P11C3 Possible Causes
- Faulty intake air humidity sensor
- Intake air humidity sensor harness is open or shorted
- Poor electrical connection in the intake air humidity sensor circuit
How is code P11C3 repaired?
Start by checking the “possible causes” listed above. Visually inspect the corresponding cable harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Technical Notes
The intake air humidity sensor is part of the 8-pin mass air flow, humidity, BARO, and intake air temperature 1 and 2 sensors.
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 does not meet factory specifications.