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Home >> Infiniti >> 2017 >> Q50 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 447 (Wheel & Tire System) >> Basic Inspection >> Diagnosis And Repair Work Flow >> Work Flow >> Detailed Flow

Detailed Flow

WARNING: This page is about a different car, the 2019 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.
  1. INTERVIEW FROM THE CUSTOMER 

    Clarify customer complaints before inspection. To do so, reproduce the symptom before hand and fully understand it. Then interview the customer thoroughly. Check the symptoms by driving vehicle with the customer, if necessary.

    CAUTION: Customers are not professional. Never guess easily like "maybe the customer means that...," or " maybe the customer mentions this symptom".

    GO TO 2.

  2. CHECK TIRE PRESSURE WARNING LAMP FUNCTION 

    Check that tire pressure warning lamp in combination meter.

    Tire pressure warning lamp turn ON?

    YES

    GO TO 3.

    NO

    GO TO 6.

  3. CHECK TIRE PRESSURE 

    Check the tire pressure of all wheels. Refer to Tire Air Pressure .

    NOTE: Check the tire pressure of cold condition.

    Is the inspection standard value?

    YES

    GO TO 6.

    NO

    GO TO 4.

  4. ADJUST TIRE PRESSURE 
    1. Check and adjust the tire pressure for all wheels specified to the value. Refer to Tire Air Pressure .
    2. Drive at a speed of 40 km/h (25 MPH) or more for 3 minutes, and then drive the vehicle at any speed for 10 minutes.

    Tire pressure warning lamp turn OFF?

    YES

    GO TO 5.

    NO

    GO TO 6.

  5. CHECK AIR LEAK 

    Using soapsuds etc., check air leak.

    NOTE: Check air valve.

    Is air leak detected?

    YES

    Repair or replace error-detected parts. Replace the grommet seal. Perform tire pressure sensor ID registration. Refer to Description .

    NO

    INSPECTION END

  6. PERFORM SELF-DIAGNOSIS 

    SYMBOL With CONSULT

    Perform self-diagnosis for "AIR PRESSURE MONITOR".

    Is DTC detected?

    YES

    Record or print self-diagnosis results and freeze frame data (FFD). GO TO 8.

    NO

    GO TO 7.

  7. CONFIRM THE SYMPTOM 

    Perform symptom diagnosis. Refer to Symptom Table .

    Repair or replace error-detected parts. GO TO 10.

  8. PERFORM DTC CONFIRMATION PROCEDURE 

    SYMBOL With CONSULT

    Perform DTC CONFIRMATION PROCEDURE for the detected DTC and then check that DTC is detected again.

    Is DTC detected?

    YES

    GO TO 9.

    NO

    Check harness and connectors based on the information obtained by interview. Refer to Intermittent Incident .

  9. DIAGNOSIS PROCEDURE 

    Perform DTC Diagnosis Procedure.

    Repair or replace error-detected parts. GO TO 10.

  10. FINAL CHECK 

    Recheck the symptom and check that the symptom is not reproduced on the same conditions.

    Is the symptom reproduced?

    YES

    GO TO 2.

    NO

    INSTPECTION END

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