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Inspection Flow

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE DECREASE
    1. Turn temperature control dial counterclockwise to maximum cold.
    2. Check for cold air at discharge air outlets.

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK FOR ANY SYMPTOMS

    Perform a complete operational check for any symptoms. Refer to "OPERATIONAL CHECK ".

    Does another symptom exist? 

    YES: Refer to "SYMPTOM MATRIX CHART ".

    NO: System OK.

  3. CHECK FOR SERVICE BULLETINS

    Check for any service bulletins.

    GO TO 4.

  4. CHECK DRIVE BELTS

    Check compressor belt tension. Refer to "CHECKING DRIVE BELTS ".

    Is the inspection result normal? 

    YES: GO TO 5.

    NO: Adjust or replace compressor belt. Refer to "CHECKING DRIVE BELTS ".

  5. CHECK AIR MIX DOOR OPERATION

    Check and verify air mix door mechanism for smooth operation.

    Does air mix door operate correctly? 

    YES: GO TO 6.

    NO: Repair or replace air mix door control linkage.

  6. CHECK COOLING FAN MOTOR OPERATION

    Check and verify cooling fan motor for smooth operation. Refer to "COMPONENT INSPECTION ".

    Does cooling fan motor operate correctly? 

    YES: GO TO 7.

    NO: Check cooling fan motor. Refer to "DIAGNOSIS PROCEDURE ".

  7. CHECK RECOVERY/RECYCLING EQUIPMENT BEFORE USAGE

    Check recovery/recycling equipment before connecting to vehicle. Verify there is no pressure in the recovery/recycling equipment by checking the gauges. If pressure exists, recover refrigerant from equipment lines.

    GO TO 8.

  8. CHECK REFRIGERANT PURITY
    1. Connect recovery/recycling equipment to vehicle.
    2. Confirm refrigerant purity in supply tank using recovery/recycling and refrigerant identifier.

      Is the inspection result normal? 

      YES: GO TO 9.

      NO: Check contaminated refrigerant. Refer to "CONTAMINATED REFRIGERANT ".

  9. CHECK FOR EVAPORATOR FREEZE UP

    Start engine and run A/C. Check for evaporator freeze up.

    Does evaporator freeze up? 

    YES: Perform diagnostic work flow. Refer to "DIAGNOSTIC WORK FLOW ".

    NO: GO TO 10.

  10. CHECK REFRIGERANT PRESSURE

    Check refrigerant pressure with manifold gauge connected. Refer to "PERFORMANCE CHART ".

    Is the inspection result normal? 

    YES: GO TO 11.

    NO: Perform diagnostic work flow. Refer to "DIAGNOSTIC WORK FLOW ".

  11. CHECK AIR DUCTS

    Check ducts for air leaks.

    Is the inspection result normal? 

    YES: System OK.

    NO: Repair air leaks.

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