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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Engine Control System Diagnosis - 2.0L (1 Of 3) (Except HEV)) >> DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control >> Component Inspection

Component Inspection

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■ ECTS Inspection 

  1. IG "OFF". Disconnect ECTS connector.
  2. Measure the resistance between signal terminal and ground terminal of ECTS connector. (Component side)

    Specification: 

    Temp.(°C) Temp.(°F) Resistance (kΩ) Temp.(°C) Temp.(°F) Resistance (kΩ)
    -40 -40 48.14 20 68 1.15
    -20 -4 14.13 ~ 16.83 40 104 0.59
    0 32 5.79 60 140 0.32
    10 50 2.31 ~ 2.59      
  3. Is the measured resistance within specification?

    YES 

    • Clear DTC and Test-drive under the enable conditions. After the road test, if this DTC is set, recheck resistance. If not, it is intermittent fault. Go to "VERIFICATION OF VEHICLE REPAIR ",

    NO 

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