AutoCodes – Nissan – C1661 Nissan

C1661 Nissan Code - 4WAS Front Lock Solenoid Valve

Quick Answer

The 4 Wheel Active Steer (4WAS) Front Lock Solenoid Valve is activated in the active test (lock release). Common causes include Faulty 4WAS Front Control Unit, Faulty 4WAS Front Lock Solenoid Valve, 4WAS Front Lock Solenoid Valve 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: C1661 Nissan indicates 4WAS Front Lock Solenoid Valve.
Common causes: Common causes include Faulty 4WAS Front Control Unit, Faulty 4WAS Front Lock Solenoid Valve, 4WAS Front Lock Solenoid Valve 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.

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Code Popularity 1,066

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 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1661 Nissan Description

The 4 Wheel Active Steer (4WAS) Front Lock Solenoid Valve is activated in the active test (lock release). The secured 4WAS front actuator is released. 4WAS Front Control Unit controls 4WAS front actuator. 4WAS front actuator releases the lock when the engine speed signal is ON. 4WAS front actuator applies the lock when the engine speed signal is OFF.

OBDII Code C1661 Nissan - 4WAS Front Lock Solenoid Valve - AutoCodes.com — C1661 Nissan Code - 4WAS Front Lock Solenoid Valve

What does this mean?

What are the Possible Causes of the DTC C1661 Nissan?

Faulty 4WAS Front Control Unit
Faulty 4WAS Front Lock Solenoid Valve
4WAS Front Lock Solenoid Valve harness is open or shorted
4WAS Front Lock Solenoid Valve circuit poor electrical connection

How to Fix the DTC C1661 Nissan?

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 C1661 Nissan 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 C1661 Nissan code?

Need more information on how to fix the C1661 Nissan code? Get Access to Factory Service Manuals

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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 C1661 Nissan Code

1. What does the OBDII code C1661 for the 4WAS Front Lock Solenoid Valve in a Nissan indicate?

The code C1661 specifically points to an issue with the 4WAS (Four Wheel Active Steer) front lock solenoid valve in a Nissan vehicle.

2. What are some common symptoms of a C1661 code related to the 4WAS Front Lock Solenoid Valve?

Common symptoms include difficulty steering, uneven tire wear, abnormal noises when turning, and the 4WAS system not functioning properly.

3. What are possible causes of the C1661 Nissan trouble code for the 4WAS Front Lock Solenoid Valve?

Causes can include a faulty front lock solenoid valve, wiring issues, a malfunctioning 4WAS control module, or low hydraulic fluid levels.

4. How can I diagnose the C1661 code for the 4WAS Front Lock Solenoid Valve in my Nissan?

Diagnosis usually involves using a diagnostic scanner to retrieve the trouble code, inspecting the front lock solenoid valve and associated wiring, and testing the 4WAS system components.

5. Are there any DIY repair tips for addressing the C1661 code related to the 4WAS Front Lock Solenoid Valve?

While basic checks like inspecting wiring connections can be done by DIY enthusiasts, repairing or replacing the front lock solenoid valve and diagnosing complex electrical issues may require professional assistance.

6. Can driving with a C1661 fault code affecting the 4WAS Front Lock Solenoid Valve cause further damage?

Continuing to drive with this issue can potentially lead to more severe problems, such as damage to the steering system or other components of the 4WAS system.

7. How much does it typically cost to repair a C1661 code related to the 4WAS Front Lock Solenoid Valve in a Nissan?

Repair costs can vary depending on the exact cause of the issue and whether you choose to address it yourself or seek help from a mechanic. Costs may range from a few hundred to over a thousand dollars.

8. Is it safe to drive my Nissan with a C1661 code for the 4WAS Front Lock Solenoid Valve?

It is not recommended to drive your Nissan with unresolved 4WAS system issues as it can affect the vehicle's handling and safety. It's best to have the problem diagnosed and repaired promptly.

9. How long does it typically take to fix a C1661 fault code linked to the 4WAS Front Lock Solenoid Valve?

The repair time can vary based on the exact cause of the issue, availability of parts, and the expertise of the technician. It may take anywhere from a few hours to a full day to complete the repair.

10. Can resetting or clearing the C1661 code related to the 4WAS Front Lock Solenoid Valve temporarily resolve the issue?

Clearing the code may temporarily turn off the check engine light, but if the underlying problem causing the code is not addressed, it is likely to reappear once the system detects the issue again.