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Home >> Nissan-Datsun >> 2019 >> Maxima SL >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Drive Mode System (Circuit Diagnosis) >> Circuit Diagnosis >> Sport Mode Switch Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. TCM INPUT SIGNAL 
    1. Turn ignition switch ON.
    2. Select the "Data Monitor" for the "TRANSMISSION" and check the "DRIVE MODE STATS" monitor value.

      Condition

      Value

      When the SPORT mode switch is pressed.

      SPORT ↔ NORMAL

    Is the inspection result normal?

    YES

    GO TO 7 .

    NO

    GO TO 2 .

  2. CHECK DRIVE MODE SELECTOR CIRCUIT 
    1. Check voltage between A/C auto amp. harness connector terminals.

      A/C auto amp.

      -

      Condition

      Voltage (Approx.)

      Connector

      +

      Terminal

      M37

      31

      Ground

      Drive mode selector: SPORT switch ON

      0 V

      Drive mode selector: SPORT switch OFF

      12 V

    Is the inspection result normal?

    YES

    Replace TCM. Refer to Removal and Installation .

    NO

    GO TO 3 .

  3. CHECK GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect drive mode selector connector.
    3. Check the continuity between drive mode selector harness connector and ground.

      Drive mode selector

      --

      Continuity

      Connector

      Terminal

      M264

      12

      Ground

      Existed

    Is the inspection result normal?

    YES

    GO TO 4 .

    NO

    Repair or replace damaged parts.

  4. CHECK CIRCUIT BETWEEN A/C AUTO AMP. AND DRIVE MODE SELECTOR (1) 
    1. Disconnect A/C auto amp. connector.
    2. Check continuity between A/C auto amp. harness connector terminals and drive mode selector harness connector terminals.

      A/C auto amp.

      Drive mode selector

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M37

      31

      M264

      9

      Existed

    Is the inspection result normal?

    YES

    GO TO 5 .

    NO

    Repair or replace damaged parts.

  5. CHECK CIRCUIT BETWEEN A/C AUTO AMP. AND DRIVE MODE SELECTOR (2) 

    Check continuity between A/C auto amp. harness connector terminal and ground.

    A/C auto amp.

    --

    Continuity

    Connector

    Terminal

    M37

    31

    Ground

    Not existed

    Is the inspection result normal?

    YES

    GO TO 6 .

    NO

    Repair or replace damaged parts.

  6. CHECK DRIVE MODE SELECTOR 

    Check drive mode selector. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    Replace A/C auto amp. Refer to Removal and Installation .

    NO

    Replace drive mode selector. Refer to Removal and Installation .

  7. COMBINATION METER INPUT SIGNAL 

    Select the "Data Monitor" for the "METER/M&A" and check the "SPORT IND" monitor value.

    Condition

    Value

    In SPORT mode

    ON

    Other than above

    OFF

    Is the inspection result normal?

    YES

    Replace TCM. Refer to Removal and Installation .

    NO

    Replace combination meter. Refer to Removal and Installation .