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Home >> Hyundai >> 2009 >> Elantra GLS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures >> DTC P0112 Intake Air Temperature Sensor1 Circuit Low Input >> Component Inspection
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Component Inspection

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

    SPECIFICATION 

    DTC P0112 RESISTANCE AND TEMPERATURE SPECIFICATIONS

    Temp. (°C) Temp. (°F) Resistance (Ω)
    -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
    G05363790Courtesy of HYUNDAI MOTOR CO.
  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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