Engine-Codes - Generic - P11C3

P11C3 - Intake Air Humidity Sensor Circuit High Voltage

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P11C3 Possible Causes

  • Faulty Intake Air Humidity Sensor
  • Intake Air Humidity Sensor harness is open or shorted
  • Intake Air Humidity Sensor circuit poor electrical connection

How is the P11C3 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

The Intake Air Humidity Sensor is part of the 8-Pin Mass Air Flow, Humidity, BARO and Intake Air Temperature 1 and 2 Sensor.

What is the cost to diagnose the P11C3 code

Labor: 1.0

The cost to diagnose the P11C3 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P11C3 Meaning

The Powertrain Control Module (PCM) monitors the Intake Air Humidity Sensor signal. The PCM sets the OBDII code when the Intake Air Humidity Sensor is not to factory specifications.

More Information

Need more information on how to fix the P11C3 code?
Get Access to Factory Service Manuals

Information for specific makes

  • P11C3 CHEVROLET Intake Air Humidity Sensor Circuit High Voltage
  • P11C3 GMC Intake Air Humidity Sensor Circuit High Voltage

Need more help?

Get the P11c3 code diagnosed by a professional: Find a repair shop in your area