AutoCodes – Infiniti – C1668 Infiniti

C1668 Infiniti Code - Lock Holder Gap Detect

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: C1668 Infiniti indicates Lock Holder Gap Detect.
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 1,071

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 C1668 Infiniti 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 4WAS front actuator, the locking mechanism (holder) absorbs the force and locks 4WAS front actuator. Front wheel steering angle sensor detects a turning angle of 4WAS front motor. 4WAS front motor controls number of revolutions by a command value from the 4WAS front control unit. Gear shaft is an output axis of 4WAS front motor. (Gear shaft = 4WAS front motor revolution + steering angle) Spiral cables mean the power line and signal lines of 4WAS front motor.

OBDII Code C1668 Infiniti - Lock Holder Gap Detect - AutoCodes.com — C1668 Infiniti Code - Lock Holder Gap Detect

What does this mean?

What are the Possible Causes of the DTC C1668 Infiniti?

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

How to Fix the DTC C1668 Infiniti?

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 C1668 Infiniti 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.

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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 C1668 Infiniti Code

1. What does the OBDII code C1668 mean on an Infiniti?

C1668 indicates a "Lock Holder Gap Detect" issue, which typically refers to a problem with the locking mechanism or alignment in certain vehicle systems, such as the steering lock or seat adjustment.

2. What are the common symptoms of the C1668 code in an Infiniti?

Symptoms may include difficulty locking or unlocking a component, unusual noises from the locking mechanism, a warning light on the dashboard, or failure of the system to engage properly.

3. What causes the C1668 code to appear in an Infiniti?

Common causes include misaligned locking components, a damaged lock holder, electrical issues like faulty wiring or connectors, or a malfunction within the related control module.

4. Can a loose connection trigger the C1668 code in an Infiniti?

Yes, a loose or corroded electrical connection can disrupt the signal and lead to the detection of a gap in the lock holder.

5. How is the C1668 code diagnosed in an Infiniti?

A technician will typically use a scan tool to confirm the code, inspect the locking mechanism for physical damage or misalignment, and check the wiring and connectors for continuity or corrosion.

6. Is it safe to drive with the C1668 code present in an Infiniti?

It depends on the affected system. If it impacts critical components like the steering lock, it might pose a safety risk and should be addressed promptly.

7. How can the C1668 code be fixed on an Infiniti?

Repairs may include realigning the locking mechanism, replacing damaged components, repairing or replacing faulty wiring, or reprogramming the control module if necessary.

8. What tools are needed to fix the C1668 code in an Infiniti?

Tools may include an OBDII scanner, multimeter for electrical testing, and basic hand tools for component inspection and repair.

9. Can the C1668 code clear itself after repairs?

If the underlying issue is resolved, the code may clear on its own after a few drive cycles, or it can be manually cleared with an OBDII scanner.

10. What is the estimated cost to fix the C1668 code in an Infiniti?

Repair costs vary depending on the root cause but can range from $100 for simple fixes like wiring repairs to several hundred dollars for part replacements or module reprogramming.