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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 683 (Charging System (DTC/Circuit Diagnosis)) >> Circuit Diagnosis >> L Terminal Circuit (Open) >> Diagnosis Procedure >> Charging System (DTC/Circuit Diagnosis)

Charging System (DTC/Circuit Diagnosis)

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 "L" TERMINAL CONNECTION 
    1. Turn ignition switch OFF.
    2. Check if "L" terminal is clean and tight.

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair "L" terminal connection. Confirm repair by performing system test using 165-DSS-5000P. Refer to applicable Instruction Manual for proper testing procedures.

  2. CHECK "L" TERMINAL CIRCUIT (OPEN) 
    1. Disconnect the generator connector.
    2. Apply ground to generator harness connector terminal.
    3. Check condition of the charge warning lamp with the ignition switch in the ON position.

      Generator

      Ground

      Condition

      Connector

      Terminal

      Ignition switch position

      Charge warning lamp

      F7

      2

      ON

      Illuminate

    Does it illuminate?

    YES

    "L" terminal circuit is normal. Refer to Work Flow (With 165-DSS-5000P) or Work Flow (Without 165-DSS-5000P) .

    NO

    GO TO 3.

  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) 
    1. Disconnect the battery cable from the negative terminal.
    2. Disconnect the combination meter connector.
    3. Check continuity between generator harness connector and combination meter harness connector.

      Generator

      Combination meter

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F7

      2

      M24

      11

      Yes

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Repair or replace the harness or connectors.

  4. CHECK HARNESS CONTINUITY (OPEN CIRCUIT) 

    Check continuity between combination meter harness connector and fuse block (J/B).

    Combination meter

    Fuse block (J/B)

    Continuity

    Connector

    Terminal

    Connector

    Terminal

    M24

    21

    M4

    8P

    Yes

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Repair or replace the harness or connectors.

  5. CHECK POWER SUPPLY CIRCUIT 
    1. Connect the battery cable to the negative terminal.
    2. Check voltage between combination meter harness connector and ground.

      (+)

      (-)

      Condition

      Voltage

      (Approx.)

      Combination meter

      Connector

      Terminal

      M24

      21

      Ground

      When the ignition switch is in ON position

      Battery voltage

    Is the inspection result normal?

    YES

    Replace the combination meter. Refer to Removal and Installation .

    NO

    Repair or replace the harness or connectors.