AutoCodes – Generic – C1566

C1566 Code - Left Rear Ride Height Level Performance

Quick Answer

The Air Suspension Control Module (ASCM) monitors the Ride Height Air Pump. Common causes include Air System Leak, Faulty Air Suspension Control Module (ASCM). 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: C1566 indicates Left Rear Ride Height Level Performance.
Common causes: Common causes include Air System Leak, Faulty Air Suspension Control Module (ASCM).
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.

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Code Popularity 1,577

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 01, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1566 Description

The Air Suspension Control Module (ASCM) monitors the Ride Height Air Pump. The ASCM sets the OBDII code when it detects the Air Spring Valve as been used for a time exceeding three minutes within the last ten minutes.

OBDII Code C1566 - Left Rear Ride Height Level Performance - AutoCodes.com — C1566 Code - Left Rear Ride Height Level Performance

What does this mean?

What are the Possible Causes of the DTC C1566?

Air System Leak
Faulty Air Suspension Control Module (ASCM)

How to Fix the DTC C1566?

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 C1566 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 C1566 code?

Need more information on how to fix the C1566 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1566 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1566 Chrysler — Left Rear Ride Height Level Performance
C1566 Dodge — Left Rear Ride Height Level Performance
C1566 Jeep — Left Rear Ride Height Level Performance
C1566 RAM — Left Rear Ride Height Level Performance

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 C1566 Code

1. What are the common symptoms of OBDII code C1566 (Left Rear Ride Height Level Performance)?

- The common symptoms include uneven ride height on the left rear side of the vehicle, a noticeable tilt, and potential issues with the vehicle's suspension system.

2. What are the possible causes of OBDII code C1566?

- The code C1566 can be caused by issues with the ride height sensor, a faulty suspension component, air suspension leaks, or electronic control module malfunctions.

3. How can I diagnose the cause of OBDII code C1566?

- Diagnosing the code typically involves inspecting the ride height sensor, checking for suspension component wear or damage, and using a diagnostic scan tool to monitor sensor readings.

4. What are some repair tips for resolving OBDII code C1566?

- Repair tips may include recalibrating the ride height sensor, repairing or replacing damaged suspension components, fixing air suspension leaks, and resetting the electronic control module.

5. Can driving with OBDII code C1566 cause further damage to the vehicle?

- Continuing to drive with the code may lead to worsened ride quality, potential suspension damage, and safety concerns due to an uneven ride height affecting vehicle stability.

6. How much does it typically cost to repair OBDII code C1566?

- The cost of repairing the code can vary depending on the specific cause and necessary repairs, ranging from a few hundred to over a thousand dollars for more extensive issues.

7. Can I reset OBDII code C1566 on my own, or do I need a professional mechanic?

- Resetting the code may be possible with a diagnostic scan tool for some cases, but it's recommended to address the underlying issue to prevent the code from reoccurring.

8. Is OBDII code C1566 specific to a particular vehicle make or model?

- OBDII code C1566 can appear in various vehicle makes and models equipped with an OBDII system and an air suspension or ride height leveling system.

9. How urgent is it to address OBDII code C1566 once it's detected?

- It's generally recommended to address the code promptly to prevent further damage to the suspension system, ensure safe driving conditions, and maintain optimal ride comfort.

10. Can weather or road conditions affect the triggering of OBDII code C1566?

- Extreme weather conditions, rough roads, or driving on uneven terrain can potentially exacerbate issues related to ride height sensors and suspension components, leading to the triggering of code C1566.