LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2022 >> Gladiator Mojave, Part Time T/Case Control, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (3.0L Diesel - DTCS P0117-00 To P01C4-00) >> DTC Troubleshooting >> P0197-00-Engine Oil Temperature Sensor Circuit Low >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR THE DTC TO RETURN 
    1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
    2. For future reference, run and save a vehicle Scan Report and all related recorded data.
    3. With the scan tool, erase all DTCs.
    4. Turn the ignition off for a minimum of 10.0 seconds.
    5. Turn the ignition on.
    6. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
    7. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      • Go To  2

      No 

      • Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
  2. CHECK THE ABILITY OF THE PCM TO MONITOR THE ENGINE OIL TEMPERATURE SENSOR SIGNAL 
    1. Turn the ignition off.
    2. Disconnect the EOT Sensor harness connector.
    3. Turn the ignition on.
    4. With the scan tool, read DTCs.
      NOTE:

      The scan tool should display the P0198-00 ENGINE OIL TEMPERATURE SENSOR CIRCUIT HIGH DTC as active or pending with the connector disconnected.

      Does the scan tool display as described above?

      Yes 

      • Verify that there is good pin to terminal contact in the EOT Sensor and Powertrain Control Module C2 connectors. Replace the Engine Oil Temperature Sensor if no problems were found with the connectors.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to 3.0L, POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE EOT SENSOR (G224) SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    1. Turn the ignition off.
    2. Disconnect the PCM C2 harness connector.
    3. Check for continuity between ground and the EOT Sensor (G224) Signal circuit at the EOT Sensor harness connector.

      Is there continuity between ground and the EOT Sensor (G224) Signal circuit?

      Yes 

      No 

      • Go To  4
  4. CHECK FOR THE EOT SENSOR (G224) SIGNAL CIRCUIT SHORTED TO THE (G924) GROUND CIRCUIT 
    1. Check for continuity between the EOT Sensor (G224) Signal circuit and the (G924) Sensor Ground circuit at the EOT Sensor harness connector.

      Is there continuity between the EOT Sensor (G224) Signal circuit and the (G924) Sensor Ground circuit?

      Yes 

      • Repair the short between the EOT Sensor (G224) Signal circuit and the (G924) Sensor Ground circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to 3.0L, POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  5
  5. 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 

      • Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to 3.0L, POWERTRAIN VERIFICATION TEST .

      No 

scientia non olet · About LEMON Manuals