AutoCodes – Generic – C1606

C1606 Code - Electric Power Steering Motor

Quick Answer

The Electric Power Steering (EPS) motor provides the assist torque by control signal from EPS Control Unit. Common causes include Faulty Electric Power Steering Angle Sensor, Electric Power Steering Angle Sensor harness is open or shorted, Electric Power Steering Angle Sensor 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: C1606 indicates Electric Power Steering Motor.
Common causes: Common causes include Faulty Electric Power Steering Angle Sensor, Electric Power Steering Angle Sensor harness is open or shorted, Electric Power Steering Angle Sensor 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 6,905

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 11, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1606 Description

The Electric Power Steering (EPS) motor provides the assist torque by control signal from EPS Control Unit. The EPS Control sets the OBDII code when the motor driver malfunction in EPS Control Unit or EPS Motor malfunction is detected.

OBDII Code C1606 - Electric Power Steering Motor - AutoCodes.com — C1606 Code - Electric Power Steering Motor

What does this mean?

What are the Possible Causes of the DTC C1606?

Faulty Electric Power Steering Angle Sensor
Electric Power Steering Angle Sensor harness is open or shorted
Electric Power Steering Angle Sensor circuit poor electrical connection
Faulty Electric Power Steering Motor
Faulty Electric Power Steering Torque Sensor Control Unit

How to Fix the DTC C1606?

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 C1606 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 C1606 code?

Need more information on how to fix the C1606 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1606 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1606 Infiniti — Electric Power Steering Motor
C1606 Nissan — Electric Power Steering Motor

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 C1606 Code

1. What are common symptoms of OBDII code C1606 related to the Electric Power Steering Motor?

- Common symptoms include stiff or heavy steering, steering wheel vibration, and difficulty controlling the vehicle's direction.

2. What are possible causes of OBDII code C1606 related to the Electric Power Steering Motor?

- Possible causes include a faulty electric power steering motor, damaged wiring or connectors, low power steering fluid levels, or a malfunctioning steering angle sensor.

3. How can I diagnose the Electric Power Steering Motor issue associated with OBDII code C1606?

- Diagnosis typically involves using a diagnostic scanner to retrieve the trouble code, inspecting the power steering system components for visible damage, and testing the electric power steering motor for proper function.

4. Can I continue driving my vehicle with OBDII code C1606 present?

- It is not recommended to continue driving with this code present, as it can affect the vehicle's steering performance and safety. It is best to address the issue promptly.

5. How can I repair OBDII code C1606 related to the Electric Power Steering Motor?

- Repair may involve replacing the electric power steering motor, repairing damaged wiring or connectors, refilling power steering fluid, or recalibrating the steering angle sensor.

6. Are there any DIY tips for troubleshooting OBDII code C1606?

- DIY tips include checking the power steering fluid level, inspecting the wiring and connectors for damage, and ensuring the steering angle sensor is properly calibrated.

7. Can a faulty Electric Power Steering Motor cause OBDII code C1606?

- Yes, a faulty electric power steering motor can trigger OBDII code C1606 due to issues with the motor's operation affecting the vehicle's power steering system.

8. How important is it to address OBDII code C1606 promptly?

- It is crucial to address OBDII code C1606 promptly to ensure proper steering functionality and safety while driving. Ignoring the issue can lead to further damage and potential safety risks.

9. Is it safe to reset the OBDII code C1606 without fixing the underlying issue?

- Resetting the code without addressing the underlying issue is not recommended, as the problem will likely reoccur and potentially worsen over time. It is best to diagnose and repair the root cause of the code.

10. Can environmental factors contribute to triggering OBDII code C1606 related to the Electric Power Steering Motor?

- Environmental factors such as extreme temperatures or water exposure can potentially affect the operation of the electric power steering motor, leading to the triggering of OBDII code C1606.