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Home >> Ford >> 2005 >> Escape Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (Engine Controls - Pinpoint Tests - (Hybrid)) >> KD: Electric Exhaust Gas Recirculation (EEGR) System >> Test Procedures

Test Procedures

WARNING: This page is about a different variant/trim than selected.
  1. KD1 DTCS P0400, P0403 AND P1408: EGR CONTROL CIRCUIT - CHECK THE CONNECTION OF THE EEGR HARNESS CONNECTOR TO THE EEGR 
    NOTE: If the DTC is intermittent, wiggle the harness and connectors when taking measurements.
    • Check the connection of the EEGR harness connector to the EEGR.

    Are the connector contacts clean and properly seated? 

    Yes No
    GO to  KD2. REPAIR as necessary.
  2. KD2 CHECK FOR VPWR AT THE EEGR HARNESS CONNECTOR 
    • Key in ON position.
    • EEGR Assembly connector disconnected.
    • Measure the voltage between:
      (+) EEGR Assembly Connector, Harness Side (-) Vehicle Battery
      VPWR - Pin 2, 5 Negative terminal

    Are the voltages greater than 10.5 volts? 

    Yes No
    GO to  KD3. Key in OFF position. REPAIR the open circuit.
  3. KD3 CHECK THE EEGR CIRCUIT(S) FOR AN OPEN IN THE HARNESS 
    • Key in OFF position.
    • PCM connector disconnected.
    • Measure the resistance between:
      (+) EEGR Assembly Connector, Harness Side (-) PCM Connector, Harness Side
      EGRMC1 - Pin 1 EGRMC1 - Pin E4
      EGRMC2 - Pin 3 EGRMC2 - Pin E15
      EGRMC3 - Pin 4 EGRMC3 - Pin E5
      EGRMC4 - Pin 6 EGRMC4 - Pin E16

    Are the resistances less than 5 ohms? 

    Yes No
    GO to  KD4. REPAIR the open circuit.
  4. KD4 CHECK THE EEGR CIRCUIT(S) FOR A SHORT TO GROUND IN THE HARNESS 
    • Measure the resistance between:
      (+) EEGR Assembly Connector, Harness Side (-) Vehicle Battery
      EGRMC1 - Pin 1 Negative terminal
      EGRMC2 - Pin 3 Negative terminal
      EGRMC3 - Pin 4 Negative terminal
      EGRMC4 - Pin 6 Negative terminal

    Are the resistances greater than 10K ohms? 

    Yes No
    GO to  KD5. REPAIR the short circuit to GND.
  5. KD5 CHECK FOR SHORTS BETWEEN CIRCUITS IN THE EEGR HARNESS 
    • Measure the resistance between:
      (+) PCM Connector, Harness Side (-) PCM Connector, Harness Side
      EGRMC3 - Pin E5 EGRMC1 - Pin E4
      EGRMC3 - Pin E5 EGRMC2 - Pin E15
      EGRMC3 - Pin E5 EGRMC4 - Pin E16
      EGRMC1 - Pin E4 EGRMC2 - Pin E15
      EGRMC1 - Pin E4 EGRMC4 - Pin E16
      EGRMC2 - Pin E15 EGRMC4 - Pin E16

    Are the resistances greater than 10K ohms? 

    Yes No
    GO to  KD6. REPAIR the short circuit.
  6. KD6 CHECK THE EEGR CIRCUIT FOR A SHORT TO POWER IN THE HARNESS 
    • Key in ON position.
    • Measure the voltage between:
      (+) EEGR Assembly Connector, Harness Side (-) Vehicle Battery
      EGRMC1 - Pin 1 Negative terminal
      EGRMC2 - Pin 3 Negative terminal
      EGRMC3 - Pin 4 Negative terminal
      EGRMC4 - Pin 6 Negative terminal

    Are the voltages less than 1 V? 

    Yes No
    GO to  KD7. REPAIR the short circuit to PWR.
  7. KD7 CHECK THE EEGR COILS FOR AN OPEN 
    • Key in OFF position.
    • EEGR Assembly connector connected.
    • Measure the resistance between:
      (+) PCM Connector, Harness Side (-) PCM Connector, Harness Side
      EGRMC1 - Pin E4 VPWR - Pin B35, B36
      EGRMC2 - Pin E15 VPWR - Pin B35, B36
      EGRMC3 - Pin E5 VPWR - Pin B35, B36
      EGRMC4 - Pin E16 VPWR - Pin B35, B36

    Are the resistances between 15 ohms - 24 ohms? 

    Yes No
    GO to  KD8. INSTALL a new EEGR assembly.
  8. KD8 CHECK THE EEGR FOR SHORTS TO GROUND 
    • Measure the resistance between:
      (+) PCM Connector, Harness Side (-) Vehicle Battery
      EGRMC1 - Pin E4 Negative terminal
      EGRMC2 - Pin E15 Negative terminal
      EGRMC3 - Pin E5 Negative terminal
      EGRMC4 - Pin E16 Negative terminal

    Are the resistances greater than 1K ohms? 

    Yes No
    For DTCs P0400 or P1408, GO to  KD9. INSTALL a new EEGR assembly.
  9. KD9 CHECK FOR STUCK OR STICKY EGR VALVE OPERATION BY COMPARING ACTUAL MAP VOLTAGE TO MAP_V PID VOLTAGE 
    NOTE: Repair DTCs P0102, P0103, P0107, P0108, P1100, and P1101 first, if present.
    • Key in OFF position.
    • MAP Sensor connector disconnected.
    • Connect a 5 amp fused jumper wire between the following:
      Point A MAP Sensor Connector, Harness Side Point B MAP Sensor Connector, Component Side
      VREF - Pin 2 VREF - Pin 2
      SIGRTN SIGRTN
    • Key on engine running.
    • Measure the voltage between:
      (+) MAP Sensor Connector, Component Side (-) Vehicle Battery
      MAP - Pin 1 Negative terminal

    Is the voltage between 1 V - 2 V? 

    Yes No
    Note the actual MAP voltage values at KOEO, idle, 1,000 and 2,000 RPM. You will use the values for comparison in the following test step.
    GO to  KD10.    		 Key in OFF position.
    CHECK the MAP harness for open and short circuits.
  10. KD10 COMPARE THE ACTUAL MAP VOLTAGE TO THE MAP_V PID VOLTAGE EGR 
    • Key in ON position.
    • Access the PCM and monitor the MAP_V PID.
    • Note the MAP_V PID voltage.
    • Start the engine using the engine running diagnostic mode. Refer to DIAGNOSTIC MODES .
    • Note the MAP_V PID voltage.
    • Increase engine speed to 1,000 RPM.
    • Note the MAP_V PID voltage.
    • Increase engine speed to 2,000 RPM.
    • Note the MAP_V PID voltage.

    Does the MAP_V PID voltage stay within 0.5 volt of the actual MAP voltage? 

    Yes No
    Key in OFF position.
    The fault is not present at this time.
    VERIFY the MAP is properly seated and the vacuum source is not blocked.    		 Key in OFF position.
    GO to  KD11.
  11. KD11 CARRY OUT THE KOER ON DEMAND SELF-TEST 

    Does DTC P1408 reappear? 

    Yes No
    INSTALL a new EEGR assembly. Concern is elsewhere. RETURN to SYMPTOM CHARTS - HYBRID ESCAPE for further direction.
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