Ford Escape Manuals

Ford Escape: Intake Air Distribution and Filtering / Diagnosis and Testing - Intake Air Flow

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 P0505:00 Idle Control System: No Sub Type Information GO to Pinpoint Test HU
PCM P0506:00 Idle Control System - RPM Lower Than Expected: No Sub Type Information GO to Pinpoint Test HU
PCM P0507:00 Idle Control System - RPM Higher Than Expected: No Sub Type Information GO to Pinpoint Test HU
PCM P050A:00 Cold Start Idle Control System Performance: No Sub Type Information GO to Pinpoint Test HU
PCM P050B:00 Cold Start Ignition Timing Performance 'A': No Sub Type Information GO to Pinpoint Test HU
PCM P050E:00 Cold Start Engine Exhaust Temperature Too Low: No Sub Type Information GO to Pinpoint Test HU
PCM P115E:00 Throttle Actuator Control Throttle Body Air Flow Trim at Max Limit: No Sub Type Information GO to Pinpoint Test HU
PCM P1548:00 Engine Air Filter Restriction: No Sub Type Information GO to Pinpoint Test HU

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 > Starting > No Crank > Always GO to Pinpoint Test HU
Start/Run/Move > Starting > Slow Crank/Battery > Always GO to Pinpoint Test HU
Start/Run/Move > Starting > Hard Start/Long Crank > Always GO to Pinpoint Test HU
Start/Run/Move > Starting > Ready to Drive (hyb/EV) > Inoperative GO to Pinpoint Test HU
Start/Run/Move > Starting > Auto-Start-Stop > Inoperative GO to Pinpoint Test HU
Driving Performance > Idle Quality > Fast > Always GO to Pinpoint Test HU
Driving Performance > Idle Quality > Slow > Always GO to Pinpoint Test HU
Driving Performance > Idle Quality > Slow Return > Always GO to Pinpoint Test HU
Driving Performance > Stalls/Quits > Deceleration > Always GO to Pinpoint Test HU
Driving Performance > Lack/Loss of Power > Acceleration > Always GO to Pinpoint Test HU
Driving Performance > Lack/Loss of Power > Cruise/ Steady Speed > Always GO to Pinpoint Test HU
Driving Performance > Engine Surge > Cruise/ Steady Speed > Always GO to Pinpoint Test HU

