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C0118 Subaru Code - Faulty G Sensor Output Voltage

Quick Answer

The C0118 diagnostic trouble code (DTC) for Subaru vehicles indicates a fault in the G sensor output voltage. Common causes include A malfunctioning G sensor, Damaged wiring or connectors related to the G sensor, Corrosion or contamination affecting the sensor's readings. 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 Subaru indicates Faulty G Sensor Output Voltage.
Common causes
Common causes include A malfunctioning G sensor, Damaged wiring or connectors related to the G sensor, Corrosion or contamination affecting the sensor's readings.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code C0118 Subaru Description

The C0118 diagnostic trouble code (DTC) for Subaru vehicles indicates a fault in the G sensor output voltage. The G sensor, also known as the lateral acceleration sensor, is a crucial component of the vehicle's stability control system. It measures the lateral acceleration of the vehicle during cornering or sudden maneuvers and sends this data to the vehicle's electronic control unit (ECU) to help adjust the vehicle's stability and traction control systems.

OBDII Code C0118 Subaru - Faulty G Sensor Output Voltage
C0118 Subaru Code - Faulty G Sensor Output Voltage

Common Causes of C0118 Subaru

  1. A malfunctioning G sensor.
  2. Damaged wiring or connectors related to the G sensor.
  3. Corrosion or contamination affecting the sensor's readings.
  4. Issues with the ECU receiving and interpreting sensor data.
  5. Impact or physical damage to the sensor from road debris or accidents.

Symptoms of C0118 Subaru

  1. Illumination of the stability control or traction control warning light on the dashboard.
  2. Increased difficulty in maintaining control of the vehicle during cornering or sudden maneuvers.
  3. Inconsistent or jerky braking behavior, especially on slippery surfaces.
  4. ABS (anti-lock braking system) activation under normal driving conditions.
  5. Poor overall stability and handling of the vehicle.

How to Fix C0118 Subaru

  1. Begin by diagnosing the specific cause of the faulty G sensor output voltage using a diagnostic scanner.
  2. Inspect the G sensor, wiring, and connectors for any visible damage or corrosion. Replace any damaged components as needed.
  3. Test the G sensor output voltage using a multimeter to ensure it is within the manufacturer's specified range.
  4. If the sensor itself is faulty, replace it with a new, OEM (original equipment manufacturer) sensor.
  5. Clear the DTC from the vehicle's ECU memory and perform a road test to verify that the issue has been resolved.

Cost to Fix C0118 Subaru

The typical repair costs for addressing a faulty G sensor output voltage on a Subaru vehicle can range from $200 to $500, including parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more precise estimate before proceeding with the repair.

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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 Subaru Code

1. What are the common symptoms of OBDII code C0118 in a Subaru related to a faulty G sensor output voltage?

The common symptoms of OBDII code C0118 in a Subaru include issues with the vehicle's stability control system, ABS system, and potentially the transmission shifting erratically.

2. What are the possible causes of OBDII code C0118 indicating a faulty G sensor output voltage in a Subaru?

The possible causes of OBDII code C0118 in a Subaru are a malfunctioning G sensor, damaged wiring or connectors in the G sensor circuit, or a problem with the G sensor calibration.

3. How can I diagnose the issue related to OBDII code C0118 in my Subaru if I suspect a faulty G sensor output voltage?

To diagnose the issue related to OBDII code C0118 in your Subaru, you can use a scan tool to read the code, inspect the G sensor and its wiring for any visible damage, and perform a calibration check on the G sensor.

4. Can I continue driving my Subaru with OBDII code C0118 indicating a faulty G sensor output voltage?

It is not recommended to continue driving your Subaru with OBDII code C0118 present, as it can affect the vehicle's stability control system and ABS functionality, potentially compromising safety.

5. How do I repair OBDII code C0118 in a Subaru due to a faulty G sensor output voltage?

To repair OBDII code C0118 in a Subaru, you may need to replace the faulty G sensor, repair any damaged wiring or connectors in the G sensor circuit, and recalibrate the G sensor to ensure proper functionality.

6. Can a DIY enthusiast fix OBDII code C0118 related to a faulty G sensor output voltage in a Subaru?

While some DIY enthusiasts may be able to diagnose and repair OBDII code C0118 in a Subaru, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair to ensure safety and effectiveness.

7. Are there any specific maintenance tips to prevent OBDII code C0118 from occurring in a Subaru?

Regularly inspecting the G sensor and its wiring for any signs of wear or damage, following the manufacturer's maintenance schedule, and addressing any stability control or ABS issues promptly can help prevent OBDII code C0118 in a Subaru.

8. How much should I expect to pay for repairing OBDII code C0118 related to a faulty G sensor output voltage in a Subaru?

The cost of repairing OBDII code C0118 in a Subaru can vary depending on the extent of the issue, the parts needed for replacement, and the labor costs. It is advisable to obtain quotes from different mechanics for an accurate estimate.

9. Is it possible for OBDII code C0118 in a Subaru to reoccur after repair due to a faulty G sensor output voltage?

If the root cause of OBDII code C0118, such as a malfunctioning G sensor or wiring issue, is not properly addressed during repair, there is a possibility for the code to reoccur. Ensure thorough diagnosis and repair to prevent this from happening.

10. Can OBDII code C0118 indicating a faulty G sensor output voltage in a Subaru cause other issues in the vehicle?

Yes, OBDII code C0118 in a Subaru can cause issues with the vehicle's stability control system, ABS system, and transmission operation, potentially affecting overall drivability and safety. Addressing the code promptly is crucial to prevent further complications.

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