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Home >> Hyundai >> 2009 >> Tucson GLS, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTC Troubleshooting Procedures (2.0L) >> Troubleshooting for DTC >> P0112 Intake Air Temperature Sensor Circuit Low Input >> Component Inspection

Component Inspection

  1. Measure resistance between terminals 3 and 4 of the sensor connector (Component side).

    Specification 

    TEMPERATURE AND RESISTANCE SPECIFICATION

    Temp.(°C) Temp.(°F) Resistance (kΩ)
    -10 14 8.5 ~ 9.7
    0 32 5.4 ~ 6.1
    10 50 3.5 ~ 3.9
    20 68 2.3 ~ 2.5
    30 86 1.6 ~ 1.7
    80 176 Approx. 0.3
    Fig 1: Measuring Resistance Between Terminals 3 And 4 Of Sensor Connector (Component Side)
    G06206330Courtesy of HYUNDAI MOTOR AMERICA
  2. Is resistance within the specification?

    YES 

    • Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Check IATS for contamination, deterioration, or damage. Substitute with a known-good IATS and check for proper operation. If the problem is corrected, replace IATS and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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