Lincoln Aviator 2020-2026 Service Manual / Powertrain / Engine / Engine Emission Control - 3.0L EcoBoost / Description and Operation - Engine Emission Control - System Operation and Component Description

Lincoln Aviator: Engine Emission Control - 3.0L EcoBoost / Description and Operation - Engine Emission Control - System Operation and Component Description

System Operation

Positive Crankcase Ventilation (PCV) System

The PCV system circulates crankcase gases through the intake air system into the engine where they are burned. The PCV system regulates the amount of ventilated air and blowby gases to the intake manifold.

The PCV system equipped with a removable PCV valve, a PCV valve integral to the valve cover, or a crankcase ventilation oil separator, as part of the PCV system. The PCV system on some vehicles will include a crankcase pressure sensor to detect a disconnection of the fresh air hose.

The PCV systems comply with OBD PCV monitoring requirements to prevent accidental disconnection from the valve cover. For more information about the PCV monitor and crankcase pressure sensor, refer to Positive Crankcase Ventilation (PCV) System Monitor in this section.

Positive Crankcase Ventilation (PCV) System Monitor

The PCV system monitor consists of a modified PCV system design. The PCV system is designed to prevent accidental disconnection. High retention force molded plastic lines are used from the valve cover to the intake manifold. The diameter of the lines and the intake manifold entry fitting are increased so that disconnection of the lines may cause an engine to stall. In the event the vehicle does not stall if the line between the intake manifold and PCV system is disconnected, the vehicle has a large vacuum leak that causes the vehicle to run lean at idle. The lean condition illuminates the MIL and stores a lean bank 1 or bank 2 DTC.

The PCV monitor sets a DTC if the PCV vacuum hose is disconnected, or if a large air leak between the throttle body (TB) and intake valves is present. An idle speed symptom may be present when the DTC is set.

The PCV system includes a crankcase pressure sensor to detect a disconnection of the fresh air hose. A disconnection of the fresh air hose would allow the discharge of crankcase vapor into the atmosphere while the engine was under boost. The fresh air hose connects the intake air system to the valve cover, with the crankcase pressure sensor mounted in the fresh air hose. The PCV monitor will detect a fresh air hose disconnection at the intake air system or the valve cover, by monitoring crankcase pressure sensor changes during engine cranking, and driving with higher intake airflow.

For additional PCV information, refer to Positive Crankcase Ventilation (PCV) System in this section

Component Description

Crankcase Pressure Sensor

The crankcase pressure sensor measures the vacuum in the PCV system. A change in the PCV system vacuum greater than a calibrated threshold indicates the PCV system is disconnected and will set a DTC. The crankcase pressure sensor is located in the PCV system hose between the intake air system air cleaner and the engine crankcase PCV inlet.

On some vehicles, the CKCP has one digital signal output from the sensor. There is one reference voltage circuit and one signal return circuit for the sensor. For all others, the CKCP has one analog signal output from the sensor. There is one reference voltage circuit and one signal return circuit for the sensor.

Description and Operation - Engine Emission Control - Component Location

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Diagnosis and Testing - Crankcase Ventilation

Other information:

Lincoln Aviator 2020-2026 Service Manual: Diagnosis and Testing - Direct Current/Direct Current (DC/DC) Converter Control Module

