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Home >> Lincoln >> 2017 >> Navigator Select, 4WD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - General Information And Diagnostics >> Diagnosis And Testing >> Climate Control System >> Inspection and Verification

Inspection and Verification

  1. 1.

    Verify the customer's concern by operating the climate control system to duplicate the condition.

  1. 2.

    Inspect to determine if one of the following mechanical or electrical concerns apply:

    Visual Inspection Chart 

    Mechanical Electrical
    Loose, missing or damaged A/C compressor drive belt
    Loose or disconnected A/C clutch
    Broken or binding door/actuator
    Broken or leaking refrigerant lines
    Obstructed in-vehicle temperature and humidity sensor    		 Battery Junction Box (BJB) fuses:
    30 (10A)
    32 (40A)
    34 (30A)
    35 (50A)
    41 (10A)
    57 (5A)
    79 (15A)
    BCM fuses:
    6 (5A)
    35 (5A)
    46 (10A)
    Blower motor inoperative
    A/C compressor inoperative
    Circuitry open/shorted
    Disconnected electrical connectors
    Cooling fan inoperative
    Condenser restricted air flow

  1. 3.

    If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding.
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