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Nissan Sentra B18 (2020-2025) Service Manual: Main Line Between Abs and M&a Circuit

Diagnosis Procedure

Diagnosis Procedure

  1. CHECK CONNECTOR

    1. Turn the ignition switch OFF.

    2. Disconnect the battery cable from the negative terminal.

    3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).

      • Harness connector E4

      • Harness connector M2

    Is the inspection result normal?

    YES >>

    GO TO 2.

    NO >>

    Repair the terminal and connector.

  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

    1. Disconnect the following harness connectors.

      • ABS actuator and electric unit (control unit)

      • Harness connectors E4 and M2

    2. Check the continuity between the ABS actuator and electric unit (control unit) harness connector and the harness connector.

      ABS actuator and electric unit (control unit) harness connector

      Harness connector

      Continuity

      Connector No.

      Terminal No.

      Connector No.

      Terminal No.

      E33

      11

      E4

      55G

      Existed

      10

      54G

      Existed

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    Repair the main line between the ABS actuator and electric unit (control unit) and the harness connector E4.

  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

    1. Disconnect the connector of combination meter.

    2. Check the continuity between the harness connector and the combination meter harness connector.

    Harness connector

    Combination meter harness connector

    Continuity

    Connector No.

    Terminal No.

    Connector No.

    Terminal No.

    M2

    55G

    M24

    18

    Existed

    54G

    19

    Existed

    Is the inspection result normal?

    YES (Present error) >>

    Check CAN system type decision again.

    YES (Past error) >>

    Error was detected in the main line between the ABS actuator and electric unit (control unit) and the combination meter.

    NO >>

    Repair the main line between the harness connector M2 and the combination meter.

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