Lincoln Aviator 2020-2022 Service Manual / Electrical / Climate Control System / Climate Control System - General Information / General Procedures - Fluorescent Dye Leak Detection - Vehicles With: R134A Refrigerant

Lincoln Aviator: Climate Control System - General Information / General Procedures - Fluorescent Dye Leak Detection - Vehicles With: R134A Refrigerant

Special Tool(s) / General Equipment

UV Leak Detector
Electronic Leak Detector

Leak detection

Vehicles with air conditioning

  1. Review next note for important refrigerant system dye information.

NOTE: Fluorescent refrigerant system dye is added to the refrigerant system at the factory to assist in refrigerant system leak diagnosis using a Rotunda-approved UV lamp. Do not add dye to the refrigerant system before diagnosing leaks or after repairs, even if a significant amount of refrigerant has been removed from the system. Replacement suction accumulators, receiver driers, receiver drier elements and service condensers are shipped with a fluorescent dye wafer included in the desiccant bag which dissolves after approximately 30 minutes of continuous A/C operation. Do not add dye after flushing the refrigerant system because a new suction accumulator, receiver drier or receiver drier element is installed as part of the flushing procedure.

Fluorescent Dye Leak Detection

NOTE: Ford Motor Company vehicles are produced with R-134a fluorescent dye installed in the refrigerant system from the factory. The location of leaks can be pinpointed by the bright yellow-green glow of the fluorescent dye under a UV lamp. Since more than one leak can exist, inspect each component, line and fitting in the refrigerant system for a leak.

NOTE: Use of dye-enhancing glasses or goggles greatly improves the detection of the dye under the UV lamp.

NOTE: Not all UV lamps will fluoresce the dye used in Ford vehicles. All Rotunda UV lamps are optimized to fluoresce the dye.

NOTE: If the system has been out of refrigerant through the winter the dye at the leak point may have oxidized and may not fluoresce. If this happens, recharge and operate the A/C system to circulate the oil and allow any residual dye to show up at the leak point. It is important to understand that dye adheres to the oil not the refrigerant; the refrigerant carries the oil out of the leak point.

  1. Check for leaks using a Rotunda-approved UV lamp and dye enhancing glasses.
  1. Inspect all components, lines and fittings of the refrigerant system.
  1. After the leak(s) is repaired, remove any traces of fluorescent dye with a general purpose oil solvent.
  1. Verify the repair by running the vehicle for a short period of time and rechecking the area of the leak with a Rotunda-approved UV lamp.
    Use the General Equipment: UV Leak Detector
  1. If it is a small leak the dye may take awhile to reappear a Rotunda-approved electronic leak detector is also suggested to use. REFER to general procedures Electronic Leak Detection.
    Use the General Equipment: Electronic Leak Detector

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    Lincoln Aviator 2020-2022 Service Manual: Diagnosis and Testing - Body Control Module (BCM)


