AutoCodes – Generic – C1930

C1930 Code - 4-Wheel Active Steer Front Control Unit

Quick Answer

It transmits the value calculated by 4-Wheel Active Steer (4WAS) main control unit to 4WAS front control unit via 4WAS communication line (line for 4WAS system only). Common causes include Faulty 4-Wheel Active Steer Front Control Unit, 4-Wheel Active Steer Front Control Unit harness is open or shorted, 4-Wheel Active Steer Front Control Unit circuit poor electrical connection. 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: C1930 indicates 4-Wheel Active Steer Front Control Unit.
Common causes: Common causes include Faulty 4-Wheel Active Steer Front Control Unit, 4-Wheel Active Steer Front Control Unit harness is open or shorted, 4-Wheel Active Steer Front Control Unit circuit poor electrical connection.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 5,038

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 Dec 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C1930 Description

It transmits the value calculated by 4-Wheel Active Steer (4WAS) main control unit to 4WAS front control unit via 4WAS communication line (line for 4WAS system only). 4WAS front control unit controls 4WAS front actuator according to the received command value.

OBDII Code C1930 - 4-Wheel Active Steer Front Control Unit - AutoCodes.com — C1930 Code - 4-Wheel Active Steer Front Control Unit

What does this mean?

What are the Possible Causes of the DTC C1930?

Faulty 4-Wheel Active Steer Front Control Unit
4-Wheel Active Steer Front Control Unit harness is open or shorted
4-Wheel Active Steer Front Control Unit circuit poor electrical connection

How to Fix the DTC C1930?

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 C1930 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 C1930 code?

Need more information on how to fix the C1930 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1930 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1930 Infiniti — 4-Wheel Active Steer Front Control Unit
C1930 Lexus — Open In Front Metal Board Temperature Sensor Circuit
C1930 Nissan — 4-Wheel Active Steer Front Control Unit
C1930 Toyota — Open In Front Metal Board Temperature Sensor Circuit

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 C1930 Code

1. What are common symptoms of OBDII code C1930 (4-Wheel Active Steer Front Control Unit)?

The common symptoms include malfunctioning of the active steering system, steering wheel vibration, and difficulty controlling the vehicle.

2. What are the potential causes of OBDII code C1930?

Possible causes of this code may include a faulty front control unit, wiring issues, or a malfunction within the active steering system.

3. How can I diagnose OBDII code C1930?

Diagnosing this code typically involves using an OBDII scanner to read the error code, inspecting the front control unit and related wiring, and testing the active steering system components for proper function.

4. Can I continue driving with OBDII code C1930 present?

It is not recommended to continue driving with this code active, as it can affect the vehicle's steering performance and safety.

5. How can I repair OBDII code C1930?

Repairing this code may involve replacing the front control unit, repairing any damaged wiring, or addressing any issues within the active steering system as recommended by a qualified mechanic.

6. Is it safe to reset OBDII code C1930 without fixing the underlying issue?

Resetting the code without addressing the underlying problem may temporarily clear the error code, but the issue will likely reoccur, compromising the vehicle's steering system.

7. Can a DIY enthusiast fix OBDII code C1930 at home?

While some basic inspections and checks can be done at home, diagnosing and repairing OBDII code C1930 may require specialized tools and expertise, making it more suitable for a professional mechanic.

8. How do I prevent OBDII code C1930 from recurring?

Regular maintenance of the vehicle's steering system, including checking for loose connections and ensuring proper wiring integrity, can help prevent the recurrence of this error code.

9. Are there any recalls or technical service bulletins related to OBDII code C1930?

It is advisable to check with the vehicle manufacturer or authorized service centers for any recalls or technical service bulletins related to OBDII code C1930 to address the issue effectively.

10. Can extreme weather conditions trigger OBDII code C1930?

Extreme weather conditions, such as extreme heat or cold, can potentially affect the performance of the front control unit and components related to the active steering system, leading to the triggering of OBDII code C1930.