AutoCodesGeneric – C1808

C1808 Code - Air Suspension Compressor Function

Quick Answer

The Air Levelizer Control Module monitors the Air Suspension Compressor. Common causes include Faulty Air Suspension Compressor, Air Suspension Compressor harness is open or shorted, Air Suspension Compressor circuit poor electrical connection. 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
C1808 indicates Air Suspension Compressor Function.
Common causes
Common causes include Faulty Air Suspension Compressor, Air Suspension Compressor harness is open or shorted, Air Suspension Compressor circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,333
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 30, 2020
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Code C1808 Description

The Air Levelizer Control Module monitors the Air Suspension Compressor. The Air Levelizer Control Module sets the OBDII code when the Air Suspension Compressor is not to factory specifications.
OBDII Code C1808 - Air Suspension Compressor Function - AutoCodes.com
C1808 Code - Air Suspension Compressor Function

What are the Possible Causes of the DTC C1808?

  • Faulty Air Suspension Compressor
  • Air Suspension Compressor harness is open or shorted
  • Air Suspension Compressor circuit poor electrical connection
  • Faulty Air Levelizer Control Module

How to Fix the DTC C1808?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1808 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C1808 code?

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Need Help with the Code?

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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 C1808 Code

1. What does the OBDII code C1808 mean?

C1808 indicates a fault with the air suspension compressor function, typically related to its operation or performance.

2. What are the common symptoms of code C1808?

Symptoms may include a sagging or uneven suspension, a noisy or non-functioning compressor, and a suspension warning light on the dashboard.

3. What causes the C1808 code to appear?

Common causes include a faulty air suspension compressor, damaged wiring or connectors, a blown fuse, or issues with the air suspension control module.

4. How can I diagnose code C1808?

Start by visually inspecting the air suspension compressor, wiring, and connectors for damage. Then, use a scan tool to confirm the code and check for additional related codes.

5. Can I drive my vehicle with the C1808 code?

It’s possible to drive with this code, but the suspension may not perform as intended, potentially affecting ride comfort and vehicle handling.

6. How do you fix the C1808 code?

Repairs may involve replacing the air suspension compressor, repairing or replacing damaged wiring, or addressing any problems with the control module.

7. How much does it cost to fix code C1808?

Repair costs vary but typically range from $300 to $1,200, depending on whether the compressor or other components need replacement.

8. Can a blown fuse cause the C1808 code?

Yes, a blown fuse in the air suspension circuit can interrupt compressor function and trigger the code.

9. How do I reset the C1808 code?

After completing repairs, clear the code using an OBDII scan tool. If the issue persists, the code may reappear.

10. What happens if I ignore the C1808 code?

Ignoring the code can lead to further suspension system damage, reduced ride quality, and potentially unsafe driving conditions.

Discuss the causes and fixes for C1808 OBDII Code

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