OBD Guide

C0118

Faulty G Sensor Output Voltage

C0118 is an OBD-II diagnostic trouble code meaning: Faulty G Sensor Output Voltage. Common causes: wiring harness damage, oxidation of contacts. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Airbag light is on
  • Incorrect operation of the passive safety system
  • Errors in other systems related to the G sensor

Causes

  • Wiring harness damage
  • Oxidation of contacts
  • G sensor malfunction
  • Software failure in the control unit

How to Fix

  1. Check the integrity of the wiring harness
  2. Clean sensor contacts
  3. Check sensor output voltage
  4. Replace sensor if necessary
  5. Reflash the control unit if there is a software failure

Related codes

Error C0118 by Vehicle Brand

FAQ

What does the C0118 code mean?

C0118 is an OBD-II diagnostic trouble code that indicates: Faulty G Sensor Output Voltage

What causes a C0118 error code?

The most common causes of C0118 include: Wiring harness damage; Oxidation of contacts; G sensor malfunction; Software failure in the control unit.

How do I fix a C0118 diagnostic trouble code?

To fix C0118: Check the integrity of the wiring harness. Clean sensor contacts. Check sensor output voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0118?

Limited driving only, diagnose soon

How much does it cost to fix C0118?

The estimated repair cost for C0118 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat