Lincoln Aviator 2020-2024 Service Manual / Powertrain / Engine / Engine Emission Control - 3.0L EcoBoost / Diagnosis and Testing - Crankcase Ventilation

Lincoln Aviator: Engine Emission Control - 3.0L EcoBoost / Diagnosis and Testing - Crankcase Ventilation

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
PCM	P04DB:00	Crankcase Ventilation System Disconnected: No Sub Type Information	GO to Pinpoint Test HG
PCM	P051A:00	Crankcase Pressure Sensor A Circuit: No Sub Type Information	GO to Pinpoint Test HG
PCM	P051B:00	Crankcase Pressure Sensor Circuit Range/Performance: No Sub Type Information	GO to Pinpoint Test HG
PCM	P051C:00	Crankcase Pressure Sensor Circuit Low: No Sub Type Information	GO to Pinpoint Test HG
PCM	P051D:00	Crankcase Pressure Sensor Circuit High: No Sub Type Information	GO to Pinpoint Test HG
PCM	P051E:00	Crankcase Pressure Sensor A Circuit Intermittent/Erratic: No Sub Type Information	GO to Pinpoint Test HG
PCM	P2282:00	Air Leak Between Throttle Body And Intake Valve: No Sub Type Information	GO to Pinpoint Test HG
PCM	U060E:00	Lost Communication With Crankcase Pressure Sensor: No Sub Type Information	GO to Pinpoint Test HG

Global Customer Symptom Code (GCSC) 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).

Global Customer Symptom Code Chart

Customer Symptom	Action
Start/Run/Move > Starting > No Crank > Always	GO to Pinpoint Test HG
Start/Run/Move > Starting > Slow Crank/Battery > Always	GO to Pinpoint Test HG
Start/Run/Move > Starting > Hard Start/Long Crank > Always	GO to Pinpoint Test HG
Start/Run/Move > Dipstick > Engine Oil > Missing	GO to Pinpoint Test HG
Start/Run/Move > Fluids > Engine Oil > Consumption	GO to Pinpoint Test HG
Start/Run/Move > Fluids > Engine Oil > Visible Leak	GO to Pinpoint Test HG
Driving Performance > Runs Rough > Acceleration > Always	GO to Pinpoint Test HG
Driving Performance > Runs Rough > Cruise/ Steady Speed > Always	GO to Pinpoint Test HG
Driving Performance > Runs Rough > Deceleration > Always	GO to Pinpoint Test HG
Driving Performance > Runs Rough > All Running Modes > Always	GO to Pinpoint Test HG
Driving Performance > Idle Quality > Fast > Always	GO to Pinpoint Test HG
Driving Performance > Idle Quality > Rolling > Always	GO to Pinpoint Test HG
Driving Performance > Idle Quality > Slow > Always	GO to Pinpoint Test HG
Driving Performance > Idle Quality > Slow Return > Always	GO to Pinpoint Test HG
Driving Performance > Idle Quality > Rough > Always	GO to Pinpoint Test HG
Driving Performance > Idle Quality > Stationary Elevated Idle Control > Performance/Function	GO to Pinpoint Test HG
Driving Performance > Stalls/Quits > At Idle > Always	GO to Pinpoint Test HG
Driving Performance > Stalls/Quits > Acceleration > Always	GO to Pinpoint Test HG
Driving Performance > Stalls/Quits > Cruise/ Steady Speed > Always	GO to Pinpoint Test HG
Driving Performance > Spark Knock > Acceleration > Always	GO to Pinpoint Test HG
Driving Performance > Spark Knock > Cruise/ Steady Speed > Always	GO to Pinpoint Test HG
Driving Performance > Poor Fuel Economy > City Driving > Loaded	GO to Pinpoint Test HG
Driving Performance > Poor Fuel Economy > Highway Driving > Loaded	GO to Pinpoint Test HG
Driving Performance > Poor Fuel Economy > Combined > Unloaded	GO to Pinpoint Test HG
Driving Performance > Hesitates/Stumble > Cruise/ Steady Speed > Always	GO to Pinpoint Test HG
Driving Performance > Engine Surge > At Idle > Always	GO to Pinpoint Test HG
Driving Performance > Engine Surge > Acceleration > Always	GO to Pinpoint Test HG
Driving Performance > Engine Surge > Cruise/ Steady Speed > Always	GO to Pinpoint Test HG
Driving Performance > Engine Surge > Deceleration > Always	GO to Pinpoint Test HG

Pinpoint Tests

PINPOINT TEST HG : POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM

Normal Operation and Fault Conditions

Refer to the DTC Fault Trigger Conditions.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
PCM P04DB:00	Crankcase Ventilation System Disconnected: No Sub Type Information	Sets when PCM detects the crankcase pressure sensor is disconnected. Verify the integrity of the PCV system.
PCM P051A:00	Crankcase Pressure Sensor "A" Circuit: No Sub Type Information	Sets when PCM detects the crankcase pressure sensor voltage is greater than or less than a calibrated value.
PCM P051B:00	Crankcase Pressure Sensor "A" Circuit Range/Performance: No Sub Type Information	Sets when PCM detects the crankcase pressure sensor is greater than or less than an expected value for the current operating conditions.
PCM P051C:00	Crankcase Pressure Sensor "A" Circuit Low: No Sub Type Information	Sets when PCM detects the crankcase pressure sensor voltage is less than 1 V.
PCM P051D:00	Crankcase Pressure Sensor "A" Circuit High: No Sub Type Information	Sets when PCM detects the crankcase pressure sensor voltage is greater than 4.9 V.
PCM P051E:00	Crankcase Pressure Sensor "A" Circuit Intermittent/Erratic: No Sub Type Information	Sets when PCM detects the crankcase pressure sensor voltage is intermittently above the maximum value or intermittently below the minimum value for a calibrated threshold .
PCM P2282:00	Air Leak Between Throttle Body and Intake Valve: No Sub Type Information	Sets when PCM detects an air leak that exceeds a calibrated limit for greater than 5 seconds. If the airflow entering the engine exceeds the airflow through the throttle, a leak is detected and this diagnostic fails. Verify the integrity of the PCV system. Refer to Positive Crankcase Ventilation (PCV) System for aditional information.
PCM U060E:00	Lost Communication With Crankcase Pressure Sensor: No Sub Type Information	Sets when PCM no longer receives a signal from the crankcase pressure sensor.

Possible Sources

Crankcase pressure sensor circuitry concern
Intake air system concern
Vacuum hose
Oil level indicator O-ring seal
Oil cap
PCV hose
PCV valve (6A666)
Crankcase pressure sensor (6758)
PCM (12A650)

Internet Explorer version 11 or greater is required to perform this Pinpoint Test.

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...

Diagnosis and Testing - Engine Emission Control

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. For information about these, REFER to: Diagnostic Methods (100-00 General Information, Description and Operation)...

Other information:

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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.