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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 604 (Can System (Circuit Diagnosis)) >> Circuit Diagnosis >> IPDM-E Branch Line Circuit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CONNECTOR 
    1. Turn the ignition switch OFF.
    2. Disconnect the battery cable from the negative terminal.
    3. Check the terminals and connectors of the IPDM E/R for damage, bend and loose connection (unit side and connector side).

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair the terminal and connector.

  2. CHECK HARNESS FOR OPEN CIRCUIT 
    1. Disconnect the connector of IPDM E/R.
    2. Check the resistance between the IPDM E/R harness connector terminals.

      IPDM E/R harness connector

      Resistance (Ohm)

      Connector No.

      Terminal No.

      E119

      29

      28

      Approx. 54 - 66

    Is the measurement value within the specification?

    YES

    GO TO 3.

    NO

    Repair the IPDM E/R branch line.

  3. CHECK POWER SUPPLY AND GROUND CIRCUIT 

    Check the power supply and the ground circuit of the IPDM E/R. Refer to Diagnosis Procedure .

    Is the inspection result normal?

    YES

    Replace the IPDM E/R. Refer to Removal and Installation .

    YES

    Error was detected in the IPDM E/R branch line.

    NO

    Repair the power supply and the ground circuit.

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