DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0125

ECT SENSOR

(Insufficient coolant temperature for closed loop fuel control)

Diagnosis condition

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Signal (terminal)

Engine coolant temperature sensor signal

Threshold

• Voltage sent to ECM from the engine coolant temperature sensor is not practical, even when some time has passed after starting the engine
• Engine coolant temperature sensor is insufficient for closed loop fuel control

Diagnosis delay time

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