AutoCodes – Nissan – C1149 Nissan

C1149 Nissan 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 Nissan 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 1,708

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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

What does this mean?

What are the Possible Causes of the DTC C1149 Nissan?

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 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 C1149 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 C1149 Nissan code?

Need more information on how to fix the C1149 Nissan code? Get Access to Factory Service Manuals

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 Nissan Code

1. What are the common symptoms of OBDII code C1149 in a Nissan related to the Switch-Over Solenoid Valve Line HSV?

The common symptoms include issues with the vehicle's transmission, such as harsh shifting, difficulty changing gears, or the transmission getting stuck in a particular gear.

2. What could cause OBDII code C1149 in a Nissan to trigger?

The code C1149 is typically triggered by a malfunction in the Switch-Over Solenoid Valve Line HSV, which can be caused by electrical faults, wiring issues, or a faulty solenoid valve.

3. How serious is OBDII code C1149 in a Nissan?

While the symptoms associated with this code can affect the drivability of the vehicle, it is not usually considered a critical issue. However, it is still recommended to address the problem promptly to avoid further transmission-related issues.

4. Can I continue driving my Nissan with OBDII code C1149 present?

It is not recommended to drive the vehicle with the code C1149 present, as it can lead to further damage to the transmission system. It's best to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose the cause of OBDII code C1149 in my Nissan?

Diagnosing the cause of code C1149 usually involves using a diagnostic scanner to retrieve the code, inspecting the wiring and connections related to the Switch-Over Solenoid Valve Line HSV, and testing the solenoid valve itself for proper function.

6. Is it possible to repair OBDII code C1149 in a Nissan by myself?

While some DIY enthusiasts may attempt to address this issue, it is recommended to have a qualified mechanic diagnose and repair the problem to ensure proper resolution and prevent further complications.

7. What are the typical repair options for OBDII code C1149 in a Nissan?

Repair options may include replacing the faulty solenoid valve, repairing or replacing damaged wiring or connectors, and clearing the code from the vehicle's computer system.

8. How much does it cost to fix OBDII code C1149 in a Nissan?

The cost of fixing OBDII code C1149 can vary depending on the root cause of the issue, the extent of the repairs needed, and the labor rates of the repair shop. It is advisable to obtain multiple quotes from different mechanics for an accurate estimate.

9. Can OBDII code C1149 in a Nissan cause other problems if left untreated?

If left untreated, OBDII code C1149 can potentially lead to more severe transmission issues, affecting the overall performance and drivability of the vehicle. It's best to address the problem promptly to avoid further complications.

10. How long does it take to repair OBDII code C1149 in a Nissan?

The repair time for OBDII code C1149 can vary depending on the specific cause of the issue and the complexity of the repairs needed. It is advisable to consult with a mechanic to get a better idea of the repair timeline for your specific situation.