AutoCodes – Infiniti – C1601 Infiniti

C1601 Infiniti Code - Electric Power Steering Battery Power Supply

Quick Answer

The Electric Power Steering (EPS) Control Unit receives power from the battery and then provides power to the EPS DC/DC converter and EPS motor control circuit. Common causes include Faulty Electric Power Steering (EPS) Control Unit, EPS Control Unit harness is open or shorted, EPS Control Unit 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: C1601 Infiniti indicates Electric Power Steering Battery Power Supply.
Common causes: Common causes include Faulty Electric Power Steering (EPS) Control Unit, EPS Control Unit harness is open or shorted, EPS Control Unit 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 1,500

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 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1601 Infiniti Description

The Electric Power Steering (EPS) Control Unit receives power from the battery and then provides power to the EPS DC/DC converter and EPS motor control circuit. (Or EPS Control Unit receives power for EPS DC/DC converter and EPS motor control circuit from the battery.) The EPS Control Unit sets the ODBII code when the power supply malfunction supplied to EPS control unit is detected.

OBDII Code C1601 Infiniti - Electric Power Steering Battery Power Supply - AutoCodes.com — C1601 Infiniti Code - Electric Power Steering Battery Power Supply

What does this mean?

What are the Possible Causes of the DTC C1601 Infiniti?

Faulty Electric Power Steering (EPS) Control Unit
EPS Control Unit harness is open or shorted
EPS Control Unit circuit poor electrical connection

How to Fix the DTC C1601 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 C1601 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.

Need more information about the C1601 Infiniti code?

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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 C1601 Infiniti Code

1. What does the OBDII code C1601 mean for an Infiniti?

The code C1601 indicates an issue with the electric power steering (EPS) battery power supply, which can affect the proper functioning of the EPS system.

2. What are the common symptoms of the C1601 code in an Infiniti?

Symptoms may include a stiff or hard-to-turn steering wheel, the EPS warning light illuminating on the dashboard, or intermittent power steering assistance.

3. What causes the C1601 code to appear?

The code can be triggered by a weak or faulty battery, corroded or loose battery connections, damaged wiring to the EPS system, or a malfunctioning EPS control unit.

4. Can a dying car battery cause the C1601 code?

Yes, a weak or failing battery can result in insufficient power supply to the EPS system, which may trigger the C1601 code.

5. How do I diagnose the C1601 code on my Infiniti?

Start by checking the battery voltage and connections, inspect the wiring and fuses related to the EPS system, and use a scan tool to monitor EPS system data.

6. Is it safe to drive with the C1601 code present?

Driving with this code is not recommended, as it may result in reduced or complete loss of power steering assistance, making the vehicle harder to control.

7. How can I fix the C1601 code on my Infiniti?

Repairs may include recharging or replacing the battery, securing or cleaning battery terminals, repairing damaged wiring, or replacing the EPS control unit if necessary.

8. Can a blown fuse cause the C1601 code?

Yes, a blown fuse in the EPS circuit can interrupt the power supply, leading to the C1601 code.

9. How much does it cost to repair the C1601 code?

Repair costs can vary, ranging from $100 to $500 or more, depending on whether the issue lies with the battery, wiring, or EPS control unit.

10. Will clearing the C1601 code solve the problem?

Clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return. Proper diagnosis and repair are necessary.