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

Diagnosis Procedure

  1. DETECT MALFUNCTIONING ITEMS 

    What is malfunction items?

    SPORT mode switch illumination does not turns ON

    .

    SPORT mode indicator lamp does not turns ON

    .

  2. CHECK SPORT MODE SWITCH ILLUMINATION POWER SUPPLY (1) 
    1. Turn OFF the headlamp.
    2. Turn ignition switch OFF.
    3. Disconnect SPORT mode switch harness connector.
    4. Turn ignition switch ON.
    5. Turn ON the headlamp.
    6. Check the voltage between SPORT mode switch harness connector terminals.

      SPORT mode switch

      Voltage

      Connector

      +

      -

      Terminal

      M81

      1

      4

      Battery voltage

    Is the inspection result normal?

    YES

    .

    NO

    .

  3. CHECK INTERMITTENT INCIDENTE 

    Refer to Intermittent Incident .

    Is the inspection result normal?

    YES

    Replace SPORT mode switch. Refer to Removal and Installation .

    NO

    Replace the fuse after repair the applicable circuit.

  4. CHECK SPORT MODE SWITCH ILLUMINATION POWER SUPPLY (2) 

    Check the voltage between SPORT mode switch harness connector and ground.

    +

    -

    Voltage

    SPORT mode switch

    Connector

    Terminal

    M81

    1

    Ground

    Battery voltage

    Is the inspection result normal?

    YES

    .

    NO

    .

  5. CHECK FUSE 
    1. Turn OFF the headlamp.
    2. Turn ignition switch OFF.
    3. Pull out #37 fuse. Refer to IPDM E/R Terminal Arrangement .
    4. Check that the fuse is not fusing.

    Is the inspection result normal?

    YES

    .

    NO

    Replace the fuse after repair the applicable circuit.

  6. CHECK SPORT MODE SWITCH ILLUMINATION POWER SUPPLY CIRCUIT 
    1. Disconnect IPDM E/R harness connector E45.
    2. Check the continuity between IPDM E/R harness connector and SPORT mode switch harness connector.

      +

      -

      Continuity

      IPDM E/R

      SPORT mode switch

      Connector

      Terminal

      Connector

      Terminal

      E45

      33

      M81

      1

      Existed
    3. Also check harness for short to ground.

    Is the inspection result normal?

    YES

    Perform IPDM E/R auto active test and check tail lamp relay operation. Refer to Diagnosis Description (with intelligent key), Diagnosis Description (without intelligent key).

    NO

    Repair or replace error-detected parts.

  7. CHECK GROUND CIRCUIT 
    1. Turn OFF the headlamp.
    2. Turn ignition switch OFF.
    3. Check continuity between SPORT mode switch harness connector terminal and ground.

      +

      -

      Continuity

      SPORT mode switch

      Connector

      Terminal

      M81

      4

      Ground

      Existed

    Is the inspection result normal?

    YES

    Check intermittent incident. Refer to Intermittent Incident .

    NO

    Repair or replace error-detected parts.

  8. CHECK SPORT MODE SWITCH CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect SPORT mode switch harness connector.
    3. Turn ignition switch ON.
    4. Check voltage between SPORT mode switch harness connector terminals.

      SPORT mode switch

      Voltage (Approx.)

      Connector

      +

      -

      Terminal

      M81

      6

      8

      5 V

    Is the inspection result normal?

    YES

    .

    NO

    .

  9. CHECK GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Check the continuity between SPORT mode switch harness connector and ground.

      SPORT mode switch

      -

      Continuity

      Connector

      Terminal

      M81

      8

      Ground

      Existed

    Is the inspection result normal?

    YES

    .

    NO

    Repair or replace damaged parts.

  10. CHECK CIRCUIT BETWEEN COMBINATION METER AND SPORT MODE SWITCH (1) 
    1. Disconnect combination meter harness connector M122.
    2. Check continuity between combination meter harness connector terminal and SPORT mode switch harness connector terminal.

      Combination meter

      SPORT mode switch

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M122

      29

      M81

      6

      Existed

    Is the inspection result normal?

    YES

    .

    NO

    Repair or replace damaged parts.

  11. CHECK CIRCUIT BETWEEN COMBINATION METER AND SPORT MODE SWITCH (2) 

    Check continuity between combination meter harness connector terminal and SPORT mode switch harness connector terminal.

    Combination meter

    -

    Continuity

    Connector

    Terminal

    M122

    29

    Ground

    Not existed

    Is the inspection result normal?

    YES

    .

    NO

    Repair or replace damaged parts.

  12. CHECK COMBINATION METER INPUT/OUTPUT SIGNAL 
    1. Connect all of disconnected connectors.
    2. Check input/output signal of combination meter. Refer to Reference Value .

    Is the inspection result normal?

    YES

    Check intermittent incident. Refer to Intermittent Incident .

    NO

    Replace combination meter. Refer to Removal and Installation .

  13. CHECK SPORT MODE SWITCH 

    Check SPORT mode switch. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    Check intermittent incident. Refer to Intermittent Incident .

    NO

    Replace SPORT mode switch. Refer to Removal and Installation .

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