AutoCodes – Generic – C0118

C0118 Code - Faulty G Sensor Output Voltage

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the G Sensor. Common causes include Faulty G Sensor, G Sensor harness is open or shorted, G Sensor 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: C0118 indicates Faulty G Sensor Output Voltage.
Common causes: Common causes include Faulty G Sensor, G Sensor harness is open or shorted, G Sensor 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 3,530

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 C0118 Description

The Anti-Lock Brake System (ABS) Module monitors the G Sensor. The ABS Module sets the OBDII code when the G Sensor is not to factory specifications.

OBDII Code C0118 - Faulty G Sensor Output Voltage - AutoCodes.com — C0118 Code - Faulty G Sensor Output Voltage

What does this mean?

What are the Possible Causes of the DTC C0118?

Faulty G Sensor
G Sensor harness is open or shorted
G Sensor circuit poor electrical connection

How to Fix the DTC C0118?

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 C0118 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 C0118 code?

Need more information on how to fix the C0118 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0118 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C0118 Subaru — Faulty G Sensor Output Voltage

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 C0118 Code

1. What are the common symptoms of OBDII code C0118 (Faulty G Sensor Output Voltage)?

The common symptoms of code C0118 include problems with the vehicle's stability control system, traction control system, and potential issues with the ABS system.

2. What are the possible causes of OBDII code C0118?

The code C0118 typically indicates a fault in the G sensor output voltage, which may be caused by a malfunctioning G sensor, damaged wiring, or a faulty connection.

3. How can I diagnose the issue related to OBDII code C0118?

Diagnosing code C0118 involves using a diagnostic scanner to read the code and then inspecting the G sensor, wiring, and connections for any visible damage or issues.

4. Can I drive my vehicle with OBDII code C0118?

It is not recommended to drive your vehicle with an active OBDII code C0118, as it can affect the vehicle's stability control and traction control systems, potentially compromising safety.

5. How can I repair OBDII code C0118?

To repair code C0118, you may need to replace the faulty G sensor, repair any damaged wiring, or ensure proper connections are in place as per the manufacturer's recommendations.

6. Is it possible to reset OBDII code C0118 without fixing the underlying issue?

While you can clear the code using a diagnostic scanner, it is crucial to address the underlying issue causing code C0118 to prevent it from reoccurring and ensure the vehicle's safety systems function properly.

7. Are there any DIY tips for fixing OBDII code C0118?

If you have automotive repair experience, you may attempt to inspect the G sensor, wiring, and connections yourself. However, for accurate diagnosis and repair, it is recommended to consult a professional mechanic.

8. Will OBDII code C0118 cause my vehicle to fail an emissions test?

Code C0118 is related to the vehicle's stability control system and does not directly impact emissions. However, it is essential to address the issue to ensure the overall functionality and safety of the vehicle.

9. How much does it typically cost to repair OBDII code C0118?

The cost of repairing code C0118 can vary depending on the specific cause of the issue, the extent of the damage, and labor rates. It is advisable to obtain a diagnosis from a qualified mechanic for an accurate cost estimate.

10. Can OBDII code C0118 cause other problems in my vehicle?

Code C0118 primarily affects the stability control system and traction control system. Ignoring or neglecting this issue may lead to further safety concerns and potential problems with the ABS system, so it is essential to address it promptly.