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Infiniti
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2004
›
M45
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Repair and Diagnosis
›
Engine Performance
›
Engine Control System
›
DTC P0128: Thermostat Function
›
Diagnostic Procedure
›
1. Check Engine Coolant Temperature Sensor
1. Check Engine Coolant Temperature Sensor
Refer to
Component Inspection
.
OK or NG
OK:
INSPECTION END
NG: Replace engine coolant temperature sensor.