AutoCodes – Generic – C2316

C2316 Code - Front Right Inlet Valve Malfunction

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: C2316 indicates Front Right Inlet Valve Malfunction.
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 1,147

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 C2316 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 C2316 - Front Right Inlet Valve Malfunction - AutoCodes.com — C2316 Code - Front Right Inlet Valve Malfunction

What does this mean?

What are the Possible Causes of the DTC C2316?

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 C2316?

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 C2316 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 C2316 code?

Need more information on how to fix the C2316 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C2316 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C2316 Hyundai — Front Right Inlet Valve Malfunction
C2316 KIA — Front Right Inlet Valve Malfunction

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 C2316 Code

1. What does the OBDII code C2316 mean?

C2316 indicates a malfunction in the front right inlet valve of the vehicle's ABS or braking system, affecting its ability to regulate brake pressure properly.

2. What are the symptoms of code C2316?

Common symptoms include the ABS warning light being illuminated, reduced braking performance, and possible pulsing or uneven braking during stops.

3. What causes the C2316 code to appear?

The primary causes can include a faulty front right inlet valve, damaged or corroded wiring, a malfunctioning ABS control module, or hydraulic issues within the braking system.

4. Can I drive with the C2316 code active?

While the vehicle may still be drivable, it is not recommended as the ABS system may not function properly, increasing the risk of reduced braking performance in emergency situations.

5. How is the C2316 code diagnosed?

A technician will use a scan tool to confirm the code, inspect the wiring and connectors around the ABS module, test the inlet valve operation, and check for hydraulic issues or other related faults.

6. What repairs can fix the C2316 code?

Repairs may include replacing the front right inlet valve, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the ABS control module if necessary.

7. How much does it cost to fix the C2316 code?

The repair cost can vary widely depending on the specific issue, but replacing an inlet valve typically costs between $200 and $600, including parts and labor.

8. Can a dirty or corroded connection cause the C2316 code?

Yes, dirty or corroded electrical connections can disrupt communication or power to the inlet valve, triggering the C2316 code.

9. Does the C2316 code always indicate a problem with the valve itself?

No, the issue could also stem from wiring problems, a failing ABS control module, or other related components in the braking system.

10. How can I prevent the C2316 code from occurring?

Regular maintenance of the ABS system, including inspecting wiring and connectors for damage or corrosion and addressing brake fluid leaks promptly, can help prevent this issue.