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Home >> Chrysler >> 2006 >> PT Cruiser Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 2.4L Engine - DTCS P1105 To P1697 >> Diagnosis And Testing >> P1189-Tip Sensor Circuit Low >> Diagnostic Test

Diagnostic Test

  1. 1)  TIP SENSOR VOLTAGE BELOW .078 VOLTS 

    Start the engine.

    With the scan tool, read the TIP Sensor voltage.

    Is the voltage below .078 of a volt? 

    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)  (F856) 5 VOLT SUPPLY CIRCUIT 
    Fig 1: MEASURING FOR VOLTAGE AT THE 5 VOLT SUPPLY CIRCUIT
    GC0041752Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Disconnect the TIP Sensor harness connector.

    Ignition on, engine not running.

    Measure the voltage of the (F856) 5 Volt Supply circuit in the TIP Sensor harness connector.

    Is the voltage between 4.5 to 5.2 volts? 

    Yes 

    1. Go To  3).

    No 

    1. Go To  6).
  3. 3)  TIP SENSOR INTERNAL FAILURE 

    With the harness connect disconnected.

    Monitor the TIP Sensor voltage on the scan tool.

    Is the voltage between 4.5 and 5.2 volts? 

    Yes 

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

    No 

    1. Go To  4).
  4. 4)  (K153) TIP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND 
    Fig 2: MEASURING RESISTANCE BETWEEN GROUND AND TIP SENSOR SIGNAL CIRCUIT
    GC0041756Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Disconnect the PCM harness connector.

    Measure the resistance between the (K153) TIP Sensor signal circuit at the TIP Sensor harness connector and ground.

    Is the resistance below 100 ohms? 

    Yes 

    1. Repair the short to ground in the (K153) TIP Sensor signal circuit.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .

    No 

    1. Go To  5).
  5. 5)  (K153) TIP SENSOR SIGNAL CIRCUIT SHORTED TO (K914) SENSOR GROUND CIRCUIT 
    Fig 3: MEASURING RESISTANCE BETWEEN THE TIP SENSOR SIGNAL CIRCUIT
    GC0041757Courtesy of DAIMLERCHRYSLER CORP.

    Measure the resistance between the (K153) TIP Sensor signal circuit and the (K914) Sensor ground circuit in the TIP Sensor harness connector.

    Is the resistance below 100 ohms? 

    Yes 

    1. Repair the (K153) TIP Sensor signal circuit for a short to the (K914) Sensor ground circuit.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .

    No 

    1. Go To  9).
  6. 6)  (F856) 5 VOLT SUPPLY CIRCUIT OPEN 
    Fig 4: MEASURING RESISTANCE OF THE 5 VOLT SUPPLY CIRCUIT
    GC0041753Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Disconnect the PCM harness connector.

    CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special Tool #8815 to perform diagnosis.

    Measure the resistance of the (F856) 5 Volt Supply circuit from the TIP Sensor harness connector to the appropriate terminal of special tool #8815.

    Is the resistance below 100 ohms? 

    Yes 

    1. Go To  7).

    No 

    1. Repair the open (F856) 5 Volt Supply circuit.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .
  7. 7)  (F856) 5 VOLT SUPPLY CIRCUIT SHORT TO GROUND 
    Fig 5: MEASURING RESISTANCE BETWEEN THE 5 VOLT SUPPLY CIRCUIT AND GROUND
    GC0041754Courtesy of DAIMLERCHRYSLER CORP.

    Measure the resistance between the (F856) 5 Volt Supply circuit in the TIP Sensor harness connector and ground.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Repair the (F856) 5 Volt Supply circuit for a short to ground.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .

    No 

    1. Go To  8).
  8. 8)  (F856) 5 VOLT SUPPLY CIRCUIT SHORT TO (K914) SENSOR GROUND 
    Fig 6: MEASURING RESISTANCE BETWEEN THE 5 VOLT SUPPLY CIRCUIT AND SENSOR GROUND CIRCUIT
    GC0041755Courtesy of DAIMLERCHRYSLER CORP.

    Measure the resistance between the (F856) 5 Volt Supply circuit and the (K914) Sensor Ground circuit in the TIP Sensor harness connector.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Repair the (F856) 5 Volt Supply circuit for a short to the (K914) Sensor Ground circuit.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .

    No 

    1. Go To  9).
  9. 9)  PCM 
    NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.

    If there are no possible causes remaining, view repair. 

    Repair 

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