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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Control System (DTC/Circuit Diagnosis) (Pr25DD) (4 Of 4)) >> DTC/Circuit Diagnosis >> U1050 Lin Communication >> DTC Diagnosis Procedure >> PR25DD engine

PR25DD engine

WARNING: This page is about a different variant/trim than selected.
  1. CHECK LIN COMMUNICATION CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector and generator harness connector.
    3. Check the continuity between ECM harness connector and generator harness connector.

      ECM

      Generator

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F90

      98

      F7

      2

      Existed

    4. Also check harness for short to power and short to ground.

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace error-detected parts.

  2. REPLACE GENERATOR 
    1. Replace generator. Refer to Removal & Installation .
    2. Erase DTC.
    3. Perform DTC confirmation procedure again. Refer to DTC Description .

    Is DTC detected again?

    YES

    Replace ECM. Refer to Removal & Installation .

    NO

    INSPECTION END