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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Automatic Transmission (Re0F10D) (DTC/Circuit Diagnosis)) >> DTC Diagnosis >> Transmission (TCM) >> DTC P0890: TCM >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK TCM BATTERY POWER SUPPLY (BACK-UP) CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect TCM connector.
    3. Check voltage between TCM harness connector terminals and ground.

      TCM

      -

      Voltage

      Connector

      Terminal

      F16

      45

      Ground

      10 - 16 V

      46

    Is the inspection result normal?

    YES

    Replace the TCM. Refer to TCM : Removal & Installation .

    NO

    GO TO 2.

  2. DETECT MALFUNCTIONING ITEMS 

    Check the following items:

    • Open or short circuit of harness between battery positive terminal and TCM connector terminals 45, and 46.
    • 10A fuse (No. 63, located in the fuse, fusible link and relay box). Refer to Wiring Diagram .

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Repair or replace malfunctioning parts.