    Diagnostic Trouble Code (DTC) Chart Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).   Diagnostic Trouble Code Chart Module   DTC Description Action   BCM B11D9:16 Vehicle Battery:Circuit Voltage Below Threshold   GO to Pinpoint Test Y   BCM B11D9:17 Vehicle Battery:Circuit Voltage Above Threshold   GO to Pinpoint Test Z   BCM U0100:87 Lost Communication With ECM/PCM "A":Missing Message   GO to Pinpoint Test A   BCM U0121:87 Lost Communication With Anti-Lock Brake System (ABS) Control Module:Missing Message   GO to Pinpoint Test B   BCM U0131:87 Lost Communication With Power Steering Control Module:Missing Message   GO to Pinpoint Test C   BCM U0151:87 Lost Communication With Restraints Control Module:Missing Message   GO to Pinpoint Test D   BCM U0155:87 Lost Communication With Instrument Panel Cluster (IPC) Control Module:Missing Message   GO to Pinpoint Test E   BCM U0166:87 Lost Communication With Auxiliary Heater Control Module:Missing Message   GO to Pinpoint Test F   BCM U0184:87 Lost Communication With Radio:Missing Message   GO to Pinpoint Test G   BCM U0198:87 Lost Communication With Telematic Control Module: Missing Message   GO to Pinpoint Test H   BCM U0199:87 Lost Communication With "Door Control Module A":Missing Message   GO to Pinpoint Test I   BCM U019B:87 Lost Communication With Battery Charger Control Module:Missing Message   GO to Pinpoint Test J   BCM U0200:87 Lost Communication With "Door Control Module B":Missing Message   GO to Pinpoint Test K   BCM U0208:87 Lost Communication With "Seat Control Module A":Missing Message   GO to Pinpoint Test L   BCM U0212:87 Lost Communication With Steering Column Control Module:Missing Message   GO to Pinpoint Test M   BCM U0230:87 Lost Communication With Rear Gate Module:Missing Message   GO to Pinpoint Test N   BCM U0232:87 Lost Communication With Side Obstacle Detection Control Module "A":Missing Message   GO to Pinpoint Test O   BCM U0233:87 Lost Communication With Side Obstacle Detection Control Module "B":Missing Message   GO to Pinpoint Test P   BCM U023A:87 Lost Communication With Image Processing Control Module A:Missing Message   GO to Pinpoint Test Q   BCM U0252:87 Lost Communication With Lighting Control Module-Rear "B":Missing Message   GO to Pinpoint Test R   BCM U0253:87 Lost Communication With Accessory Protocol Interface Module:Missing Message   GO to Pinpoint Test S   BCM U0256:87 Lost Communication With Front Controls Interface Module "A":Missing Message   GO to Pinpoint Test T   BCM U0293:87 Lost Communication With Hybrid/EV Powertrain Control Module "A":Missing Message   GO to Pinpoint Test U   BCM U1000:00 Solid State Driver Protection Active:Driver Disabled: No Sub Type Information   GO to Pinpoint Test V   BCM U2005:85 Vehicle Speed:Signal Above Allowable Range   GO to Pinpoint Test W   BCM U2100:00 Initial Configuration Not Complete:No Sub Type Information   GO to Pinpoint Test X   BCM U2101:00 Control Module Configuration Inomplete:No Sub Type Information   GO to Pinpoint Test X   BCM U2200:00 Control Module Configuration Memory Corrupt:No Sub Type Information   GO to Pinpoint Test X   BCM U3000:49 Control Module:Internal Electronic Failure   GO to Pinpoint Test AA   BCM U3006:16 Control Module Input Power “A”:Circuit Voltage Below Threshold   GO to Pinpoint Test Y   BCM U3006:17 Control Module Input Power “A”:Circuit Voltage Above Threshold   GO to Pinpoint Test Z   BCM U3006:1C Control Module Input Power “A”:Circuit Voltage Out of Range   GO to Pinpoint Test Y   BCM U3006:1C Control Module Input Power “A”:Circuit Voltage Out of Range   GO to Pinpoint Test Z   BCM U3007:16 Control Module Input Power "B":Circuit Voltage Below Threshold   GO to Pinpoint Test Y   BCM U3007:17 Control Module Input Power "B":Circuit Voltage Above Threshold   GO to Pinpoint Test Z   BCM U3013:16 Control Module Input Power "C":Circuit Voltage Below Threshold   GO to Pinpoint Test Y   BCM U3013:17 Control Module Input Power "C":Circuit Voltage Above Threshold   GO to Pinpoint Test Z   BCM U3014:16 Control Module Input Power "D":Circuit Voltage Below Threshold   GO to Pinpoint Test Y   BCM U3014:17 Control Module Input Power "D":Circuit Voltage Above Threshold   GO to Pinpoint Test Z Symptom Chart Symptom Chart: Multifunction Electronic Modules Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...

    Lincoln Aviator 2020-2022 Service Manual: Diagnosis and Testing - Roof Opening Panel


    DTC Chart: Roof Opening Panel Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).   BCM Module DTC Chart DTC Description Action B12F4:12 Vehicle Speed Output: Circuit Short To Battery   GO to Pinpoint Test A B12F4:14 Vehicle Speed Output: Circuit Short To Ground or Open   GO to Pinpoint Test A - All other BCM Diagnostic Trouble Codes (DTCs)   REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing)...

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    Locking and Unlocking the Doors from Inside

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    Unlock. Lock.

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