspension height adjustment issues?

- Check with your local Infiniti dealership or service center to inquire about any recalls or service bulletins specific to this OBDII code and related air suspension problems.

10. How much can I expect to pay for repairs related to OBDII code C1805 in an Infiniti causing the air suspension vehicle height adjustment down?

- Repair costs can vary based on the exact cause of the issue, but it is advisable to get a diagnostic inspection done to determine the extent of the problem and the associated repair costs.

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