AutoCodes – Generic – C15AD

C15AD Code - Ride Height System Performance Or Incorrect Operation

Quick Answer

The Air Suspension Control Module (ASCM) monitors the Ride Height System. Common causes include Blown Air Suspension Compressor Relay, Faulty Air Suspension Compressor, Air Suspension Compressor harness is open or shorted. 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: C15AD indicates Ride Height System Performance Or Incorrect Operation.
Common causes: Common causes include Blown Air Suspension Compressor Relay, Faulty Air Suspension Compressor, Air Suspension Compressor harness is open or shorted.
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 831

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 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C15AD Description

The Air Suspension Control Module (ASCM) monitors the Ride Height System. The ASCM sets the OBDII code when it checks for ride height sensor movement during the middle of a level change. If it does not see this movement then this Diagnostic Trouble Code (DTC) is set.

OBDII Code C15AD - Ride Height System Performance Or Incorrect Operation - AutoCodes.com — C15AD Code - Ride Height System Performance Or Incorrect Operation

What does this mean?

What are the Possible Causes of the DTC C15AD?

Blown Air Suspension Compressor Relay
Faulty Air Suspension Compressor
Air Suspension Compressor harness is open or shorted
Air Suspension Compressor circuit poor electrical connection

How to Fix the DTC C15AD?

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 C15AD 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 C15AD code?

Need more information on how to fix the C15AD code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C15AD code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C15AD Chrysler — Ride Height System Performance Or Incorrect Operation
C15AD Dodge — Ride Height System Performance Or Incorrect Operation
C15AD Jeep — Ride Height System Performance Or Incorrect Operation
C15AD RAM — Ride Height System Performance Or Incorrect Operation

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 C15AD Code

1. What are common symptoms of OBDII code C15AD - Ride Height System Performance Or Incorrect Operation?

- Common symptoms include uneven ride height, suspension issues, and warning lights on the dashboard related to the ride height system.

2. What causes OBDII code C15AD to trigger?

- This code is typically triggered by issues with the ride height sensors, control module, wiring, or mechanical components within the ride height system.

3. How does the ride height system work in a vehicle?

- The ride height system uses sensors to monitor the vehicle's height and adjust the suspension accordingly to maintain a consistent ride height under varying loads and driving conditions.

4. Can OBDII code C15AD be safely ignored or reset?

- Ignoring this code may lead to further suspension problems and safety issues. It is recommended to diagnose and repair the underlying cause to ensure proper vehicle operation.

5. What are some DIY repair tips for addressing OBDII code C15AD?

- DIY repair tips include checking the ride height sensors for proper connection, inspecting wiring harnesses for damage, and ensuring that the control module is functioning correctly.

6. How can a mechanic diagnose OBDII code C15AD effectively?

- A mechanic can use a diagnostic scanner to read the code, perform a visual inspection of the ride height system components, and conduct tests to pinpoint the exact cause of the issue.

7. Is it safe to drive with OBDII code C15AD active?

- It is not recommended to drive with this code active, as it can affect the vehicle's handling and suspension performance, potentially compromising safety.

8. How much does it typically cost to repair OBDII code C15AD?

- Repair costs can vary depending on the underlying issue, but they may range from a simple sensor replacement to more complex repairs involving the control module or suspension components.

9. Can weather or road conditions affect the triggering of OBDII code C15AD?

- Extreme weather conditions or rough road surfaces can potentially exacerbate issues with the ride height system, leading to the triggering of this code.

10. How long does it usually take to repair OBDII code C15AD?

- The repair time for this code can vary based on the specific cause and complexity of the issue. Simple repairs may be completed within a few hours, while more involved repairs could take longer.