Lincoln Aviator 2020-2026 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 APIM C1001:01 Vision System Camera:General Electrical Failure GO to Pinpoint Test A APIM C1001:01 Vision System Camera:General Electrical Failure GO to Pinpoint Test J APIM C1001:02 Vision System Camera:General Signal Failure GO to Pinpoint Test A APIM C1001:1C Vision System Camera:Circuit Voltage Out Of Range GO to Pinpoint Test A APIM C1001:4B Vision System Camera:Over Temperature GO to Pinpoint Test H APIM C1001:55 Vision System Camera:Not Configured GO to Pinpoint Test I APIM C1001:81 Vision System Camera:Invalid Serial Data Received GO to Pinpoint Test A APIM C1001:87 Vision System Camera:Missing Message GO to Pinpoint Test A IPMB B115E:31 Camera Module:No Signal GO to Pinpoint Test L IPMB B115E:49 Camera Module:Internal Electronic Failure GO to Pinpoint Test T IPMB B12BE:31 Left Front Camera:No Signal GO to Pinpoint Test N IPMB B12BE:49 Left Front Camera:Internal Electronic Failure GO to Pinpoint Test U IPMB B12BF:31 Right Front Camera:No Signal GO to Pinpoint Test O IPMB B12BF:49 Right Front Camera:Internal Electronic Failure GO to Pinpoint Test V IPMB B148E:31 Front Camera:No Signal GO to Pinpoint Test M IPMB B148E:49 Front Camera:Internal Electronic Failure GO to Pinpoint Test W IPMB B14A5:11 Multi-Camera View Switch:Circuit Short To Ground GO to Pinpoint Test P IPMB C1001:78 Vision System Camera:Alignment Or Adjustment Incorrect GO to Pinpoint Test X IPMB U0100:00 Lost Communication With ECM/PCM "A":No Sub Type Information GO to Pinpoint Test Y IPMB U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module:No Sub Type Information GO to Pinpoint Test Z IPMB U0121:87 Lost Communication With Anti-Lock Brake System (ABS) Control Module "A":Missing Message GO to Pinpoint Test Z IPMB U0131:00 Lost Communication With Power Steering Control Module:No Sub-Type Information GO to Pinpoint Test AA IPMB U0131:87 Lost Communication With Power Steering Control Module "A":Missing Message GO to Pinpoint Test AA IPMB U0138:00 Lost Communication with All Terrain Control Module:No Sub Type Information GO to Pinpoint Test AB IPMB U0140:00 Lost Communication With Body Control Module:No Sub Type Information GO to Pinpoint Test AC IPMB U0146:00 Lost Communication With Gateway "A":No Sub Type Information GO to Pinpoint Test AD IPMB U0212:00 Lost Communication With Steering Column Control Module:No Sub Type Information GO to Pinpoint Test AJ IPMB U0253:87 Lost Communication With Accessory Protocol Interface Module:Missing Message GO to Pinpoint Test AK IPMB U0293:00 Lost Communication with Hybrid/EV Powertrain Control Module:No Sub Type Information GO to Pinpoint Test Y IPMB U0300:57 Internal Control Module Software Incompatibility:Invalid/Incompatible Software Component GO to Pinpoint Test AN IPMB U0401:00 Invalid Data Received from ECM/PCM A:No Sub Type Information GO to Pinpoint Test Y IPMB U0415:00 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module "A":No Sub Type Information GO to Pinpoint Test Z IPMB U0420:00 Invalid Data Received from Power Steering Control Module "A":No Sub Type Information GO to Pinpoint Test AA IPMB U0422:00 Invalid Data Received From Body Control Module:No Sub Type Information GO to Pinpoint Test AC IPMB U0423:82 Invalid Data Received from Instrument Panel Cluster Control Module:Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test AE IPMB U0424:00 Invalid Data Received From HVAC Control Module:No Sub Type Information GO to Pinpoint Test AF IPMB U0424:82 Invalid Data Received From HVAC Control Module:Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test AF IPMB U0428:00 Invalid Data Received From Steering Angle Sensor Module:No Sub Type Information GO to Pinpoint Test AG IPMB U0485:82 Invalid Data Received From Radio:Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test AH IPMB U0553:82 Invalid Data Received From Lighting Control Module-Rear "B":Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test AI IPMB U0554:00 Invalid Data Received From Accessory Protocol Interface Module:No Sub Type Information GO to Pinpoint Test AK IPMB U0554:82 Invalid Data Received From Accessory Protocol Interface Module:Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test AK IPMB U0594:00 Invalid Data Received From Hybrid/EV Powertrain Control Module:No Sub Type Information GO to Pinpoint Test Y IPMB U1000:11 Solid State Driver Protection Active -Driver Disabled:Circuit Short To Ground GO to Pinpoint Test AL IPMB U2024:41 Control Module Cal-Config Data:General Checksum Failure GO to Pinpoint Test AM IPMB U2100:00 Initial Configuration Not Complete:No Sub Type Information GO to Pinpoint Test AM IPMB U2101:00 Control Module Configuration Incompatible:No Sub Type Information GO to Pinpoint Test AM IPMB U3000:42 Control Module:General Memory Failure GO to Pinpoint Test AN IPMB U3000:49 Control Module:Internal Electronic Failure GO to Pinpoint Test AN Symptom Chart(s) Rear Only Parking Aid Camera Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...

Children and Airbags

WARNING: Airbags can kill or injure a child in a child restraint. Never place a rear-facing child restraint in front of an active airbag. If you must use a forward-facing child restraint in the front seat, move the seat upon which the child restraint is installed all the way back.

Lincoln Aviator. Children and Airbags