Lincoln Corsair Manuals

Lincoln Corsair: Engine Emission Control - 2.0L EcoBoost (177kW/240PS) – MI4 / 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).


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 'A' Circuit Range/Performance: No Sub Type Information GO to Pinpoint Test HG
PCM P051C:00 Crankcase Pressure Sensor 'A' Circuit Low: No Sub Type Information GO to Pinpoint Test HG
PCM P051D:00 Crankcase Pressure Sensor 'A' 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 Valves Bank 1: 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).


Symptom Action
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 > Rough > Always GO to Pinpoint Test HG
Driving Performance > Idle Quality > Stationary Elevated Idle Control > Inoperative 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 > Unloaded GO to Pinpoint Test HG
Driving Performance > Poor Fuel Economy > Highway Driving > Unloaded 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
Introduction

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 Valves Bank 1: 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)

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