Lincoln Aviator Manuals
Lincoln Aviator 2020-2025 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

    General Procedures - Evaporator Core Leak Check - Vehicles With: R134A Refrigerant

    Special Tool(s) / General Equipment Air Conditioning Service Unit Air Conditioning Adaptor Kit Inspection Recover the refrigerant...

    General Procedures - Heater Core Leak Check - Vehicles With: R134A Refrigerant

    Inspection NOTE: A coolant leak in the heater hose could follow the heater core tube to the heater core and appear as a leak in the heater core...

    Other information:

    Lincoln Aviator 2020-2025 Service Manual: Removal and Installation - Windshield Wiper Motor


    Removal NOTE: Removal steps in this procedure may contain installation details. Remove the wiper linkage assembly. Refer to: Wiper Linkage Assembly (501-16 Wipers and Washers, Removal and Installation). NOTICE: Be careful not to damage the link seals during removal...

    Lincoln Aviator 2020-2025 Service Manual: Diagnosis and Testing - Parking Aid


    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   IPMB B1303:13 Park Assist Switch:Circuit Open   GO to Pinpoint Test D   IPMB B1303:9E Park Assist Switch:Stuck On   GO to Pinpoint Test D   IPMB B1B36:08 Right Front Outer Sensor:Bus Signal/Message Failure   GO to Pinpoint Test I   IPMB B1B36:96 Right Front Outer Sensor: Component Internal Failure   GO to Pinpoint Test N   IPMB B1B36:98 Right Front Outer Sensor:Component Or System Over Temperature   GO to Pinpoint Test O   IPMB B1B38:08 Right Front Inner Sensor:Bus Signal/Message Failure   GO to Pinpoint Test J   IPMB B1B38:96 Right Front Inner Sensor: Component Internal Failure   GO to Pinpoint Test N   IPMB B1B38:98 Right Front Inner Sensor:Component Or System Over Temperature   GO to Pinpoint Test O   IPMB B1B40:08 Left Front Outer Sensor:Bus Signal/Message Failure   GO to Pinpoint Test K   IPMB B1B40:96 Left Front Outer Sensor: Component Internal Failure   GO to Pinpoint Test N   IPMB B1B40:98 Left Front Outer Sensor:Component Or System Over Temperature   GO to Pinpoint Test O   IPMB B1B42:08 Left Front Inner Sensor:Bus Signal/Message Failure   GO to Pinpoint Test L   IPMB B1B42:96 Left Front Inner Sensor: Component Internal Failure   GO to Pinpoint Test N   IPMB B1B42:98 Left Front Inner Sensor:Component Or System Over Temperature   GO to Pinpoint Test O   IPMB B1B44:08 Right Rear Outer Sensor:Bus Signal/Message Failure   GO to Pinpoint Test E   IPMB B1B44:96 Right Rear Outer Sensor: Component Internal Failure   GO to Pinpoint Test M   IPMB B1B44:98 Right Rear Outer Sensor:Component Or System Over Temperature   GO to Pinpoint Test P   IPMB B1B46:08 Right Rear Inner Sensor:Bus Signal/Message Failure   GO to Pinpoint Test F   IPMB B1B46:96 Right Rear Inner Sensor: Component Internal Failure   GO to Pinpoint Test M   IPMB B1B46:98 Right Rear Inner Sensor:Component Or System Over Temperature   GO to Pinpoint Test P   IPMB B1B48:08 Left Rear Outer Sensor:Bus Signal/Message Failure   GO to Pinpoint Test G   IPMB B1B48:96 Left Rear Outer Sensor: Component Internal Failure   GO to Pinpoint Test M   IPMB B1B48:98 Left Rear Outer Sensor:Component Or System Over Temperature   GO to Pinpoint Test P   IPMB B1B50:08 Left Rear Inner Sensor:Bus Signal/Message Failure   GO to Pinpoint Test H   IPMB B1B50:96 Left Rear Inner Sensor: Component Internal Failure   GO to Pinpoint Test M   IPMB B1B50:98 Left Rear Inner Sensor:Component Or System Over Temperature   GO to Pinpoint Test P   IPMB B1B57:11 Front Sensors Power Circuit: Circuit Short To Ground   GO to Pinpoint Test B   IPMB B1B58:11 Rear Sensors Power Circuit: Circuit Short To Ground   GO to Pinpoint Test C   IPMB U0428:00 Invalid Data Received From Steering Angle Sensor Module:No Sub Type Information   GO to Pinpoint Test Z   PAM B1303:13 Park Assist Switch:Circuit Open   GO to Pinpoint Test D   PAM B1303:9E Park Assist Switch:Stuck On   GO to Pinpoint Test D   PAM B1B36:08 