Ford Escape: Engine Emission Control / Diagnosis and Testing

Diagnostic Trouble Code (DTC) Chart

The diagnosis in this manual assumes a certain level of skill and knowledge of Ford-approved diagnostic procedures.
REFER TO: Diagnostic Methods (100-00 General Information, Description and Operation).

Module	Trouble Code	Description	Action
PCM	P04DB:00	Positive Crankcase Ventilation System Inoperative: No Sub-type Information	GO to HG Specific Test
PCM	P2282:00	Air Leak Between Throttle Body and Intake Valves, Bank 1: No Sub-type Information	GO to HG Specific Test

Global Customer Symptom Codes (GCSC) Table

Symptom	Action
Start/Run/Move > Dipstick > Engine Oil > Missing	GO to HG Specific Test
Start/Run/Move > Fluids > Engine Oil > Consumption	GO to HG Specific Test
Start/Run/Move > Fluids > Engine Oil > Visible Leak	GO to HG Specific Test
Drivability > Rough Running > Acceleration > Always	GO to HG Specific Test
Drivability > Rough Running > Cruise/Steady Speed > Always	GO to HG Specific Test
Drivability > Rough Running > Deceleration > Always	GO to HG Specific Test
Drivability > Rough Running > All Operating Modes > Always	GO to HG Specific Test
Drivability > Idle Quality > Rough > Always	GO to HG Specific Test
Drivability > Idle Quality > Rolling > Always	GO to HG Specific Test
Drivability > Idle Quality > Slow > Always	GO to HG Specific Test
Drivability > Idle Quality > Rough > Always	GO to HG Specific Test
Drivability > Idle Quality > Fast Idle Governor > Inoperative	GO to HG Specific Test
Drivability > Stalls/Stops > At Idle > Always	GO to HG Specific Test
Drivability > Stalls/Exits > Acceleration > Always	GO to HG Specific Test
Drivability > Stalls/Exits > Cruise/Steady Speed > Always	GO to HG Specific Test
Drivability > Spark Knock > Acceleration > Always	GO to HG Specific Test
Drivability > Spark Knock > Cruise/Steady Speed > Always	GO to HG Specific Test
Drivability > Poor Fuel Economy > City Driving > Light Load	GO to HG Specific Test
Drivability > Poor Fuel Economy > Highway Driving > Continuous	GO to HG Specific Test
Drivability > Poor Fuel Economy > Combined > Continuous	GO to HG Specific Test
Drivability > Hesitation/Stumble > Cruise/Steady Speed > Always	GO to HG Specific Test
Drivability > Engine Surge > At Idle > Always	GO to HG Specific Test
Drivability > Engine Surge > Acceleration > Always	GO to HG Specific Test
Drivability > Engine Surge > Cruise/Steady Speed > Always	GO to HG Specific Test
Drivability > Engine Surge > Deceleration > Always	GO to HG Specific Test

Pinpoint Tests

HG SPECIFIC TEST: POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM

Introduction

Normal Operation and Fault Symptoms

Refer to DTC Fault Trigger Conditions.

DTC Fault Trigger Conditions

Trouble Code	Description	Fault Trigger Condition
PCM P04DB:00	Positive Crankcase Ventilation System Inoperative: No Sub-type Information	Set when the PCM detects that the crankcase pressure sensor is disconnected. Check the PCV system for integrity.
PCM P2282:00	Air Leak Between Throttle Body and Intake Valves, Bank 1: No Sub-type Information	Set when the PCM detects an air leak that exceeds the calibrated limit for more than 5 seconds. If the airflow entering the engine exceeds the airflow passing through the throttle, a leak is detected and this diagnostic fails. Check the PCV system for integrity. Refer to Positive Crankcase Ventilation (PCV) System for additional information.

Possible Sources

Crankcase Pressure Sensor Circuit Concern
Air Intake System Concern
Vacuum Hose
Oil Level Indicator O-Ring
Oil Filler Cap
PVC Hose
PCV Valve (6A666)
Crankcase pressure sensor (6758)
PCM (12A650)

Diagnosis and Testing - Positive Crankcase Ventilation