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Home >> Infiniti >> 2023 >> QX60 Autograph, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2 Of 2) >> Symptom Diagnosis >> Stop/Start System Inoperative >> Diagnosis Procedure
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Diagnosis Procedure

NOTE: SYMBOL Check the stop/start system operation condition. Refer to System Description .
  1. CHECK STOP/START PROHIBIT CAUSE 
    1. SYMBOL With CONSULT: Select "Stop/Start prohibit cause data recorder" in "WORK SUPPORT" mode of "ENGINE" using CONSULT.

    Does "Stop/Start prohibit cause data recorder" show fail-safe?

    YES>>

    GO TO 2.

    NO>>

    Check the operating status of system stop / start. Refer to System Description . After confirmation, go to 4.

  2. CHECK "Stop/Start error" OF CONSULT DATA MONITOR ITEM 
    1. SYMBOL With CONSULT
      1. Select "Stop/Start error" in "Monitor Menu" of "DATA MONITOR" mode in CONSULT.
      2. Check the displayed data monitor items. Refer to CONSULT Function .

    Are there any "NG" monitor items?

    YES>>

    After confirming the "NG" item, go to 3.

    NO>>

    GO TO 3.

  3. CHECK DTC 
    1. SYMBOL With CONSULT Perform "All DTC Reading" with CONSULT.

    Does it detect the DTC associated with "Stop/Start error" of "DATA MONITOR"?

    YES>>

    Perform trouble diagnosis of detected DTC. After repairing the defective part, go to 4.

    NO>>

    GO TO 4.

  4. CHECK STOP/START INDICATOR / LAMP 
    1. Check the stop/start indicator / lamp.
      WARNING LAMP/INDICATOR LAMP / INDICATOR CONDITION
      Stop/start indicator / lamp Not blinking

    Is the stop/start indicator / lamp blinking?

    YES>>

    Refer to Symptom Table .

    NO>>

    INSPECTION END