AutoCodes – Generic – C1990

C1990 Code - New Control Module Initialization

Quick Answer

The Air Suspension Control Module will set the Diagnostic Trouble Code (DTC) when the Air Suspension Control Module Initialization was not performed. Common causes include Air Suspension Control Module Initialization, Faulty Air Suspension Control Module, Air Suspension Control Module 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
C1990 indicates New Control Module Initialization.
Common causes
Common causes include Air Suspension Control Module Initialization, Faulty Air Suspension Control Module, Air Suspension Control Module 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,475
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 21, 2020
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Code C1990 Description

The Air Suspension Control Module will set the Diagnostic Trouble Code (DTC) when the Air Suspension Control Module Initialization was not performed.
OBDII Code C1990 - New Control Module Initialization - AutoCodes.com
C1990 Code - New Control Module Initialization

What are the Possible Causes of the DTC C1990?

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

How to Fix the DTC C1990?

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 C1990 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 C1990 code?

Need more information on how to fix the C1990 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1990 code diagnosed by a professional: Find a repair shop in your area

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 C1990 Code

1. What is OBDII code C1990 for New Control Module Initialization?

The code C1990 indicates a required initialization process for a new control module in the vehicle's system.

2. What are the common symptoms of OBDII code C1990?

Common symptoms of code C1990 may include warning lights on the dashboard, issues with vehicle starting, and potential loss of certain features or functions.

3. What are the possible causes of OBDII code C1990?

Potential causes of code C1990 include a recently replaced control module, a faulty control module, improper installation, or issues with the communication network in the vehicle.

4. How can I diagnose OBDII code C1990?

Diagnosing code C1990 typically involves using a diagnostic scanner to retrieve the code, checking for any related symptoms or recent repairs, and verifying the initialization status of the control module in question.

5. Can I drive my vehicle with OBDII code C1990?

It is generally safe to drive the vehicle with code C1990, but it is recommended to address the issue promptly to prevent any potential long-term problems or issues with the vehicle's performance.

6. How can I repair OBDII code C1990?

To repair code C1990, the new control module may need to be properly initialized using manufacturer-specific procedures or by a qualified technician. It is essential to follow the correct initialization process to resolve the code.

7. Can a DIY enthusiast reset OBDII code C1990?

Resetting code C1990 may require specialized tools and knowledge, so it is recommended to consult a professional mechanic or dealership to ensure the control module is correctly initialized.

8. How much does it cost to fix OBDII code C1990?

The cost of fixing code C1990 can vary depending on the cause of the issue, the labor rates in your area, and whether the control module needs to be reprogrammed or replaced. It is advisable to get a few quotes from different repair shops.

9. Are there any recalls related to OBDII code C1990?

Recalls related to code C1990 are specific to certain vehicle models and manufacturers. It is recommended to check with the manufacturer or visit the National Highway Traffic Safety Administration (NHTSA) website for any recall information.

10. How often does OBDII code C1990 occur in vehicles?

Code C1990 is relatively uncommon compared to other OBDII codes, as it specifically relates to new control module initialization issues. However, it can occur in vehicles that have undergone recent control module replacements or repairs.

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