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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Security Control System (DTC/Circuit Diagnosis)) >> DTC / Circuit Diagnosis >> Power Supply And Ground Circuit >> IPDM E/R (Intelligent Power Distribution Module Engine Room) >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FUSES AND FUSIBLE LINK 

    Check that the following IPDM E/R fusible links are not blown.

    Signal name

    Fuses and fusible link No.

    Fusible link main

    E (80A)

    Fusible link IPDM E/R

    A (250A), C (80A)

    Fusible link ignition switch

    A (250A), B (100A), M (40A)

    Is the fusible link blown?

    YES

    Replace the blown fusible link after repairing the affected circuit.

    NO

    GO TO 2.

  2. CHECK POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R connectors E16 and E17.
    3. Check voltage between IPDM E/R harness connector and ground.

      Terminals

      Voltage (V)

      (Approx.)

      (+)

      (-)

      IPDM E/R

      Connector

      Terminal

      Ground

      E16

      1

      Battery voltage

      2

      E17

      3

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace harness or connector.

  3. CHECK GROUND CIRCUIT 
    1. Disconnect IPDM E/R connectors E18 and E19.
    2. Check continuity between IPDM E/R harness connectors and ground.

    IPDM E/R

    Ground

    Continuity

    Connector

    Terminal

    E18

    7

    Yes

    E19

    41

    Is the inspection result normal?

    YES

    Inspection End.

    NO

    Repair or replace harness or connector.