FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

P0112

Tests 1 - 3:




Tests 4 - 6:





SYMPTOM
P0112 - INTAKE AIR TEMPERATURE SENSOR VOLTAGE TOO LOW

WHEN MONITORED
With the ignition ON and battery voltage greater than 10.4 volts.

SET CONDITION
The Intake Air Temperature (IAT) sensor circuit voltage at the PCM goes below 0.8 volt.

POSSIBLE CAUSES
- IAT sensor signal circuit shorted to ground
- IAT sensor signal circuit shorted to the sensor ground circuit
- IAT sensor
- Powertrain control module
- Wiring harness intermittent problem