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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Control System (DTC/Circuit Diagnosis) (5.6L) (1 Of 6)) >> DTC/Circuit Diagnosis >> DTC P0116: Engine Coolant Temperature Sensor 1 >> DTC Description >> DTC Detection Logic

DTC Detection Logic

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DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0116

ECT SEN/CIRC

[Engine coolant temperature (ECT) sensor 1 circuit range/performance]

Diagnosis condition

Engine is started with its cold state

Signal (terminal)

Engine coolant temperature sensor 1 signal

Threshold

  • The comparison result of signals transmitted to ECM from each temperature sensor (IAT sensor, ECT sensor 1, FTT sensor, and EOT sensor) shows that the voltage signal of the ECT sensor 1 is higher/lower than that of other temperature sensors
  • Engine coolant temperature signal from engine coolant temperature sensor does not fluctuate, even when some time has passed after starting the engine with pre-warming up condition.

Diagnosis delay time

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