AutoCodes – Generic – C1667

C1667 Code - 4WAS Lock Insertion

Quick Answer

The 4 Wheel Active Steer (4WAS) front lock solenoid valve (lock structure) is controlled by the 4WAS front control unit, and locks/unlocks 4WAS Front Actuator. Common causes include Faulty 4WAS Front Actuator, 4WAS Front Actuator harness is open or shorted, 4WAS Front Actuator 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: C1667 indicates 4WAS Lock Insertion.
Common causes: Common causes include Faulty 4WAS Front Actuator, 4WAS Front Actuator harness is open or shorted, 4WAS Front Actuator 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.

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Code Popularity 758

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 17, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1667 Description

The 4 Wheel Active Steer (4WAS) front lock solenoid valve (lock structure) is controlled by the 4WAS front control unit, and locks/unlocks 4WAS Front Actuator. If a strong force (rotation direction) is applied to the 4WAS front actuator, the locking mechanism (holder) absorbs the force and locks 4WAS front actuator. The front wheel steering angle sensor detects a turning angle of the 4WAS front motor. 4WAS front motor controls the number of revolutions by a command value from the 4WAS front control unit. Gear shaft is an output axis of the 4WAS front motor. (Gear shaft = 4WAS front motor revolution + steering angle) Spiral cables mean the power line and signal lines of the 4WAS front motor.

OBDII Code C1667 - 4WAS Lock Insertion - AutoCodes.com — C1667 Code - 4WAS Lock Insertion

What does this mean?

What are the Possible Causes of the DTC C1667?

Faulty 4WAS Front Actuator
4WAS Front Actuator harness is open or shorted
4WAS Front Actuator circuit poor electrical connection

How to Fix the DTC C1667?

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 C1667 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 C1667 code?

Need more information on how to fix the C1667 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1667 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1667 Infiniti — 4WAS Lock Insertion
C1667 Nissan — 4WAS Lock Insertion

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 C1667 Code

1. What does OBDII code C1667 indicate?

The code C1667, also known as 4WAS Lock Insertion, typically points to a fault with the four-wheel antilock system lock insertion.

2. What are common symptoms of OBDII code C1667?

Common symptoms associated with code C1667 may include the ABS warning light illuminating on the dashboard, issues with the ABS system functionality, and potential difficulty in engaging the four-wheel drive system.

3. What are possible causes of OBDII code C1667?

Potential causes of code C1667 include damaged or malfunctioning wheel speed sensors, issues with the ABS control module, wiring faults in the ABS system, or problems with the four-wheel drive actuator.

4. How can I diagnose OBDII code C1667?

Diagnosing code C1667 typically involves using a diagnostic scanner capable of reading ABS fault codes to pinpoint the exact issue within the four-wheel antilock system.

5. Can I continue driving with OBDII code C1667 present?

It is not recommended to continue driving with code C1667 active, as it may compromise the functionality of the ABS system and affect the vehicle's safety while driving.

6. How can I repair OBDII code C1667?

Repairing code C1667 often involves addressing the specific underlying issue causing the fault, such as replacing a faulty wheel speed sensor, repairing wiring faults, or recalibrating the ABS system.

7. Is it possible to reset OBDII code C1667 without repair?

While clearing the fault code may temporarily remove the warning light, it is essential to address the root cause of code C1667 to prevent the issue from recurring and ensure the proper functioning of the ABS system.

8. Can weather conditions affect OBDII code C1667?

Extreme weather conditions or driving in harsh environments may contribute to the development of issues related to code C1667, such as water ingress causing sensor malfunctions or corrosion in the ABS system components.

9. How long does it take to repair OBDII code C1667?

The repair time for code C1667 can vary depending on the specific cause of the fault and the complexity of the repair needed. It is advisable to consult a professional mechanic for a more accurate estimate.

10. Are there any preventive measures to avoid OBDII code C1667?

Regular maintenance of the ABS system, including checking the condition of wheel speed sensors, inspecting wiring for damage, and keeping the system clean, can help prevent issues leading to code C1667.