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Home >> Jeep >> 2024 >> Wagoneer Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (3.0L - DTCS U05AA-00 To U11E9-00) >> DTC Troubleshooting >> U05AA-00-Invalid Data Received From Charge Air Cooler Coolant Pump >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2024 Jeep Grand Wagoneer L and 2024 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR ANY SERVICE BULLETINS OR PCM SOFTWARE UPDATES 
    1. Check for any applicable Service Bulletins or Flash updates related to the DTC.

      Are there any applicable Service Bulletins or Flash updates?

      Yes 

      No 

      • Go To  2
  2. 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  4

      No 

  3. CHECK THE CHARGE AIR COOLER COOLANT PUMP HARNESS CONNECTOR AND TERMINALS 
    1. Turn the ignition off.
    2. Check the Charge Air Cooler Coolant Pump harness connector for proper connection at the Charge Air Cooler Coolant Pump.
    3. Verify that the connector is completely plugged in and locked prior to disconnecting.
    4. Disconnect the Charge Air Cooler Coolant Pump harness connector and check for pushed out or spread terminals, brineling on terminals, discoloration from excessive heat, or corrosion and water intrusion.

      Were any issues found with the connector or terminals?

      Yes 

      • Repair the found issues in accordance with the service information or properly connect and lock the Charge Air Cooler Coolant Pump harness connector.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  4
  4. CHECK FOR OTHER DTCS 
    1. Refer to the recorded DTCs.

      Are there any LIN Bus DTCs present?

      Yes 

      No 

      • Go To  5
  5. INSPECT THE CHARGE AIR COOLER COOLANT PUMP FOR SIGNS OF PHYSICAL DAMAGE 
    1. Inspect the Charge Air Cooler Coolant Pump and connector for damage due to road debris.

      Is the Charge Air Cooler Coolant Pump or connector damaged or disconnected?

      Yes 

      No 

      • Go To  6
  6. REPLACE THE CHARGE AIR COOLER COOLANT PUMP AND RETEST FOR DTC 
    1. Replace the Charge Air Cooler Coolant Pump in accordance with the Service Information. Refer to PUMP, WATER, REMOVAL AND INSTALLATION .
    2. Connect the Charge Air Cooler Coolant Pump and PCM harness connectors.
    3. Turn the ignition on.
    4. With the scan tool, erase DTCs.
    5. Using the Freeze Frame Data or When Monitored Conditions above, operate the vehicle within the conditions that set the DTC.
    6. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      • Go To  7

      No 

      • Replacing the Charge Air Cooler Coolant Pump repaired the fault.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  7. CHECK RELATED PCM 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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