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Home › Chrysler › 2006 › 300 Base, 42RLE/VLP › Repair and Diagnosis › Engine Performance › System › Engine Controls - DTCS P0196 To P0325 › Diagnosis And Testing › P0196-Engine Oil Temperature Sensor Circuit Performance › Diagnostic Test

Diagnostic Test

  1. 1)  ACTIVE DTC 

    Ignition on, engine not running.

    With a scan tool, read DTCs.

    Is the DTC active at this time? 

    Yes 

    1. Go To  2).

    No 

    1. Refer to INTERMITTENT CONDITION .
    2. Perform POWERTRAIN VERIFICATION TEST .
  2. 2)   ENGINE OIL TEMP SIGNAL CIRCUIT 

    Turn the ignition off.

    Disconnect the Engine Oil Temp Sensor harness connector.

    Ignition on, engine not running.

    Measure the voltage on the (G224) Engine Oil Temp Signal circuit in the Engine Oil Temp Sensor harness connector.

    Is the voltage between 4.8 to 5.2 volts? 

    Yes 

    1. Go To  3).

    No 

    1. Go To  4).
  3. 3)  (K900) SENSOR GROUND CIRCUIT 

    Measure the resistance between ground and the (K900) Sensor Ground circuit in the Engine Oil Temp Sensor harness connector.

    Is the resistance below 15.0 ohms? 

    Yes 

    1. Replace the Engine Oil Temperature Sensor.
    2. Perform POWERTRAIN VERIFICATION TEST .

    No 

    1. Go To  8).
  4. 4)  (G224) ENGINE OIL TEMP SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE  
    Fig 1: Checking Oil Temperature Sensor Signal Circuit For Short To Voltage
    GC0014853Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Disconnect the PCM harness connectors.

    NOTE: Visually inspect both the component and the PCM connectors. Look for damaged, partially broken wires, and backed out or corroded terminals.

    Ignition on, engine not running.

    Measure the voltage on the (G224) Engine Oil Temp Signal circuit in the Engine Oil Temp Sensor harness connector.

    Is voltage present? 

    Yes 

    1. Repair the short to battery voltage in the (G224) Engine Oil Temp Signal circuit.
    2. Perform POWERTRAIN VERIFICATION TEST .

    No 

    1. Go To  5).
  5. 5)  (G224) ENGINE OIL TEMP SIGNAL CIRCUIT OPEN 
    Fig 2: Checking Oil Temperature Sensor Signal Circuit For Open
    GC0014855Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    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 (G224) Engine Oil Temp Signal circuit from the Engine Oil Temp Sensor harness connector to the appropriate terminal of special tool #8815.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Go To  6).

    No 

    1. Repair the open in the (G224) Engine Oil Temp Signal circuit.
    2. Perform POWERTRAIN VERIFICATION TEST .
  6. 6)  (G224) ENGINE OIL TEMP SIGNAL CIRCUIT SHORTED TO GROUND 
    Fig 3: Checking Oil Temperature Sensor Signal Circuit For Short To Ground
    GC0014857Courtesy of DAIMLERCHRYSLER CORP.

    Measure the resistance between ground and the (G224) Engine Oil Temp Signal circuit in the Engine Oil Temp Sensor harness connector.

    Is the resistance below 100 ohms? 

    Yes 

    1. Repair the short to ground in the (G224) Engine Oil Temp Signal circuit.
    2. Perform POWERTRAIN VERIFICATION TEST .

    No 

    1. Go To  7).
  7. 7)  (G224) ENGINE OIL TEMP SIGNAL SHORTED TO THE (K900) SENSOR GROUND  
    Fig 4: Checking Oil Temperature Sensor Signal Circuit For Short To Ground Circuit
    GC0014858Courtesy of DAIMLERCHRYSLER CORP.

    Measure the resistance between the (G224) Engine Oil Temp Signal circuit and the (K900) Sensor ground circuit in the Engine Oil Temp Sensor harness connector.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Repair the short between the (K900) Sensor ground and the (G224) Engine Oil Temp Signal circuit.
    2. Perform POWERTRAIN VERIFICATION TEST .

    No 

    1. Go To  9).
  8. 8)  (K900) SENSOR GROUND CIRCUIT OPEN  
    Fig 5: Checking Oil Temperature Sensor Ground Circuit For Open
    GC0014856Courtesy of DAIMLERCHRYSLER CORP.

    Disconnect the PCM harness connectors.

    Measure the resistance of the (K900) Sensor ground circuit from the Engine Oil Temp Sensor harness connector to the appropriate terminal of special tool #8815.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Go To  9).

    No 

    1. Repair the open in the (K900) Sensor ground circuit.
    2. Perform POWERTRAIN VERIFICATION TEST .
  9. 9)  PCM 
    NOTE: Before continuing, check the PCM harness connector 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.

    Were there any problems found? 

    Yes 

    1. Repair as necessary.
    2. Perform POWERTRAIN VERIFICATION TEST .

    No 

    1. Replace and program the Powertrain Control Module per Service Information.
    2. Perform POWERTRAIN VERIFICATION TEST .
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