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Home >> Genesis >> 2019 >> G70 3.3T Dynamic, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Engine Control System Diagnosis - 2.0L (1 Of 4)) >> DTC P0128-00: Thermostat (Temp. Below Thermostat Regulating Temp.) >> Component Inspection >> Thermostat Inspection

Thermostat Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Remove the thermostat and check the following items:
    1. Stuck or damaged
    2. Verify the temperature at which the valve is open
    • Valve opening temperature: 82°C (180°F)
    • Full opening temperature: 95°C (203°F)
  2. Is the thermostat normal?

    YES 

    • Clear DTC and Test-drive under Prerequisite Condition above-mentioned. After the test, If this DTC is set, recheck it thoroughly. If not, it is intermittent fault, go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Substitute with a known-good Thermostat and check for proper operation. If the problem is corrected, Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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