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Home >> Infiniti >> 2021 >> QX50 Essential, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> ADAS Control Unit (DTC/Circuit Diagnosis) (2 Of 2) >> DTC U1522: Sonar Can 1 >> ADAS Control Unit >> With Direct Adaptive Steering System >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

DTC detection condition

(Trouble diagnosis content)

[Malfunction type]

U1522

00

SONAR CAN COMMUNICATION 1

(Sonar CAN communication 1)

--

Diagnosis condition

  • When engine is running
  • When Backup Collision Intervention system is ON

Signal (terminal)

ITS communication signal

Threshold

ADAS control unit detects an error signal that is received from sonar control unit via ITS communication

Diagnosis delay time

1 second or less