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Home >> Chrysler >> 2006 >> PT Cruiser Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 1.6L Engine - DTCS P2138 To U0168 & Verification Tests >> Diagnosis And Testing >> P2304-Ignition Coil #2 Circuit High >> Diagnostic Test

Diagnostic Test

  1. 1)  GOOD TRIP INDICATED 
    NOTE: Record the Freeze Frame Information that set along with the DTC.

    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 INTERMITTENT AND POOR CONNECTIONS diagnostic procedure.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST)  .
  2. 2)  ASD RELAY OUTPUT CIRCUIT 
    Fig 1: CHECKING ASD RELAY OUTPUT CIRCUIT
    GC0042047Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Disconnect the Ignition Coil harness connector.

    Turn the ignition on.

    With the scan tool, actuate the ASD Relay.

    Using a 12 volt test light connected to ground, probe the (K344) ASD Relay Output circuit in the Ignition Coil harness connector.

    Does the test light illuminate brightly? 

    Yes 

    1. Go To  3).

    No 

    1. Repair the (K344) ASD Relay Output circuit.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST)  .
  3. 3)  IGNITION COIL 
    Fig 2: CHECKING IGNITION COIL CONTROL CIRCUIT
    GC0042048Courtesy of DAIMLERCHRYSLER CORP.

    Using a 12-volt test light connected to 12-volts, probe the (K17) Ignition Coil Control circuit.

    Crank the engine for 5 second while observing the test light.

    Does the test light blink/flicker? 

    Yes 

    1. Replace the Ignition Coil.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST)  .

    No 

    1. Go To  4).
  4. 4)  IGNITION COIL CONTROL CIRCUIT OPEN 
    Fig 3: CHECKING IGNITION COIL CONTROL CIRCUIT FOR OPEN
    GC0042049Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Disconnect the PCM harness connector.

    Measure the resistance of the (K17) Ignition Coil Control circuit between the Ignition Coil harness connector and the PCM harness connector.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Go To  5).

    No 

    1. Repair the (K17) Ignition Coil Control circuit for a open.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST)  .
  5. 5)  IGNITION COIL CONTROL CIRCUIT FOR A SHORT TO ASD OUTPUT CIRCUIT 
    Fig 4: CHECKING IGNITION COIL CONTROL CIRCUIT FOR A SHORT TO ASD OUTPUT CIRCUIT
    GC0042050Courtesy of DAIMLERCHRYSLER CORP.

    Measure the resistance between the (K17) Ignition Coil Control circuit and the (K344) ASD Relay Output circuit in the Ignition Coil harness connector.

    Is the resistance below 100 ohms? 

    Yes 

    1. Repair the (K17) Ignition Coil Control circuit for a short to the (K344) ASD Output circuit.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST)  .

    No 

    1. Go To  6).
  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 causes remaining, view repair. 

    Repair 

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