Right Front Outer Sensor:Bus Signal/Message Failure   GO to Pinpoint Test I   PAM B1B36:1F Right Front Outer Sensor:Circuit Intermittent   GO to Pinpoint Test I   PAM B1B36:31 Right Front Outer Sensor:No Signal   GO to Pinpoint Test I   PAM B1B36:96 Right Front Outer Sensor: Component Internal Failure   GO to Pinpoint Test N   PAM B1B36:98 Right Front Outer Sensor:Component Or System Over Temperature   GO to Pinpoint Test O   PAM B1B38:08 Right Front Inner Sensor:Bus Signal/Message Failure   GO to Pinpoint Test J   PAM B1B38:1F Right Front Inner Sensor:Circuit Intermittent   GO to Pinpoint Test J   PAM B1B38:31 Right Front Inner Sensor:No Signal   GO to Pinpoint Test J   PAM B1B38:96 Right Front Inner Sensor: Component Internal Failure   GO to Pinpoint Test N   PAM B1B38:98 Right Front Inner Sensor:Component Or System Over Temperature   GO to Pinpoint Test O   PAM B1B40:08 Left Front Outer Sensor:Bus Signal/Message Failure   GO to Pinpoint Test K   PAM B1B40:1F Left Front Outer Sensor:Circuit Intermittent   GO to Pinpoint Test K   PAM B1B40:31 Left Front Outer Sensor:No Signal   GO to Pinpoint Test K   PAM B1B40:96 Left Front Outer Sensor: Component Internal Failure   GO to Pinpoint Test N   PAM B1B40:98 Left Front Outer Sensor:Component Or System Over Temperature   GO to Pinpoint Test O   PAM B1B42:08 Left Front Inner Sensor:Bus Signal/Message Failure   GO to Pinpoint Test L   PAM B1B42:1F Left Front Inner Sensor:Circuit Intermittent   GO to Pinpoint Test L   PAM B1B42:31 Left Front Inner Sensor:No Signal   GO to Pinpoint Test L   PAM B1B42:96 Left Front Inner Sensor: Component Internal Failure   GO to Pinpoint Test N   PAM B1B42:98 Left Front Inner Sensor:Component Or System Over Temperature   GO to Pinpoint Test O   PAM B1B44:08 Right Rear Outer Sensor:Bus Signal/Message Failure   GO to Pinpoint Test E   PAM B1B44:1F Right Rear Outer Sensor:Circuit Intermittent   GO to Pinpoint Test E   PAM B1B44:31 Right Rear Outer Sensor:No Signal   GO to Pinpoint Test E   PAM B1B44:96 Right Rear Outer Sensor: Component Internal Failure   GO to Pinpoint Test M   PAM B1B44:98 Right Rear Outer Sensor:Component Or System Over Temperature   GO to Pinpoint Test P   PAM B1B46:08 Right Rear Inner Sensor:Bus Signal/Message Failure   GO to Pinpoint Test F   PAM B1B46:1F Right Rear Inner Sensor:Circuit Intermittent   GO to Pinpoint Test F   PAM B1B46:31 Right Rear Inner Sensor:No Signal   GO to Pinpoint Test F   PAM B1B46:96 Right Rear Inner Sensor: Component Internal Failure   GO to Pinpoint Test M   PAM B1B46:98 Right Rear Inner Sensor:Component Or System Over Temperature   GO to Pinpoint Test P   PAM B1B48:08 Left Rear Outer Sensor:Bus Signal/Message Failure   GO to Pinpoint Test G   PAM B1B48:1F Left Rear Outer Sensor:Circuit Intermittent   GO to Pinpoint Test G   PAM B1B48:31 Left Rear Outer Sensor:No Signal   GO to Pinpoint Test G   PAM B1B48:96 Left Rear Outer Sensor: Component Internal Failure   GO to Pinpoint Test M   PAM B1B48:98 Left Rear Outer Sensor:Component Or System Over Temperature   GO to Pinpoint Test P   PAM B1B50:08 Left Rear Inner Sensor:Bus Signal/Message Failure   GO to Pinpoint Test H   PAM B1B50:1F Left Rear Inner Sensor:Circuit Intermittent   GO to Pinpoint Test H   PAM B1B50:31 Left Rear Inner Sensor:No Signal   GO to Pinpoint Test H   PAM B1B50:96 Left Rear Inner Sensor: Component Internal Failure   GO to Pinpoint Test M   PAM B1B50:98 Left Rear Inner Sensor:Component Or System Over Temperature   GO to Pinpoint Test P   PAM B1B57:11 Front Sensors Power Circuit: Circuit Short To Ground   GO to Pinpoint Test B   PAM B1B58:11 Rear Sensors Power Circuit: Circuit Short To Ground   GO to Pinpoint Test C   PAM U0100:00 Lost Communication With ECM/PCM "A": No Sub Type Information   GO to Pinpoint Test R   PAM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information   GO to Pinpoint Test S   PAM U0131:00 Lost Communication With Power Steering Control Module: No Sub-Type Information   GO to Pinpoint