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Home >> Jeep >> 2005 >> Wrangler X, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 628 (Powertrain Diagnostic Procedures - DRIVEABILITY - NGC Symptoms & Diagnostic Tests (DTCS P0016 To P0563)) >> DRIVEABILITY - NGC - Diagnostic Tests >> P0522-Oil Pressure Circuit Low (Gas - NGC) >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to VERIFICATION TESTS for appropriate verification test procedures.
  1. Ignition on, engine not running.

    With the DRBIII®, read DTCs and record the related Freeze Frame data.

    Is the Good Trip Counter displayed and equal to zero?

    1. Yes --> Go To 2
    2. No --> Refer to the SYMPTOM: INTERMITTENT CONDITION  Symptom (Diagnostic Procedure).

      Perform (NGC) POWERTRAIN VERIFICATION TEST VER - 2 .

  2. Turn the ignition off.

    Disconnect the Oil Pressure Switch harness connector.

    Ignition on, engine not running.

    Connect a jumper wire to the (G60) Oil Pressure Signal circuit in the Sensor harness connector.

    With the DRBIII® monitor the Oil Pressure Switch state.

    Touch the other end of the jumper wire to a known good Ground several times.

    Did the Oil Pressure Switch state change from High to Low?

    1. Yes --> Replace the Oil Pressure Switch.

      Perform (NGC) POWERTRAIN VERIFICATION TEST VER - 2 .

    2. No --> Go To 3
    NOTE: Remove the jumper wire before continuing.
  3. Turn the ignition off.

    Disconnect the PCM harness connectors.

    Ignition on, engine not running.

    Using a 12-volt test light connected to ground, probe the (G6) Oil Pressure Signal circuit at the Switch harness connector.

    Does the test light illuminate?

    1. Yes --> Repair the short to battery voltage on the (G6) Oil Pressure Signal circuit.

      Perform (NGC) POWERTRAIN VERIFICATION TEST VER - 2 .

    2. No --> Go To 4
    4. 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.
  4. Measure the resistance of the (G6) Oil Pressure Signal circuit from the Oil Pressure Switch harness connector to the appropriate terminal of special tool #8815.

    Is the resistance below 5.0 ohms?

    1. Yes --> Go To 5
    2. No --> Repair the open in the (G6) Oil Pressure Signal circuit.

      Perform (NGC) POWERTRAIN VERIFICATION TEST VER - 2 .

  5. Measure the resistance between a known good ground and the (G6) Oil Pressure Signal circuit at the Switch connector.

    Is the resistance below 100 ohms?

    1. Yes --> Repair the short to ground in the (G6) Oil Pressure Signal circuit.

      Perform (NGC) POWERTRAIN VERIFICATION TEST VER - 2 .

    2. No --> Go To 6
    6. NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
  6. 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.

    1. Repair
      1. Replace and program the Powertrain Control Module per Service Information.
      2. Perform (NGC) POWERTRAIN VERIFICATION TEST VER - 2 .
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