AutoCodes – Subaru – C0120 Subaru

C0120 Subaru Code - Front Inlet Valve Left

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Front Inlet Solenoid Valve Left. Common causes include Faulty Front Inlet Solenoid Valve Left, Front Inlet Solenoid Valve Left harness is open or shorted, Front Inlet Solenoid Valve Left 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: C0120 Subaru indicates Front Inlet Valve Left.
Common causes: Common causes include Faulty Front Inlet Solenoid Valve Left, Front Inlet Solenoid Valve Left harness is open or shorted, Front Inlet Solenoid Valve Left 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 1,541

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 May 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0120 Subaru Description

The Anti-Lock Brake System (ABS) Module monitors the Front Inlet Solenoid Valve Left. The ABS Module sets the OBDII code when the Front Inlet Solenoid Valve Left is not to factory specifications.

OBDII Code C0120 Subaru - Front Inlet Valve Left - AutoCodes.com — C0120 Subaru Code - Front Inlet Valve Left

What does this mean?

What are the Possible Causes of the DTC C0120 Subaru?

Faulty Front Inlet Solenoid Valve Left
Front Inlet Solenoid Valve Left harness is open or shorted
Front Inlet Solenoid Valve Left circuit poor electrical connection

How to Fix the DTC C0120 Subaru?

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 C0120 Subaru 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 C0120 Subaru code?

Need more information on how to fix the C0120 Subaru code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0120 Subaru code diagnosed by a professional: Find a repair shop in your area

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 C0120 Subaru Code

1. What are the common symptoms of OBDII code C0120 in a Subaru related to the Front Inlet Valve Left?

The common symptoms include uneven braking, reduced braking performance, and potential illumination of the ABS warning light.

2. What are the possible causes of OBDII code C0120 related to the Front Inlet Valve Left in a Subaru?

Possible causes include a faulty front inlet valve left, damaged wiring or connectors, or issues with the ABS control module.

3. How can I diagnose the Front Inlet Valve Left issue causing OBDII code C0120 in my Subaru?

Diagnosis typically involves using a professional OBDII scanner to read and interpret the code, along with conducting a visual inspection of the ABS components and wiring for any visible damage.

4. What are some recommended repair tips for fixing OBDII code C0120 in a Subaru related to the Front Inlet Valve Left?

Repair tips may include checking and repairing any damaged wiring or connectors, testing and potentially replacing the front inlet valve left, and ensuring proper connection to the ABS control module.

5. Can I drive my Subaru with OBDII code C0120 related to the Front Inlet Valve Left without immediate repair?

It is not recommended to drive the vehicle with this issue as it may affect the braking system's performance and safety. It is advised to address the problem promptly.

6. Is it possible to clear the OBDII code C0120 related to the Front Inlet Valve Left in a Subaru without fixing the underlying issue?

Clearing the code without addressing the root cause may temporarily turn off the warning light, but the issue will likely reoccur, affecting the vehicle's braking system.

7. How much does it typically cost to repair OBDII code C0120 in a Subaru related to the Front Inlet Valve Left?

The cost of repair can vary depending on the specific issue, parts needed, and labor rates, but it is recommended to consult a professional mechanic for an accurate estimate.

8. Can a DIY enthusiast with automotive knowledge fix OBDII code C0120 in a Subaru related to the Front Inlet Valve Left?

While some basic troubleshooting and repairs may be possible for DIY enthusiasts, diagnosing and repairing ABS system issues like this code may require specialized tools and expertise best handled by a professional.

9. Are there any recalls or technical service bulletins related to OBDII code C0120 in Subaru vehicles?

It is recommended to check with Subaru dealerships or online resources for any recalls or technical service bulletins related to OBDII code C0120 and the Front Inlet Valve Left issue.

10. How can I prevent OBDII code C0120 related to the Front Inlet Valve Left from occurring in my Subaru in the future?

Regular maintenance, such as inspecting and servicing the ABS system components, checking for any signs of wear or damage, and addressing any issues promptly, can help prevent this code from occurring.