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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 211 (Engine Control System (DTC/Circuit Diagnosis) (CUMMINS 5.0L) (1 Of 6)) >> DTC/Circuit Diagnosis >> DTC U0002-00: Drivetrain Can Communication >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR ECM COMMUNICATION WITH CONSULT 
    1. Turn ignition switch ON.
    2. Connect CONSULT and check for ENGINE diagnostic trouble codes.
    3. Verify CONSULT communication with the ECM.

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    GO TO 4 .

  2. CHECK DTC PRIORITY 
    1. Turn ignition switch ON.
    2. Connect CONSULT and check for ENGINE diagnostic trouble codes.
    3. Check for DTC P0562-00 being current on the CONSULT screen.

    Is DTC P0562-00 detected as current?

    YES

    Refer to DTC Index .

    NO

    Go to 3.

  3. CHECK DTC PRIORITY 
    1. Turn ignition switch ON.
    2. Connect CONSULT and check for ENGINE diagnostic trouble codes.
    3. Check for DTC U0002-00 being current on the CONSULT screen.

    Is DTC U0002 detected as current?

    YES

    GO TO 4 .

    NO

    Refer to Intermittent Incident .

  4. INSPECT ECM AND HARNESS CONNECTOR PINS 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector F101.
    3. Inspect the ECM control module connector pins for the following:
      • Loose connector
      • Corroded pins
      • Bent or broken pins
      • Pushed back or expanded pins
      • Moisture in or on the connector
      • Missing or damaged connector seals
      • Dirt or debris on or in the connector pins
      • Connector shell broken
      • Wire insulation damage
      • Damaged connector locking tab.

    Is the inspection result normal?

    YES

    GO TO 5 .

    NO

    Repair or replace error-detected parts.

  5. CHECK FOR AN OPEN OR SHORT CIRCUIT IN THE ECM DATA LINK 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector E93.
    3. Disconnect the data link adapter from the service data link connector harness connector.
    4. Measure the resistance between ECM connector E93 terminal 16 and terminal 33.

      ECM

      Resistance

      Connector

      Terminal

      Terminal

      E93

      16

      33

      110-130 Ω

    Is the inspection result normal?

    YES

    GO TO 6.

    NO

    Replace ECM. Refer to Removal and Installation .

  6. INSPECT IPDM E/R AND FUSES 
    1. Turn ignition switch OFF.
    2. Inspect the IPDM E/R and fuses for the following:
      • Blown power supply fuses
      • Power supply fuse for cracks, burns, corrosion, or discolorations
      • Corrosion
      • Loose or expanded pins

    Is the inspection result normal?

    YES

    An OEM issue has been detected. Check the following:

    • Terminating resistance
    • Harness and connectors
    • ECM

    NO

    Repair or replace error-detected parts.

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