AutoCodes – Generic – C118C

C118C Code - EV/HEV System

Quick Answer

The Anti-Lock Brake System (ABS) Actuator And Electric Unit (Control Unit) monitors the Vehicle Charging Module (VCM). Common causes include Faulty Vehicle Charging Module (VCM), Vehicle Charging Module (VCM) harness is open or shorted, Vehicle Charging Module (VCM) 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: C118C indicates EV/HEV System.
Common causes: Common causes include Faulty Vehicle Charging Module (VCM), Vehicle Charging Module (VCM) harness is open or shorted, Vehicle Charging Module (VCM) 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 7,842

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 Aug 20, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C118C Description

The Anti-Lock Brake System (ABS) Actuator And Electric Unit (Control Unit) monitors the Vehicle Charging Module (VCM). The ABS Actuator And Electric Unit sets the OBDII code when the VCM is not to factory specifications.

OBDII Code C118C - EV/HEV System - AutoCodes.com — C118C Code - EV/HEV System

What does this mean?

What are the Possible Causes of the DTC C118C?

Faulty Vehicle Charging Module (VCM)
Vehicle Charging Module (VCM) harness is open or shorted
Vehicle Charging Module (VCM) circuit poor electrical connection
Faulty Anti-Lock Brake System (ABS) Actuator And Electric Unit (Control Unit)

How to Fix the DTC C118C?

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 C118C 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 C118C code?

Need more information on how to fix the C118C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C118C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C118C Infiniti — EV/HEV System
C118C Nissan — EV/HEV System

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 C118C Code

1. What are the common symptoms of OBDII code C118C related to the EV/HEV system?

- Common symptoms include reduced hybrid system performance, illuminated warning lights on the dashboard, and potential drivability issues.

2. What are some possible causes of OBDII code C118C in the EV/HEV system?

- Causes may include faults in the high-voltage battery system, issues with the hybrid powertrain control module, wiring problems, or sensor malfunctions.

3. How can I diagnose OBDII code C118C in the EV/HEV system?

- Diagnosis typically involves using a diagnostic scan tool to retrieve the specific trouble code, conducting a thorough inspection of the hybrid system components, and testing relevant sensors and wiring for faults.

4. Can a DIY enthusiast repair OBDII code C118C related to the EV/HEV system?

- Due to the complexity of hybrid systems and high-voltage components, it is recommended to seek assistance from a qualified technician or specialized hybrid repair shop for proper diagnosis and repair.

5. Are there any simple repair tips for addressing OBDII code C118C in the EV/HEV system?

- Some basic tips include checking for loose or damaged wiring connections, ensuring the high-voltage battery has sufficient charge, and verifying the integrity of related sensors and control modules.

6. What are the potential risks of ignoring OBDII code C118C in the EV/HEV system?

- Ignoring this code can lead to further damage to the hybrid system components, reduced fuel efficiency, and potential safety hazards due to compromised system performance.

7. Is it safe to drive my vehicle with OBDII code C118C related to the EV/HEV system?

- It is not recommended to drive the vehicle with this code present, as it indicates a potential issue with the hybrid system that can impact performance and safety.

8. How much does it typically cost to repair OBDII code C118C in the EV/HEV system?

- Repair costs can vary depending on the specific cause of the code, but it is advisable to budget for potentially expensive repairs due to the specialized nature of hybrid systems.

9. Can OBDII code C118C in the EV/HEV system affect the vehicle's emissions?

- Yes, unresolved issues indicated by this code can impact emissions control systems in the vehicle, potentially leading to increased emissions and environmental harm.

10. Will resetting the OBDII code C118C in the EV/HEV system make the problem go away?

- Simply resetting the code without addressing the underlying issue will not solve the problem, as the code will likely reappear once the system detects the fault again. It is important to diagnose and repair the root cause of the code.