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Home >> Chrysler >> 2006 >> PT Cruiser Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 1.6L Engine - DTCS P0303 To P0629 >> Diagnosis And Testing >> P0459-EVAP Purge SOLENIOD Circuit High >> Diagnostic Test

Diagnostic Test

  1. 1)  GOOD TRIP INDICATOR 

    Turn the ignition on.

    With the scan tool, read DTC's.

    Does the Good Trip Indicator display NO? 

    Yes 

    1. Go To  2).

    No 

    1. Refer to the INTERMITTENT CONDITION diagnostic procedure.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .
  2. 2)  (K52) EVAP PURGE SOLENOID CONTROL CIRCUIT FOR A SHORT TO BATTERY VOLTAGE 
    Fig 1: CHECKING EVAP PURGE SOLENOID CONTROL CIRCUIT
    GC0041910Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Disconnect the EVAP Purge Solenoid harness connector.

    Disconnect the Powertrain Control Module harness connectors.

    Turn ignition on, engine not running.

    Using a 12-volt test light connected to ground, probe the (K52) EVAP Purge Solenoid Control circuit.

    Does the test light illuminate brightly? 

    Yes 

    1. Repair the short to voltage in the (K52) EVAP Purge Solenoid Control circuit.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .

    No 

    1. Go To  3).
  3. 3)  CHECKING THE EVAP PURGE SOLENOID 
    Fig 2: MEASURING RESISTANCE OF THE EVAP PURGE SOLENOID CONTROL CIRCUIT
    GC0041911Courtesy of DAIMLERCHRYSLER CORP.

    Measure the resistance between the terminals of the EVAP Purge Solenoid connector.

    Is the resistance between 10.0 and 15.0 ohms? 

    No 

    1. Replace the EVAP Purge Solenoid.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .

    Yes 

    1. Go To  4).
  4. 4)  CHECKING EVAP PURGE SOLENOID FOR VACUUM LEAK 

    Disconnect the vacuum hoses at the EVAP Purge Solenoid.

    Using a hand vacuum pump, apply 10 inches of vacuum to the EVAP Purge Solenoid vacuum source port on the component side.

    Does the EVAP Purge Solenoid hold vacuum? 

    Yes 

    1. Go To  5).

    No 

    1. Replace the EVAP Purge Solenoid.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .
  5. 5)  CHECKING EVAP PURGE SOLENOID STUCK CLOSED 

    Using a hand vacuum pump, apply 10 inches of vacuum to the EVAP Purge Solenoid vacuum source port on the component side.

    Turn the ignition on.

    Observe the vacuum gauge.

    With the scan tool, actuate the EVAP Purge Solenoid.

    Does the vacuum drop when the solenoid is actuated? 

    Yes 

    1. Go To  6).

    No 

    1. Replace the EVAP Purge Solenoid.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .
  6. 6)  PCM 
    NOTE: Before Continuing: Disconnect the PCM harness connector and check the related wiring terminals for corrosion, damage or terminal push out. Repair as necessary.

    Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and Ground circuits.

    If there are no possible cause remaining, view repair. 

    Repair 

    1. Replace and program the Powertrain Control Module in accordance with the Service Information. (Refer to STANDARD PROCEDURE - PCM/ECM/SKREEM PROGRAMMING) .
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .
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