AutoCodes – Infiniti – C1149 Infiniti

C1149 Infiniti Code - Switch-Over Solenoid Valve Line HSV

Quick Answer

VDC Switch-Over Solenoid Valve (USV) (Cut Valve): The cut valve shuts off the normal brake fluid path from the master cylinder when VDC/TCS is activated. Common causes include Faulty ABS Actuator And Electric Unit, ABS Actuator And Electric Unit harness is open or shorted, ABS Actuator And Electric 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: C1149 Infiniti indicates Switch-Over Solenoid Valve Line HSV.
Common causes: Common causes include Faulty ABS Actuator And Electric Unit, ABS Actuator And Electric Unit harness is open or shorted, ABS Actuator And Electric 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 1,448

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 Aug 17, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1149 Infiniti Description

VDC Switch-Over Solenoid Valve (USV) (Cut Valve): The cut valve shuts off the normal brake fluid path from the master cylinder when VDC/TCS is activated. The VDC Switch-Over Solenoid Valve (HSV) (Suction Valve): The suction valve supplies the brake fluid from the master cylinder to the pump, when VDC/TCS is activated. The Anti-Lock Brake System (ABS) Actuator And Electric Unit (Control Unit) monitors the Switch-Over Solenoid. The ABS Actuator And Electric Unit set the OBDII code when the Switch-Over Solenoid is not to factory specifications.

OBDII Code C1149 Infiniti - Switch-Over Solenoid Valve Line HSV - AutoCodes.com — C1149 Infiniti Code - Switch-Over Solenoid Valve Line HSV

What does this mean?

What are the Possible Causes of the DTC C1149 Infiniti?

Faulty ABS Actuator And Electric Unit
ABS Actuator And Electric Unit harness is open or shorted
ABS Actuator And Electric Unit circuit poor electrical connection

How to Fix the DTC C1149 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 C1149 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 C1149 Infiniti code?

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Need Help with the 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 C1149 Infiniti Code

1. What is OBDII code C1149 Infiniti related to?

The code C1149 Infiniti refers to an issue with the Switch-Over Solenoid Valve Line (HSV) in the vehicle.

2. What are common symptoms of OBDII code C1149 in an Infiniti?

Common symptoms of OBDII code C1149 in an Infiniti may include rough idling, engine stalling, and poor acceleration.

3. What are possible causes of OBDII code C1149 in an Infiniti?

Possible causes of OBDII code C1149 in an Infiniti include a faulty switch-over solenoid valve, wiring issues, or a defective HSV line.

4. How can I diagnose the OBDII code C1149 in my Infiniti?

Diagnosing OBDII code C1149 in your Infiniti typically involves using a diagnostic scanner to read the code, inspecting the switch-over solenoid valve, checking the wiring for any damage, and testing the HSV line for proper functionality.

5. Can I drive my Infiniti with OBDII code C1149?

It is not recommended to drive your Infiniti with OBDII code C1149, as it can lead to further damage to the vehicle and potentially unsafe driving conditions.

6. How can I repair OBDII code C1149 in my Infiniti?

Repairing OBDII code C1149 in your Infiniti may involve replacing the switch-over solenoid valve, repairing any damaged wiring, or replacing the HSV line as needed.

7. Is OBDII code C1149 in an Infiniti a serious issue?

OBDII code C1149 in an Infiniti should be addressed promptly to prevent any further damage to the vehicle and ensure optimal performance.

8. Can a DIY enthusiast fix OBDII code C1149 in an Infiniti?

While some DIY enthusiasts may be able to diagnose and repair OBDII code C1149 in an Infiniti, it is recommended to seek professional help for accurate diagnosis and proper repair.

9. How much does it cost to repair OBDII code C1149 in an Infiniti?

The cost to repair OBDII code C1149 in an Infiniti can vary depending on the extent of the issue, parts needed, and labor costs. It is best to get a quote from a trusted mechanic or dealership.

10. How can I prevent OBDII code C1149 from occurring in my Infiniti?

To prevent OBDII code C1149 from occurring in your Infiniti, it is essential to perform regular maintenance checks, address any warning signs promptly, and follow the manufacturer's recommended service schedule.