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Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 58 (Driver Assistance System - Lane Departure Warning & Lane Departure Prevention (LDW & LDP) (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> Power Supply And Ground Circuit >> Lane Camera Unit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX50. However, it is still accessible from the selected car via links, so may be relevant.

  1. FUSE INSPECTION

    Check that the following fuses are not fusing.

    Signal name Connection position Fuse No. Capacity
    Ignition power supply FUSE BLOCK (J/B) 3 10 A

    Is the fuse fusing?

    YES 

    Replace the blown fuse after repairing the affected circuit.

    NO 

    GO TO STEP 2. 

  2. CHECK POWER SUPPLY CIRCUIT

    Check voltage between the lane camera unit harness connector and ground.

    Terminals Condition Voltage
    (Approx.)
    (+) (-)
    Lane camera unit Ground Ignition switch
    Connector Terminal
    R10 7 OFF 0 V
    ON Battery voltage

    Is the measurement value normal?

    YES 

    GO TO STEP 3  .

    NO 

    Check harness between lane camera unit and fuse.

  3. CHECK GROUND CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect the lane camera unit connector.
    3. Check continuity between the lane camera unit harness connectors and ground.
    Lane camera unit Ground Continuity
    Connector Terminal
    R10 1 Existed
    5

    Does continuity exist?

    YES 

    Power supply and ground circuit are normal.

    NO 

    Repair harness or connector.

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