AutoCodes – Generic – C2315

C2315 Code - HV System Malfunction

Quick Answer

The Transmission Control ECU receives a P position switch signal from the Power Management Control ECU (HV CPU) and activates the parking lock motor by controlling current, causing the parking lock mechanism to switch. Common causes include Faulty Power Management Control ECU, Power Management Control ECU harness is open or shorted, Power Management Control ECU 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: C2315 indicates HV System Malfunction.
Common causes: Common causes include Faulty Power Management Control ECU, Power Management Control ECU harness is open or shorted, Power Management Control ECU 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 6,746

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C2315 Description

The Transmission Control ECU receives a P position switch signal from the Power Management Control ECU (HV CPU) and activates the parking lock motor by controlling current, causing the parking lock mechanism to switch. When the Power Management Control ECU (HV CPU) detects a malfunction with the P position switch or P position signal, it sends an information signal to the transmission control ECU. After receiving this signal, the Transmission Control ECU outputs this Diagnostic Trouble Code (DTC).

OBDII Code C2315 - HV System Malfunction - AutoCodes.com — C2315 Code - HV System Malfunction

What does this mean?

What are the Possible Causes of the DTC C2315?

Faulty Power Management Control ECU
Power Management Control ECU harness is open or shorted
Power Management Control ECU circuit poor electrical connection

How to Fix the DTC C2315?

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 C2315 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 C2315 code?

Need more information on how to fix the C2315 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C2315 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C2315 Lexus — HV System Malfunction
C2315 Toyota — HV System 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 C2315 Code

1. What are common symptoms of OBDII code C2315 (HV System Malfunction)?

- Common symptoms include the hybrid vehicle system not functioning properly, decreased fuel efficiency, and a warning light on the dashboard.

2. What are the possible causes of OBDII code C2315?

- The code C2315 can be caused by issues with the hybrid battery, faulty sensors, wiring problems, or issues with the hybrid system control module.

3. How can I diagnose the cause of OBDII code C2315?

- To diagnose the cause of C2315, it is recommended to use an OBDII scanner to retrieve the specific fault codes, inspect the hybrid system components, and perform thorough electrical system checks.

4. Can I still drive my vehicle with OBDII code C2315 present?

- It is not recommended to drive the vehicle with OBDII code C2315 present, as it can lead to further damage to the hybrid system and potentially compromise your safety.

5. How can I repair OBDII code C2315?

- Repairing OBDII code C2315 involves diagnosing and fixing the underlying issue causing the HV System Malfunction. This may include replacing faulty components, repairing wiring issues, or resetting the system.

6. Is it safe to reset the OBDII code C2315 without repairing the issue?

- It is not recommended to simply reset the code without addressing the underlying problem, as it may lead to a recurring issue and potential safety hazards.

7. Can a DIY enthusiast fix OBDII code C2315 at home?

- Depending on the complexity of the issue causing C2315, DIY enthusiasts with knowledge of hybrid systems and access to tools may be able to diagnose and repair the problem at home.

8. How much does it typically cost to repair OBDII code C2315 at a mechanic or dealership?

- The cost of repairing OBDII code C2315 can vary widely depending on the specific issue, location, and labor rates. It is recommended to obtain quotes from different mechanics or dealerships.

9. Will OBDII code C2315 cause my vehicle to fail an emissions test?

- Yes, OBDII code C2315 can cause your vehicle to fail an emissions test, as it indicates a malfunction in the hybrid system that can affect emissions control.

10. How can I prevent OBDII code C2315 from recurring in the future?

- To prevent OBDII code C2315 from recurring, it is essential to address and repair the root cause of the HV System Malfunction, perform regular maintenance on the hybrid system, and follow manufacturer recommendations for servicing.