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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1617 (6.4L - DTCS P0206 To P0562 - 2500 Hd) >> DTC Troubleshooting >> P0523-Engine Oil Pressure Sensor Circuit High >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    NOTE:

    Review oil change history to ensure that the oil is being changed at the correct intervals and that the proper oil viscosity is being used.

    1. Verify engine oil level.
    2. Turn the ignition on.
    3. With the scan tool, select View DTCs.

      Is the DTC Active at this time?

      Yes 

      • Go To  2

      No 

  2. CHECK THE (G6) ENGINE OIL PRESSURE SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE 
    GC0149085Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Oil Pressure Sensor harness connector.
    3. Ignition on, engine not running.
    4. Measure the voltage on the (G6) Engine Oil Pressure Signal circuit at the Oil Pressure Sensor harness connector.

      Is the voltage above 5.2 volts?

      Yes 

      • Repair the (G6) Engine Oil Pressure Signal circuit for a short to voltage.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE (G6) ENGINE OIL PRESSURE SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. Turn the ignition off.
    2. Disconnect the PCM C2 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 the GPEC Diagnostic Adaptor to perform the diagnosis.

    3. Connect the (special tool #10436, Adapter, GPEC Diagnostic).
    4. Measure the resistance of the (G6) Engine Oil Pressure Signal circuit between the Engine Oil Pressure Sensor harness connector and the GPEC Adaptor.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  4

      No 

      • Repair the (G6) Engine Oil Pressure Signal circuit for an open or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  4. CHECK THE (K900) SENSOR GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. Measure the resistance of the (K900) Sensor Ground circuit between the Engine Oil Pressure Sensor harness connector and the GPEC Adaptor.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  5

      No 

      • Repair the (K900) Sensor Ground circuit for an open or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  5. CHECK THE (G6) ENGINE OIL PRESSURE SIGNAL CIRCUIT FOR A SHORT TO THE (F855) 5-VOLT SUPPLY CIRCUIT 
    GC0149093Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between the (G6) Engine Oil Pressure Signal circuit and the (F855) 5-Volt Supply circuit in the Engine Oil Pressure Sensor harness connector.

      Is the resistance above 10k Ohms?

      Yes 

      • Go To  6

      No 

      • Repair the short between the (F855) 5-Volt Supply circuit and the (G6) Engine Oil Pressure Signal circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  6. CHECK THE ABILITY OF THE PCM TO READ THE ENGINE OIL PRESSURE SENSOR READING 
    GC0149086Courtesy of CHRYSLER GROUP, LLC
    1. Reconnect the PCM C2 harness connector.
    2. Ignition on, engine not running.
    3. With the scan tool, monitor the Engine Oil Pressure Sensor voltage.
    4. Connect a jumper between the (G6) Engine Oil Pressure Signal circuit and the (K900) Sensor Ground circuit at the Engine Oil Pressure Sensor harness connector.
      NOTE:

      The P0522-ENGINE OIL PRESSURE SENSOR CIRCUIT LOW DTC should become active or pending with the jumper in place.

      Does the DTC display as described above?

      Yes 

      • Verify that there is good pin to terminal contact in the Sensor and Powertrain Control Module connectors. Replace the Engine Oil Pressure Sensor if no problems were found in the connectors. Refer to SENSOR, OIL PRESSURE, REMOVAL .
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  7
  7. CHECK RELATED HARNESS CONNECTIONS 
    1. Disconnect all PCM harness connectors.
    2. Disconnect all related in-line harness connections (if equipped).
    3. Disconnect the related component harness connectors.
    4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
      • Proper connector installation.
      • Damaged connector locks.
      • Corrosion.
      • Other signs of water intrusion.
      • Weather seal damage (if equipped).
      • Bent terminals.
      • Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
      • Terminals that have been pushed back into the connector cavity.
      • Check for spread terminals and verify proper terminal tension.

      Repair any conditions that are found.

    5. Connect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    6. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    7. Connect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. With the scan tool, erase DTCs.
    9. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
    10. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      No 

      • The wiring or poor connection problem has been repaired.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
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