Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Infiniti >> 2018 >> QX30 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 23 (Heater Air Conditioning Control System) >> Basic Inspection >> Operation Inspection >> Work Procedure >> Operation Inspection

Operation Inspection

WARNING: This page is about a different car, the 2018 Infiniti Q60. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK MEMORY FUNCTION 
    1. Press AUTO switch to activate air conditioning.
    2. Set temperature to 32.0 deg.C (90 deg.F) by operating temperature control switch (driver side).
    3. Press ON.OFF switch.
    4. Turn ignition switch OFF.
    5. Turn ignition switch ON.
    6. Press AUTO switch.
    7. Check that the set temperature 32.0 deg.C (90 deg.F) is maintained.

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    GO TO 10.

  2. CHECK FAN SPEED 
    1. Start engine.
    2. Operate fan switch and check that fan speed changes.
    3. Check operation for all fan speeds.

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    GO TO 10.

  3. CHECK AIR OUTLET 
    1. Operate fan switch to set the fan speed to maximum speed.
    2. Operate MODE switch and DEF switch.
    3. Check that air outlets change according to each indicated air outlet by placing a hand in front of the outlets.

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    GO TO 10.

  4. CHECK AIR INLET 
    1. Press intake switch to set the air inlet to recirculation. The intake switch indicator lamp turns ON.
    2. Listen to intake sound and confirm air inlets change.
    3. Press intake switch again to set the air inlet to fresh air intake. The intake switch indicator lamp turns OFF.
    4. Listen to intake sound and confirm air inlets change.

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    GO TO 10.

  5. CHECK COMPRESSOR 
    1. Touch A/C switch. The A/C switch indicator turns ON.
    2. Check visually and by sound that the compressor operates.
    3. Touch A/C switch again. The A/C switch indicator turns OFF.
    4. Check that compressor stops.

    Is the inspection result normal?

    YES

    GO TO 6.

    NO

    GO TO 10.

  6. CHECK DISCHARGE AIR TEMPERATURE 
    1. Operate temperature control switch (driver side).
    2. Check that discharge air temperature (driver side) changes.
    3. Operate temperature control switch (passenger side). (DUAL switch indicator turns ON.)
    4. Check that discharge air temperature (passenger side) changes.
    5. Touch DUAL switch. DUAL switch indicator turns OFF.
    6. Check that air temperature setting (LH/RH) is unified to the driver side temperature setting.

    Is the inspection result normal?

    YES

    GO TO 7.

    NO

    GO TO 10.

  7. CHECK WITH TEMPERATURE SETTING LOWERED 
    1. Operate compressor.
    2. Operate temperature control switch (driver side) to lower the set temperature to 18.0 deg.C (60 deg.F).
    3. Check that cool air blows from the air outlets.

    Is the inspection result normal?

    YES

    GO TO 8.

    NO

    GO TO 10.

  8. CHECK TEMPERATURE INCREASE 
    1. Warm up engine to the normal operating temperature.
    2. Operate temperature control dial (driver side) to raise the set temperature to 32.0 deg.C (90 deg.F).
    3. Check that warm air blows from the air outlets.

    Is the inspection result normal?

    YES

    GO TO 9.

    NO

    GO TO 10.

  9. CHECK AUTO MODE 
    1. Press AUTO switch and check that AUTO indicator lamp turns ON.
    2. Operate temperature control switch (driver side) to check that fan speed or air outlet changes (the air outlet or fan speed varies depending on the ambient temperature, in-vehicle temperature, set temperature, and etc.).

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    GO TO 10.

  10. CHECK SELF-DIAGNOSIS WITH CONSULT 
    1. Perform self-diagnosis with CONSULT.
    2. Check that any DTC is detected.

    Is any DTC detected?

    YES

    Refer to DTC Index , and perform the appropriate diagnosis.

    NO

    GO TO 11.

  11. CHECK FAIL-SAFE ACTIVATION 

    Check that symptom is applied to the fail-safe activation. Refer to Fail-safe .

    Refer to Symptom Table , and perform the appropriate diagnosis.