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Engine-Codes – Generic – C1667

C1667 Code - 4WAS Lock Insertion

Quick Answer

The C1667 code relates to the 4WAS (Four Wheel Antilock System) lock insertion in a vehicle. Common causes include Faulty wheel speed sensors, Damaged wiring or connectors in the ABS system, Hydraulic fluid leaks or air in the brake lines. 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 wheel speed sensors, Damaged wiring or connectors in the ABS system, Hydraulic fluid leaks or air in the brake lines.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code C1667 Description

The C1667 code relates to the 4WAS (Four Wheel Antilock System) lock insertion in a vehicle. This code is typically found in vehicles equipped with four-wheel drive systems that feature an antilock braking system. The 4WAS lock insertion refers to a malfunction in the system that controls the locking and unlocking of the wheels during braking to prevent skidding and maintain traction.

OBDII Code C1667 - 4WAS Lock Insertion
C1667 Code - 4WAS Lock Insertion

Common Causes of C1667

  1. Faulty wheel speed sensors
  2. Damaged wiring or connectors in the ABS system
  3. Hydraulic fluid leaks or air in the brake lines
  4. Malfunctioning ABS control module
  5. Mechanical issues with the wheel bearings or brake components

Symptoms of C1667

  1. Illumination of the ABS warning light on the dashboard
  2. Increased stopping distance during braking
  3. Traction control system engaging unexpectedly
  4. Wheel lock-up or skidding during braking
  5. Unusual noises coming from the braking system

How to Fix C1667

  1. Diagnose the specific cause of the C1667 code using a diagnostic scanner to pinpoint the exact issue within the 4WAS system.
  2. Inspect and test the wheel speed sensors to determine if they are functioning correctly or need replacement.
  3. Check the wiring harness and connectors for any damage or corrosion, repairing or replacing as necessary.
  4. Bleed the brake system to remove any air trapped in the lines and ensure proper hydraulic pressure.
  5. Replace any faulty ABS components, such as the control module or hydraulic unit, to restore the functionality of the 4WAS system.

Cost to Fix C1667

The cost of repairing a C1667 code can vary depending on the specific cause of the issue and the vehicle's make and model. On average, the repair costs for addressing a 4WAS lock insertion code can range from $200 to $800, including parts and labor. However, it is essential to note that labor rates at auto repair shops can vary significantly based on location, shop reputation, and the complexity of the repair. It is advisable to consult with a qualified mechanic or dealership to obtain a more accurate estimate based on the specific circumstances of the vehicle in question.

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Code C1667 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 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.

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