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Home >> Infiniti >> 2022 >> QX55 Essential >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> ADAS Control Unit (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> ICC/ADAS (ADAS Control Unit) >> DTC U1520-00: 4WD Can 3 >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

DTC detection condition

U1520

00

4WD CAN CIRC 3

(4WD CAN CIRCUIT 3)

Diagnosis condition

When engine is running

Signal (terminal)

CAN communication signal

Threshold

ADAS control unit detects an error signal that is received from transfer control unit via CAN communication

Diagnosis delay time

1 second or less

NOTE: If DTC "U1520-00" is detected along with DTC "U1000-01", first diagnose the DTC "U1000-01". Refer to DTC Description .