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Home >> Chrysler >> 2006 >> PT Cruiser Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 1.6L Engine - DTCS P127D To P2135 >> Diagnosis And Testing >> P170E-Clutch Pedal Circuit High >> Diagnostic Test

Diagnostic Test

  1. 1)  DTC IS ACTIVE 

    Ignition on, engine not running.

    With the scan tool, Clear DTCs in the Gateway.

    Press and release the clutch pedal several times.

    With the scan tool, select View DTCs.

    Is the status Active for this DTC? 

    Yes 

    1. Go To  2).

    No 

    1. Refer to the INTERMITTENT CONDITION diagnostic procedure.
    2. Perform the GATEWAY VERIFICATION TEST - VER. 1. (Refer to STANDARD PROCEDURE - GATEWAY VERIFICATION TEST - VER 1)
  2. 2)  (T141) CLUTCH INTERLOCK SWITCH SIGNAL CIRCUIT VOLTAGE 
    Fig 1: CHECKING CLUTCH INTERLOCK SWITCH SIGNAL CIRCUIT
    GC0041997Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Disconnect the Clutch Interlock Switch connector.

    Turn the ignition on.

    Measure the voltage of the (T141) Clutch Interlock Switch Signal circuit in the Clutch Interlock Switch harness connector.

    Is the voltage between 4.5 and 5.5 volts? 

    Yes 

    1. Go to  3).

    No 

    1. Go to  5).
  3. 3)  (Z902) GROUND CIRCUIT OPEN OR HIGH RESISTANCE 
    Fig 2: CHECKING CLUTCH INTERLOCK SWITCH GROUND CIRCUIT
    GC0041998Courtesy of DAIMLERCHRYSLER CORP.

    Using a 12 volt test light connected to 12 volts, check the (Z902) Ground circuit between the Clutch Interlock Switch harness connector.

    NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.

    Is the test light illuminated and bright? 

    Yes 

    1. Go to  4).

    No 

    1. Repair the (Z902) Ground for an open circuit or high resistance.
    2. Perform the GATEWAY VERIFICATION TEST - VER. 1. (Refer to STANDARD PROCEDURE - GATEWAY VERIFICATION TEST - VER 1)
  4. 4)  CLUTCH INTERLOCK SWITCH 
    Fig 3: CHECKING CLUTCH INTERLOCK SWITCH
    GC0041999Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Connect a jumper wire between the (Z902) Ground circuit and the (T141) Clutch Interlock Switch Signal circuit in the Clutch Interlock Switch harness connector.

    Turn the ignition on.

    With the scan tool, monitor the Clutch Interlock status.

    NOTE: The scan tool should display the Clutch Interlock status as pressed with the jumper wire in place and not pressed with the jumper wire removed.

    Does the scan tool display the status as described above? 

    Yes 

    1. Replace the Clutch Interlock Switch in accordance with the Service Information.
    2. Perform the GATEWAY VERIFICATION TEST - VER. 1. (Refer to STANDARD PROCEDURE - GATEWAY VERIFICATION TEST - VER 1)

    No 

    1. Go to  9).
  5. 5)  (T141) CLUTCH INTERLOCK SWITCH SIGNAL CIRCUIT SHORTED TO VOLTAGE 
    Fig 4: CHECKING CLUTCH INTERLOCK SWITCH SIGNAL CIRCUIT
    GC0041997Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Disconnect the Engine Control Module (ECM) connector.

    Remove the ASD Relay.

    Connect a jumper wire between cavity 30 and cavity 87 of the ASD Relay Connector.

    Turn the ignition on.

    Measure the voltage of the (T141) Clutch Interlock Switch Signal circuit in the Clutch Interlock Switch harness connector.

    Is there any voltage present? 

    Yes 

    1. Repair the (T141) Clutch Interlock Switch Signal circuit for a short to voltage.
    2. Perform the GATEWAY VERIFICATION TEST - VER. 1. (Refer to STANDARD PROCEDURE - GATEWAY VERIFICATION TEST - VER 1)

    No 

    1. Go to  6).
  6. 6)  (T141) CLUTCH INTERLOCK SWITCH SIGNAL CIRCUIT SHORTED TO GROUND 
    Fig 5: CHECKING CLUTCH INTERLOCK SWITCH SIGNAL CIRCUIT
    GC0042000Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Measure the resistance between ground and the (T141) Clutch Interlock Switch Signal circuit in the Clutch Interlock Switch harness connector.

    Is the resistance above 1000 ohms? 

    Yes 

    1. Go to  7).

    No 

    1. Repair the (T141) Clutch Interlock Switch Signal circuit for a short to ground.
    2. Perform the GATEWAY VERIFICATION TEST - VER. 1. (Refer to STANDARD PROCEDURE - GATEWAY VERIFICATION TEST - VER 1)
  7. 7)  (T12) CLUTCH INTERLOCK SWITCH STATUS CIRCUIT OPEN OR HIGH RESISTANCE 
    Fig 6: CHECKING CLUTCH INTERLOCK SWITCH STATUS CIRCUIT
    GC0042002Courtesy of DAIMLERCHRYSLER CORP.

    Measure the resistance of the (T12) Clutch Interlock Switch Status circuit between the PCM harness connector and the Gateway C2 harness connector.

    Is the resistance below 10.0 ohms? 

    Yes 

    1. Go to  8).

    No 

    1. Repair the (T12) Clutch Interlock Switch Status circuit for an open circuit or high resistance.
    2. Perform the GATEWAY VERIFICATION TEST - VER. 1. (Refer to STANDARD PROCEDURE - GATEWAY VERIFICATION TEST - VER 1)
  8. 8)  (T141) CLUTCH INTERLOCK SWITCH SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE 
    Fig 7: MEASURING RESISTANCE OF THE CLUTCH INTERLOCK SWITCH SIGNAL CIRCUIT
    GC0042001Courtesy of DAIMLERCHRYSLER CORP.

    Measure the resistance of the (T141) Clutch Interlock Switch Signal circuit between the Gateway C2 harness connector and the Clutch Interlock Switch harness connector.

    Is the resistance below 10.0 ohms? 

    Yes 

    1. Go to  9).

    No 

    1. Repair the (T141) Clutch Interlock Switch Signal circuit for an open circuit or high resistance.
    2. Perform the GATEWAY VERIFICATION TEST - VER. 1. (Refer to STANDARD PROCEDURE - GATEWAY VERIFICATION TEST - VER 1)
  9. 9)  GATEWAY 
    NOTE: Before Continuing: Disconnect the Gateway harness connectors 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 Gateway Module in accordance with the Service Information. (Refer to STANDARD PROCEDURE - PCM/ECM/SKREEM PROGRAMMING) .
    2. Perform the GATEWAY VERIFICATION TEST - VER. 1. (Refer to STANDARD PROCEDURE - GATEWAY VERIFICATION TEST - VER 1)
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