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Home >> Infiniti >> 2017 >> Q50 Base, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> INFINITI Intuition (Drive Mode System) (Except Hybrid) >> DTC/Circuit Diagnosis >> Drive Mode Select Switch Circuit >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK DRIVE MODE SELECT SWITCH SIGNAL CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect drive mode select switch harness connector and chassis control module harness connector.
    3. Check the continuity between drive mode select switch harness connector and chassis control module harness connector.
      FOR 2.0L TURBO GASOLINE ENGINE MODELS

      + - Continuity
      Drive mode select switch Chassis control module
      Connector Terminal Connector Terminal
      M35 2 E22 6 Existed
      3 5
      FOR VR30DDTT ENGINE MODELS

      + - Continuity
      Drive mode select switch Chassis control module
      Connector Terminal Connector Terminal
      M35 2 E219 9 Existed
      3 22
    4. Also check harness for short to ground and to power.

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Repair or replace error-detected parts.

  2. CHECK DRIVE MODE SELECT SWITCH GROUND CIRCUIT

    Check the continuity between drive mode select switch harness connector and ground.

    + - Continuity
    Drive mode select switch
    Connector Terminal
    M35 1 Ground Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace error-detected parts.

  3. CHECK DRIVE MODE SELECT SWITCH

    Check drive mode select switch. Refer to COMPONENT INSPECTION (DRIVE MODE SELECT SWITCH) .

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Replace drive mode switch. Refer to REMOVAL AND INSTALLATION .