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Home >> Infiniti >> 2016 >> Q50 Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 51 (Automatic Transmission (Diagnostic Trouble Codes (DTCS) P0750-P2807 And Circuit Diagnosis) (Hybrid)) >> DTC / Circuit Diagnosis >> Selector Lever Position Indicator >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

  1. CHECK MALFUNCTIONING ITEM

    Which item is abnormal?

    Position indicator lamp 

    GO TO STEP 2  .

    Illumination lamp 

    GO TO STEP 9  .

  2. CHECK POWER SOURCE (PART 1)

    1. Turn ignition switch OFF.
    2. Disconnect A/T shift selector connector.
    3. Turn ignition switch ON.
    4. Check voltage between A/T shift selector harness connector terminal and ground.
      + - Voltage (Approx.)
      A/T shift selector
      Connector Terminal
      M7 10 Ground Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    GO TO STEP 6  .

  3. CHECK GROUND CIRCUIT

    1. Turn ignition switch OFF.
    2. Check continuity between A/T shift selector harness connector terminal and ground.
      A/T shift selector - Continuity
      Connector Terminal
      M7 4 Ground Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair or replace damaged parts.

  4. CHECK SHIFT POSITION SWITCH

    1. Disconnect selector lever position indicator side connector of shift position switch.
    2. Check continuity between A/T shift selector connector terminals and selector lever position indicator side connector terminals of shift position switch.
      A/T shift selector connector Selector lever position indicator side connector of shift position switch Condition Continuity
      Connector Terminal Connector Terminal
      M7 4 M221 7 Selector lever in "D" position. Existed
      2, 3, 4, 5, 6, 9, 10, 11 Not existed
      9 Selector lever in "M" position. Existed
      2, 3, 4, 5, 6, 7, 10, 11 Not existed
      10 2, 6 Selector lever in "N" and "M" position. Existed
      3, 4, 5, 7, 9, 10, 11 Not existed
      3, 6 Selector lever in "D" position. Existed
      2, 4, 5, 7, 9, 10, 11 Not existed
      4, 6 Selector lever in "R" position. Existed
      2, 3, 5, 7, 9, 10, 11 Not existed
      5, 6 Selector lever in "P" position. Existed
      2, 3, 4, 7, 9, 10, 11 Not existed

    Is the inspection result normal?

    YES 

    GO TO STEP 5. 

    NO 

    Repair or replace damaged parts.

  5. CHECK SELECTOR LEVER POSITION INDICATOR

    Check selector lever position indicator. Refer to COMPONENT INSPECTION (SELECTOR LEVER POSITION INDICATOR) .

    Is the inspection result normal?

    YES 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    NO 

    Replace damaged parts.

  6. CHECK HARNESS BETWEEN A/T SHIFT SELECTOR AND BCM (PART 1)

    1. Turn ignition switch OFF.
    2. Disconnect BCM connector.
    3. Check continuity between A/T shift selector harness connector terminal and BCM harness connector terminal.
    A/T shift selector BCM Continuity
    Connector Terminal Connector Terminal
    M7 10 M14 69 Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 7  .

    NO 

    Repair or replace damaged parts.

  7. CHECK HARNESS BETWEEN A/T SHIFT SELECTOR AND BCM (PART 2)

    Check continuity between A/T shift selector harness connector terminal and ground.

    A/T shift selector - Continuity
    Connector Terminal
    M7 10 Ground Not existed

    Is the inspection result normal?

    YES 

    GO TO STEP 8  .

    NO 

    Repair or replace damaged parts.

  8. CHECK BCM INPUT/OUTPUT SIGNAL

    Check BCM input/output signal. Refer to REFERENCE VALUE .

    Is the inspection result normal?

    YES 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    NO 

    Repair or replace damaged parts.

  9. CHECK POWER SOURCE (PART 2)

    1. Turn ignition switch OFF.
    2. Disconnect A/T shift selector connector.
    3. Turn ignition switch ON.
    4. Check voltage between A/T shift selector vehicle side harness connector terminals.
      A/T shift selector Condition Voltage
      (Approx.)
      Connector + -
      Terminal
      M7 7 9 Lighting switch 1ST Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 10  .

    NO 

    Check illumination circuit. Refer to WIRING DIAGRAM .

  10. CHECK SHIFT POSITION SWITCH

    1. Disconnect selector lever position indicator side connector of shift position switch.
    2. Check continuity between A/T shift selector connector terminals and selector lever position indicator side connector terminals of shift position switch.
      A/T shift selector Selector lever position indicator side connector of shift position switch Continuity
      Connector Terminal Connector Terminal
      M7 7 M221 10 Existed
      2, 3, 4, 5, 6, 7, 9, 11 Not existed
      9 11 Existed
      2, 3, 4, 5, 6, 7, 9, 10 Not existed

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Repair or replace damaged parts.

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