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

P1193

Tests 1 - 3:




Tests 4 - 7:




SYMPTOM
P1193-INLET AIR TEMP SENSOR VOLTAGE HIGH

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

SET CONDITION
The Inlet Air Temperature (IAT) sensor circuit voltage at the PCM goes above 4.9 volts.

POSSIBLE CAUSES
- Intermittent Condition
- IAT Sensor Signal Circuit Shorted To Battery Voltage
- IAT Sensor Internal Failure
- IAT Sensor Signal Circuit Open
- Sensor Ground Circuit Open
- PCM