P11C4 - Intake Air Humidity Sensor Circuit Erratic

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

P11C4 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 P11C4

    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.

P11C4 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 P11C4 code

    Labor: 1.0

    The cost of diagnosing the P11C4 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.

P11C4 Possible Symptoms

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

P11C4 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.
OBDII Code P11C4 - Intake Air Humidity Sensor Circuit Erratic - Engine-Codes.com

P11C4 More Information

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P11C4 Information for specific makes

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