P11C2 GMC - Intake Air Humidity Sensor Circuit Low Voltage

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

P11C2 GMC 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 do I fix code P11C2 GMC?

Check 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.

Cost of diagnosing the P11C2 GMC code

Labor: 1.0

The cost of diagnosing the P11C2 GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

P11C2 GMC Description

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.
OBDII Code P11c2 Gmc - Intake Air Humidity Sensor Circuit Low Voltage - AutoCodes.com

More Information

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