AutoCodes – Generic – C2370

C2370 Code - TCS Valve Secondary USV2 Error

Quick Answer

The Hydraulic Electronic Control Unit (HECU) is composed of an ECU (Electronic Control Unit) and an HCU (Hydraulic Control Unit), so the HECU hardware includes all solenoid valves inside the unit as well as the ECU. Common causes include Faulty Hydraulic Electronic Control Unit (HECU), Hydraulic Electronic Control Unit (HECU) harness is open or shorted, Hydraulic Electronic Control Unit (HECU) 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: C2370 indicates TCS Valve Secondary USV2 Error.
Common causes: Common causes include Faulty Hydraulic Electronic Control Unit (HECU), Hydraulic Electronic Control Unit (HECU) harness is open or shorted, Hydraulic Electronic Control Unit (HECU) 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 1,535

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C2370 Description

The Hydraulic Electronic Control Unit (HECU) is composed of an ECU (Electronic Control Unit) and an HCU (Hydraulic Control Unit), so the HECU hardware includes all solenoid valves inside the unit as well as the ECU. The solenoid valves are switched to ON, OFF by HECU when the Anti-Lock Brake System (ABS) is activated. The solenoid valves function is to increase, decrease or maintain the hydraulic pressure supplied to a wheel cylinder. The HECU sets the OBDII code when the solenoid valves are not to function to factory specifications.

OBDII Code C2370 - TCS Valve Secondary USV2 Error - AutoCodes.com — C2370 Code - TCS Valve Secondary USV2 Error

What does this mean?

What are the Possible Causes of the DTC C2370?

Faulty Hydraulic Electronic Control Unit (HECU)
Hydraulic Electronic Control Unit (HECU) harness is open or shorted
Hydraulic Electronic Control Unit (HECU) circuit poor electrical connection

How to Fix the DTC C2370?

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 C2370 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 C2370 code?

Need more information on how to fix the C2370 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C2370 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C2370 Hyundai — TCS Valve Secondary USV2 Error
C2370 KIA — TCS Valve Secondary USV2 Error

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 C2370 Code

1. What are the common symptoms of OBDII code C2370 (TCS Valve Secondary USV2 Error)?

Symptoms may include illuminated warning lights on the dashboard, decreased traction control system functionality, and potential difficulty driving the vehicle.

2. What can cause the OBDII code C2370 to trigger?

Possible causes of this code include a malfunctioning TCS valve secondary USV2, wiring issues, or a faulty control module.

3. How can I diagnose the TCS Valve Secondary USV2 Error?

Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the TCS valve secondary USV2 and related components for damage, and testing the wiring for continuity.

4. Can I continue driving my vehicle with the TCS Valve Secondary USV2 Error code?

It is not recommended to continue driving the vehicle with this error code, as it can affect the traction control system's performance and compromise safety.

5. How can I repair the TCS Valve Secondary USV2 Error?

Repair options may include replacing the TCS valve secondary USV2, repairing any damaged wiring, or reprogramming the control module to address the issue.

6. Can a DIY enthusiast fix the TCS Valve Secondary USV2 Error at home?

Depending on your level of automotive expertise, you may be able to address this issue at home by following repair guides and using the necessary tools.

7. Will resetting the error code make it go away permanently?

Resetting the error code may temporarily clear the warning lights, but if the underlying issue is not resolved, the code is likely to reappear.

8. Is the TCS Valve Secondary USV2 Error a common problem in certain vehicle models?

This error code may be more prevalent in specific vehicle models equipped with traction control systems, but it can occur in various makes and models.

9. How much does it typically cost to repair the TCS Valve Secondary USV2 Error at a mechanic or dealership?

Repair costs can vary depending on the extent of the issue, parts needed, labor rates, and location, but it is advisable to obtain multiple quotes for comparison.

10. Can the TCS Valve Secondary USV2 Error be related to other system malfunctions in the vehicle?

While the error code specifically relates to the TCS valve secondary USV2, it is possible for related issues to impact other systems in the vehicle, highlighting the importance of prompt diagnosis and repair.