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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 >> Shift Lock System >> With ICC >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

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

  1. CHECK POWER SOURCE (PART 1)

    1. Turn ignition switch OFF.
    2. Disconnect shift lock relay.
    3. Check voltage between shift lock relay harness connector terminal and ground.
      + - Condition Voltage
      (Approx.)
      Shift lock relay
      Connector Terminal
      E34 2 Ground Depressed brake pedal. Battery voltage
      Released brake pedal. 0 V

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    GO TO STEP 9  .

  2. CHECK GROUND CIRCUIT (PART 1)

    Check continuity between shift lock relay harness connector terminal and ground.

    Shift lock relay - Continuity
    Connector Terminal
    E34 1 Ground Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace damaged parts.

  3. CHECK SHIFT LOCK RELAY

    Check shift lock relay. Refer to COMPONENT INSPECTION (SHIFT LOCK RELAY) .

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair or replace damaged parts.

  4. CHECK POWER SOURCE (PART 2)

    1. Turn ignition switch ON.
    2. Check voltage between shift lock relay harness connector terminal and ground.
      + - Voltage
      (Approx.)
      Shift lock relay
      Connector Terminal
      E34 5 Ground Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    GO TO STEP 17  .

  5. CHECK HARNESS BETWEEN SHIFT LOCK RELAY AND A/T SHIFT SELECTOR (PART 1)

    1. Turn ignition switch OFF.
    2. Disconnect A/T shift selector connector.
    3. Check continuity between shift lock relay harness connector terminal and A/T shift selector harness connector terminal
      Shift lock relay A/T shift selector Continuity
      Connector Terminal Connector Terminal
      E34 3 M7 8 Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 6  .

    NO 

    Repair or replace damaged parts.

  6. CHECK HARNESS BETWEEN SHIFT LOCK RELAY AND A/T SHIFT SELECTOR (PART 2)

    Check continuity between shift lock relay harness connector terminal and ground.

    Shift lock relay - Continuity
    Connector Terminal
    E34 3 Ground Not existed

    Is the inspection result normal?

    YES 

    GO TO STEP 7  .

    NO 

    Repair or replace damaged parts.

  7. CHECK GROUND CIRCUIT (PART 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 8  .

    NO 

    Repair or replace damaged parts.

  8. CHECK SHIFT LOCK UNIT

    Check shift lock unit. Refer to COMPONENT INSPECTION (SHIFT LOCK UNIT) 

    Is the inspection result normal?

    YES 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    NO 

    Repair or replace damaged parts.

  9. CHECK POWER SOURCE (PART 3)

    1. Disconnect stop lamp OFF relay 1.
    2. Check voltage between stop lamp OFF relay 1 harness connector terminal and ground.
      + - Voltage
      (Approx.)
      Stop lamp OFF relay 1
      Connector Terminal
      E56 3 Ground Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 12  .

    NO 

    GO TO STEP 10  .

  10. CHECK HARNESS BETWEEN FUSE BLOCK (J/B) AND STOP LAMP OFF RELAY 1

    1. Turn ignition switch OFF and wait for 10 minutes or more.
    2. Disconnect fuse block (J/B) connector.
    3. Check continuity between fuse block (J/B) harness connector terminal and stop lamp OFF relay 1 harness connector terminal.
      Fuse block (J/B) Stop lamp OFF relay 1 Continuity
      Connector Terminal Connector Terminal
      E65 2F E56 3 Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 11  .

    NO 

    Repair or replace damaged parts.

  11. DETECT MALFUNCTIONING ITEM (PART 1)

    Check the following items:

    Is the inspection result normal?

    YES 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    NO 

    Repair or replace damaged parts.

  12. CHECK STOP LAMP SWITCH MOUNTING POSITION

    Check stop lamp switch mounting position. Refer to INSPECTION AND ADJUSTMENT .

    Is the inspection result normal?

    YES 

    GO TO STEP 13  .

    NO 

    Adjust stop lamp switch mounting position.

  13. CHECK STOP LAMP SWITCH

    Check stop lamp switch. Refer to COMPONENT INSPECTION (STOP LAMP SWITCH) .

    Is the inspection result normal?

    YES 

    GO TO STEP 14  .

    NO 

    Repair or replace damaged parts.

  14. CHECK HARNESS BETWEEN STOP LAMP SWITCH AND SHIFT LOCK RELAY

    1. Check continuity between stop lamp switch harness connector terminal and shift lock relay harness connector terminal.
      Stop lamp switch Shift lock relay Continuity
      Connector Terminal Connector Terminal
      E57 4 E34 2 Existed
    2. Also check short circuit in harness.

    Is the inspection result normal?

    YES 

    GO TO STEP 15  .

    NO 

    Repair or replace damaged parts.

  15. CHECK HARNESS BETWEEN STOP LAMP OFF RELAY 1 AND STOP LAMP SWITCH

    1. Check continuity between stop lamp OFF relay 1 harness connector terminal and stop lamp switch harness connector terminal.
      Stop lamp OFF relay 1 Stop lamp switch Continuity
      Connector Terminal Connector Terminal
      E56 4 E57 3 Existed
    2. Also check short circuit in harness.

    Is the inspection result normal?

    YES 

    GO TO STEP 16  .

    NO 

    Repair or replace damaged parts.

  16. CHECK STOP LAMP OFF RELAY 1 CIRCUIT

    Check stop lamp OFF relay 1 circuit. Refer to DIAGNOSIS PROCEDURE .

    Is the inspection result normal?

    YES 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    NO 

    Repair or replace damaged parts.

  17. CHECK HARNESS BETWEEN FUSE BLOCK (J/B) AND SHIFT LOCK RELAY

    1. Turn ignition switch OFF and wait for 10 minutes or more.
    2. Disconnect fuse block (J/B) connector.
    3. Check continuity between fuse block (J/B) harness connector terminal and shift lock relay harness connector terminal.
      Fuse block (J/B) Shift lock relay Continuity
      Connector Terminal Connector Terminal
      B39 9H E34 5 Existed
    4. Also check short circuit in harness.

    Is the inspection result normal?

    YES 

    GO TO STEP 18  .

    NO 

    Repair or replace damaged parts.

  18. DETECT MALFUNCTIONING ITEM (PART 2)

    Check the following items:

    Is the inspection result normal?

    YES 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    NO 

    Repair or replace damaged parts.