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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Control System (DTC/Circuit Diagnosis) (5.6L) (6 Of 6)) >> DTC/Circuit Diagnosis >> Electrical Load Signal >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.

The electrical load signal (Rear window defogger switch signal, headlamp switch signal, heater fan switch signal, etc.) is transferred via the CAN communication line.

  1. INSPECTION START 

    Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). Refer to Component Function Check .

    Which circuit is related to the incident?

    Rear window defogger

    GO TO 2.

    Headlamp

    GO TO 3.

    Heater fan

    GO TO 4.

  2. CHECK REAR WINDOW DEFOGGER SYSTEM 

    Refer to Work Flow .

    INSPECTION END

  3. CHECK HEADLAMP SYSTEM 

    Refer to Work Flow .

    INSPECTION END

  4. CHECK HEATER FAN CONTROL SYSTEM 

    Refer to Workflow .

    INSPECTION END