LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Driver Assistance System (ADAS Control Unit) (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC U1508: Lost Comm(Side RDR L) >> ADAS Control Unit >> Diagnosis Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis Procedure

  1. CHECK DTC PRIORITY

    If DTC "U1508" is displayed with DTC "U1000", first diagnose the DTC "U1000".

    Is applicable DTC detected?

    YES 

    Perform diagnosis of applicable. Refer to DTC DESCRIPTION .

    NO 

    GO TO STEP 2  .

  2. CHECK SIDE RADAR HARNESS CONNECTOR

    1. Turn the ignition switch OFF.
    2. Check the terminals and connectors of the side radar LH for damage, bend and short (unit side and connector side).

    Is the inspection result normal?

    YES 

    Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to TROUBLE DIAGNOSIS FLOW CHART .

    NO 

    Repair the terminal or connector.