Test T   PAM U0138:00 Lost Communication with All Terrain Control Module:No Sub Type Information   GO to Pinpoint Test U   PAM U0140:00 Lost Communication With Body Control Module: No Sub Type Information   GO to Pinpoint Test V   PAM U0146:00 Lost Communication With Gateway "A": No Sub Type Information   GO to Pinpoint Test W   PAM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information   GO to Pinpoint Test X   PAM U0164:00 Lost Communication With HVAC Control Module: No Sub Type Information   GO to Pinpoint Test Y   PAM U0212:00 Lost Communication With Steering Column Control Module: No Sub Type Information   GO to Pinpoint Test AB   PAM U0252:00 Lost Communication With Lighting Control Module- Rear "B": No Sub Type Information   GO to Pinpoint Test AC   PAM U0293:00 Lost Communication with Hybrid/EV Powertrain Control Module:No Sub Type Information   GO to Pinpoint Test R   PAM U0300:57 Internal Control Module Software Incompatibility:Invalid/Incompatible Software Component   GO to Pinpoint Test AG   PAM U0401:00 Invalid Data Received from ECM/PCM A:No Sub Type Information   GO to Pinpoint Test R   PAM U0415:00 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module "A":No Sub Type Information   GO to Pinpoint Test S   PAM U0420:00 Invalid Data Received from Power Steering Control Module "A":No Sub Type Information   GO to Pinpoint Test T   PAM U0422:00 Invalid Data Received From Body Control Module:No Sub Type Information   GO to Pinpoint Test V   PAM U0423:82 Invalid Data Received from Instrument Panel Cluster Control Module:Alive/Sequence Counter Incorrect/Not Updated   GO to Pinpoint Test X   PAM U0424:00 Invalid Data Received From HVAC Control Module:No Sub Type Information   GO to Pinpoint Test Y   PAM U0424:82 Invalid Data Received From HVAC Control Module:Alive/Sequence Counter Incorrect/Not Updated   GO to Pinpoint Test Y   PAM U0485:82 Invalid Data Received From Radio:Alive/Sequence Counter Incorrect/Not Updated   GO to Pinpoint Test AA   PAM U0553:82 Invalid Data Received From Lighting Control Module-Rear "B":Alive/Sequence Counter Incorrect/Not Updated   GO to Pinpoint Test AC   PAM U0554:00 Invalid Data Received From Accessory Protocol Interface Module:No Sub Type Information   GO to Pinpoint Test AD   PAM U0554:82 Invalid Data Received From Accessory Protocol Interface Module:Alive/Sequence Counter Incorrect/Not Updated   GO to Pinpoint Test AD   PAM U0594:00 Invalid Data Received From Hybrid/EV Powertrain Control Module:No Sub Type Information   GO to Pinpoint Test R   PAM U1000:00 Solid State Driver Protection Active -Driver Disabled:No Sub Type Information   GO to Pinpoint Test AE   PAM U2024:41 Control Module Cal-Config Data:General Checksum Failure   GO to Pinpoint Test AF   PAM U2100:00 Initial Configuration Not Complete:No Sub Type Information   GO to Pinpoint Test AF   PAM U2101:00 Control Module Configuration Incompatible:No Sub Type Information   GO to Pinpoint Test AF   PAM U3000:44 Control Module:Data Memory Failure   GO to Pinpoint Test AG   PAM U3000:45 Control Module:Program Memory Failure   GO to Pinpoint Test AG   PAM U3000:46 Control Module:Calibration/Parameter Memory Failure   GO to Pinpoint Test AG   PAM U3000:49 Control Module:Internal Electronic Failure   GO to Pinpoint Test AG Symptom Chart(s)   Symptom Chart: Parking Aid Condition Possible Sources Actions A module does not communicate with the diagnostic scan tool Fuse Wiring, terminals or connectors PAM IPMB   REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing)...

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    Locking and Unlocking the Doors from Inside

    Lincoln Aviator. Locking and Unlocking the Doors from Inside

    Unlock. Lock.

    Locking the Doors

    Press the lock switch on the door interior trim panel. The doors can no longer be released using the exterior door handle switches and the luggage compartment locks.

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