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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Heater & Air Conditioning Control System (Except Hybrid)) >> Symptom Diagnosis >> Insufficient Heating >> Rear Air Conditioner >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

Perform the self - diagnoses with on board diagnosis and CONSULT before performing symptom diagnosis. If any malfunction result or DTC is detected, perform the corresponding diagnosis.

  1. CHECK PTC HEATER

    Check PTC heater. Refer to DIAGNOSIS PROCEDURE .

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Replace PTC heater. Refer to REMOVAL AND INSTALLATION .

  2. CHECK AIR LEAKAGE FROM EACH DUCT

    Check duct and nozzle, etc. of the rear air conditioning system for air leakage.

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace parts depending on the inspection results.

  3. CHECK SETTING OF TEMPERATURE SETTING TRIMMER (REAR)

    1. Check setting value of temperature setting trimmer (rear). Refer to TEMPERATURE SETTING TRIMMER (REAR) .
    2. Check that the temperature setting trimmer is set to " - direction".
      NOTE:

      The control temperature can be set by the temperature setting trimmer (rear).

    3. Set the difference between the set temperature (rear) and control temperature to "0".

    Are the symptoms solved?

    YES 

    Inspection End.

    NO 

    Replace A/C auto amp. Refer to REMOVAL AND INSTALLATION .

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