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Home >> Infiniti >> 2018 >> QX30 Essential, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Exterior Lighting System - Led Headlamp (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> P1240: Can Comm Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK CAN COMMUNICATION SYSTEM DIAGNOSIS 

    Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart .

    Is the inspection result normal?

    YES

    Replace front combination lamp LH. Refer to Removal and Installation .

    NO

    Repair or replace harness.

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