AutoCodes – Generic – C1620

C1620 Code - Active Yaw Control Control System

Quick Answer

If the abnormal noise form Active Yaw Control (AYC) Differential is heard during corning under the system operation, AYC differential may have a problem. Common causes include Active Yaw Control (AYC) Differential gear oil failure (low oil level, oil contamination), Faulty Active Yaw Control (AYC) Differential. 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: C1620 indicates Active Yaw Control Control System.
Common causes: Common causes include Active Yaw Control (AYC) Differential gear oil failure (low oil level, oil contamination), Faulty Active Yaw Control (AYC) Differential.
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 6,807

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 15, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1620 Description

If the abnormal noise form Active Yaw Control (AYC) Differential is heard during corning under the system operation, AYC differential may have a problem.

OBDII Code C1620 - Active Yaw Control Control System - AutoCodes.com — C1620 Code - Active Yaw Control Control System

What does this mean?

What are the Possible Causes of the DTC C1620?

Active Yaw Control (AYC) Differential gear oil failure (low oil level, oil contamination)
Faulty Active Yaw Control (AYC) Differential

How to Fix the DTC C1620?

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 C1620 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 C1620 code?

Need more information on how to fix the C1620 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1620 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1620 Mitsubishi — Active Yaw Control Control System

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 C1620 Code

1. What are the common symptoms of OBDII code C1620 (Active Yaw Control Control System)?

The common symptoms include the ABS warning light turning on, traction control system malfunctioning, and potential issues with vehicle stability during turns.

2. What are the possible causes of OBDII code C1620?

Possible causes of this code include a faulty yaw rate sensor, damaged wiring or connectors in the yaw control system, or a malfunctioning control module.

3. How can I diagnose the OBDII code C1620?

Diagnosis involves using a diagnostic scanner to retrieve the code, checking for any related codes or system malfunctions, and conducting a visual inspection of the yaw control system components.

4. Can I continue driving with OBDII code C1620?

It is not recommended to continue driving with this code as it may affect the vehicle's stability and safety systems. Prompt diagnosis and repair are advised.

5. How can I repair OBDII code C1620?

Repairing this code may involve replacing the faulty yaw rate sensor, repairing damaged wiring or connectors, or reprogramming the control module as needed.

6. Are there any DIY tips for fixing OBDII code C1620?

While basic troubleshooting like checking for loose connections or damaged wiring is possible, it is recommended to have a professional technician diagnose and repair this code due to its critical nature.

7. How much does it typically cost to repair OBDII code C1620?

The repair cost for this code can vary depending on the specific cause of the issue, but it may range from $200 to $600 or more, including parts and labor.

8. Can extreme weather conditions trigger OBDII code C1620?

Extreme weather conditions, especially if they lead to damage or corrosion in the yaw control system components, can potentially trigger this OBDII code.

9. Will OBDII code C1620 affect my vehicle's performance?

Yes, this code can affect your vehicle's performance by impacting its stability and safety systems, so it is important to address the issue promptly.

10. How often does OBDII code C1620 occur in vehicles?

While not as common as some other OBDII codes, occurrences of code C1620 can vary depending on the vehicle make and model, as well as the driving conditions and maintenance history.