Engine-CodesGeneric – C1819

C1819 Code - Air Suspension RR Air Compress Request Exceeded Max Timing

Quick Answer

The C1819 code refers to an issue with the rear right (RR) air suspension system's air compressor requesting more air than the maximum timing allows. Common causes include Malfunctioning air compressor, Air leak in the suspension system, Faulty air pressure sensor. 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
C1819 indicates Air Suspension RR Air Compress Request Exceeded Max Timing.
Common causes
Common causes include Malfunctioning air compressor, Air leak in the suspension system, Faulty air pressure sensor.
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 10, 2024
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Code C1819 Description

The C1819 code refers to an issue with the rear right (RR) air suspension system's air compressor requesting more air than the maximum timing allows. This code is commonly found in vehicles equipped with air suspension systems, which are designed to provide a smoother ride and adjust the vehicle's height based on driving conditions. When the air compressor requests more air than the system can provide within the set timing parameters, it can lead to issues with the suspension system's functionality.

OBDII Code C1819 - Air Suspension RR Air Compress Request Exceeded Max Timing
C1819 Code - Air Suspension RR Air Compress Request Exceeded Max Timing

Common Causes of C1819

  1. Malfunctioning air compressor
  2. Air leak in the suspension system
  3. Faulty air pressure sensor
  4. Control module issues
  5. Electrical wiring problems

Symptoms of C1819

  1. Uneven ride height on the rear right side of the vehicle
  2. Harsh or bumpy ride quality
  3. Suspension system fails to adjust to road conditions
  4. Dashboard warning light illuminated indicating air suspension system issue

How to Fix C1819

  1. Diagnose the specific cause of the C1819 code by using a scan tool to retrieve additional fault codes and conducting a visual inspection of the air suspension components.
  2. Test the air compressor, air lines, air springs, and pressure sensor to identify any faulty components that may be triggering the code.
  3. Repair or replace any damaged or malfunctioning parts, such as the air compressor, air lines, or pressure sensor.
  4. Clear the diagnostic trouble codes from the system's memory and reset the air suspension system to ensure proper operation.
  5. Test drive the vehicle to verify that the C1819 code no longer appears and that the suspension system functions correctly.

Cost to Fix C1819

The typical repair costs for addressing the C1819 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, repairing an air suspension system can range from $500 to $1500, including parts and labor. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It's advisable to check with local auto repair shops for a more accurate estimate based on your specific circumstances.

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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 C1819 Code

1. What are the common symptoms of OBDII code C1819 (Air Suspension RR Air Compress Request Exceeded Max Timing)?

- Common symptoms include a noticeable decrease in ride comfort, uneven ride height, and an illuminated air suspension warning light on the dashboard.

2. What are the possible causes of OBDII code C1819?

- The code C1819 can be triggered by issues such as a faulty air compressor, damaged air suspension components, leaks in the air suspension system, or electrical faults.

3. How can I diagnose the cause of OBDII code C1819?

- To diagnose the cause of code C1819, it is recommended to perform a visual inspection of the air suspension system, check for any visible leaks, test the air compressor for functionality, and scan the system for any additional fault codes.

4. What are some repair tips for fixing OBDII code C1819?

- Repair tips for resolving code C1819 may include repairing or replacing damaged air suspension components, fixing any leaks in the system, testing and potentially replacing the air compressor, and ensuring all electrical connections are secure.

5. Can I drive my vehicle with OBDII code C1819 present?

- It is not recommended to drive your vehicle with OBDII code C1819 present, as it may lead to further damage to the air suspension system and compromise the safety and performance of your vehicle.

6. How much does it typically cost to repair OBDII code C1819?

- The cost of repairing OBDII code C1819 can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Is OBDII code C1819 a common issue in certain vehicle makes and models?

- OBDII code C1819 related to air suspension RR air compress request exceeded max timing is more commonly found in vehicles equipped with air suspension systems, such as luxury sedans and SUVs.

8. Can resetting the OBDII system clear code C1819?

- Resetting the OBDII system may temporarily clear code C1819, but if the underlying issue is not addressed and repaired, the code is likely to reappear once the system detects the fault again.

9. Are there any preventive maintenance measures to avoid OBDII code C1819?

- Regularly inspecting the air suspension system for leaks, ensuring proper maintenance of the air compressor, and addressing any suspension-related issues promptly can help prevent OBDII code C1819 from occurring.

10. Should I attempt to repair OBDII code C1819 myself, or seek professional help?

- Due to the complexity of diagnosing and repairing issues related to the air suspension system and OBDII code C1819, it is recommended to seek the expertise of a qualified mechanic or technician for proper diagnosis and repair.

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