DTC P0111 Audi
Intake Air Temperature Sensor Circuit Low Input
Intake Air Temperature Sensor Circuit Low Input
Description
Key on or engine running, the temperature must beat least 185-degrees (F) and all electrical equipment (A C, lights, etc) must be off; and the ECM detected the IAT sensor signal was less than the self-test minimum. This is a thermistor-type sensor with a variable resistance that changes when exposed to different temperatures. This means: the higher the temperature, the lower the resistance value.
Cause and Solution
IAT sensor signal circuit is grounded (check wiring connector)
Resistance value between sockets 33 and 36 out of range
IAT sensor has an open circuit
IAT sensor is damaged or it has failed
Video Guide
Diagnostic Info
- DTC Code: P0111
- Brand: Audi