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Home >> Infiniti >> 2022 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (5 Of 5) >> Engine (ECM) >> U1044 Eng Comm Circuit >> DTC Description >> DTC Detection Logic

DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

U1044

ENG COMM CIRCUIT

(Engine communication circuit)

Diagnosis condition

Ignition switch ON

Signal (terminal)

LIN communication signal

Threshold

A signal voltage of LIN communication between ECM and alternator is excessively low or excessively high.

Diagnosis delay time

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