Pinpoint Tests


PINPOINT TEST HU: INTAKE AIR SYSTEMS
Introduction

Normal Operation and Fault Conditions

Refer to the DTC Fault Trigger Conditions.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0505:00 Idle Control System: No Sub Type Information Sets when the PCM detects the desired RPM could not be reached or controlled during the KOER self-test. This DTC may be accompanied by other Diagnostic Trouble Codes (DTCs). Diagnose other Diagnostic Trouble Codes (DTCs) first. If no other Diagnostic Trouble Codes (DTCs) are present, inspect the intake air system for air restrictions, vacuum leaks, and damage. If no concerns are present, clear the DTC and carry out the KOER , self-test.
PCM P0506:00 Idle Control System - RPM Lower Than Expected: No Sub Type Information Sets when the PCM detects the engine idle speed is less than the desired RPM . This DTC may be accompanied by other Diagnostic Trouble Codes (DTCs). Diagnose other Diagnostic Trouble Codes (DTCs) first. If no other Diagnostic Trouble Codes (DTCs) are present, inspect the intake air system for air restrictions, vacuum leaks, and damage. If no concerns are present, clear the DTC and carry out the KOER , self-test.
PCM P0507:00 Idle Control System - RPM Higher Than Expected: No Sub Type Information Sets when the PCM detects the engine idle speed is greater than the desired RPM . This DTC may be accompanied by other Diagnostic Trouble Codes (DTCs). Diagnose other Diagnostic Trouble Codes (DTCs) first. If no other Diagnostic Trouble Codes (DTCs) are present, inspect the intake air system for air restrictions, vacuum leaks, and damage. If no concerns are present, clear the DTC and carry out the KOER , self-test.
PCM P050A:00 Cold Start Idle Control System Performance: No Sub Type Information Sets when the PCM detects the difference between desired and actual engine speed exceeds the calibrated threshold. Disregard the freeze frame data. Freeze frame data does not apply to the cold start monitor. This DTC is informational only and may be accompanied by other Diagnostic Trouble Codes (DTCs). Diagnose other Diagnostic Trouble Codes (DTCs) first. If no other Diagnostic Trouble Codes (DTCs) are present, inspect the intake air system for air restrictions, vacuum leaks, and damage. If no concerns are present, clear the Diagnostic Trouble Codes (DTCs) and verify the engine coolant temperature is below 37.8°C (100°F). Allow the vehicle to soak for 2 to 3 hours if necessary for the engine coolant temperature to fall below 37.8°C (100°F). Start the engine without touching the accelerator pedal and allow the engine to idle for 6 minutes in park. If no Diagnostic Trouble Codes (DTCs) are present and the MIL is not illuminated after idling for 6 minutes, carry out the KOER , self-test to confirm that no Diagnostic Trouble Codes (DTCs) are present and the repair is complete.
PCM P050B:00 Cold Start Ignition Timing Performance 'A': No Sub Type Information Sets when the PCM detects the difference between desired and commanded spark timing exceeds the calibrated threshold. Disregard the freeze frame data. Freeze frame data does not apply to the cold start monitor. This DTC is informational only and may be accompanied by other Diagnostic Trouble Codes (DTCs). Diagnose other Diagnostic Trouble Codes (DTCs) first. If no other Diagnostic Trouble Codes (DTCs) are present, inspect the intake air system for air restrictions, vacuum leaks, and damage. If no concerns are present, clear the Diagnostic Trouble Codes (DTCs) and verify the engine coolant temperature is below 37.8°C (100°F). Allow the vehicle to soak for 2 to 3 hours if necessary for the engine coolant temperature to fall below 37.8°C (100°F). Start the engine without touching the accelerator pedal and allow the engine to idle for 6 minutes in park. If no Diagnostic Trouble Codes (DTCs) are present and the MIL is not illuminated after idling for 6 minutes, carry out the KOER , self-test to confirm that no Diagnostic Trouble Codes (DTCs) are present and the repair is complete.
PCM P050E:00 Cold Start Engine Exhaust Temperature Too Low: No Sub Type Information Sets when the PCM detects the catalyst temperature ratio exceeds the calibrated value and the MIL illuminates. The PCM calculates the actual catalyst warm up temperature during a cold start. The PCM then compares the actual catalyst temperature to the expected catalyst temperature model. The difference between the actual and expected temperatures is a ratio. This DTC sets when this ratio exceeds the calibrated value and the malfunction indicator lamp (MIL) illuminates. Disregard the freeze frame data. Freeze frame data does not apply to the cold start monitor. This DTC is informational only and may be accompanied by other Diagnostic Trouble Codes (DTCs). Diagnose other Diagnostic Trouble Codes (DTCs) first. If no other Diagnostic Trouble Codes (DTCs) are present, inspect the intake air system for air restrictions, vacuum leaks, and damage. If no concerns are present, clear the Diagnostic Trouble Codes (DTCs) and verify the engine coolant temperature is below 37.8°C (100°F). Allow the vehicle to soak for 2 to 3 hours if necessary for the engine coolant temperature to fall below 37.8°C (100°F). Start the engine without touching the accelerator pedal and allow the engine to idle for 6 minutes in park. If no Diagnostic Trouble Codes (DTCs) are present and the MIL is not illuminated after idling for 6 minutes, carry out the KOER , self-test to confirm that no Diagnostic Trouble Codes (DTCs) are present and the repair is complete.
PCM P115E:00 Throttle Actuator Control Throttle Body Air Flow Trim at Max Limit: No Sub Type Information Sets when the PCM detects the maximum allowed compensation is reached and is no longer able to compensate for buildup. Install a new throttle body. Refer to the appropriate 303-04 section, Fuel Charging and Controls.
PCM P1548:00 Engine Air Filter Restriction: No Sub Type Information Sets when the PCM detects the airflow is out of range at various engine speeds and during WOT operation when compared to the calibrated value. If this DTC sets, inspect the intake air system and replace the air filter if no restrictions are found. Refer to the appropriate 303-12 section, Intake Air Distribution and Filtering for air filter replacement.

Possible Sources

  • Intake air system concern
  • Exhaust system concern
  • IMRC circuitry concern
  • Air cleaner assembly (including air cleaner element) (9600)
  • Air inlet tube (9F843)
  • Clean air tube hose and resonator (9R504) and (9F593)
  • IMRC solenoid (9J559)
  • IMRC sensor (9P471)
  • Throttle body assembly (9E926)
  • PCM (12A650)

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    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)...

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    Master Access Code

    What Is the Master Access Code

    The master access code is a factory-set five-digit entry code. You can operate the keypad with the master access code at any time. The master access code is on the owner’s wallet card in the glove box and is available from an authorized dealer.

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    To display the factory-set code in the information display:

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