SERVICE MANUAL
  Applies to: Hyundai Coupe/Tiburon 1998-2000
GROUP
Fuel System MFI Control System
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CIRCUIT DIAGRAM 
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DTC - P0112, P0113 (IAT SENSOR) 
TROUBLESHOOTING HINTS

Input from intake air temperature sensor is below 0.1 V or above 4.8V when engine is in a full warm-up condition.

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HARNESS INSPECTION PROCEDURES 
SENSOR INSPECTION
  1. Using the voltmeter, measure the sensor voltage.

  1. Measure the voltage between the IAT sensor terminal 1 and 2.

    |
    		 Temperature °C(°F)
    		 Output voltage (V)
    IG. SW. ON
    		 0 (32)
    		 3.3-3.7 V
    20 (68)
    		 2.4-2.8 V
    40 (104)
    		 1.6-2.0 V
    80 (176)
    		 0.5-0.9 V
  1. If the voltage deviates from the standard value, replace the intake air temperature sensor assembly

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INTAKE AIR TEMPERATURE (IAT) SENSOR 

The intake air temperature sensor (IAT Sensor), located on the air cleaner, is a resistor-based sensor for detecting the intake air temperature. According to the intake air temperature information from the sensor, the ECM provides necessary fuel injection amount control.