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Home >> Chrysler >> 2025 >> Pacifica Plug-In Hybrid Select >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Seats >> Passenger Memory Seats Module (MSMP) - DTCS B1D87-00 To U1144-00 >> DTC Troubleshooting >> B221C-42 (MSM) Memory Seat Module Internal-General Memory Failure >> Diagnostic Test
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Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    1. With the scan tool, read Memory Seat Module-Passenger (MSMP) DTCs and record on the work order.
    2. With the scan tool, erase MSMP DTCs.
    3. Turn the ignition off.
    4. Turn the ignition on.
    5. With the scan tool, read MSMP DTCs.

      Did the DTC return?

      Yes 

      • Attempt to update (flash) the Memory Seat Module (MSMP). If you are unable to update the controller, or if this DTC continues to reset after updating Go To  2
      • Perform POWER SEAT SYSTEM VERIFICATION TEST. Refer to POWER SEAT SYSTEM VERIFICATION TEST .

      No 

  2. CHECK RELATED HARNESS CONNECTIONS 
    1. Turn the ignition off.
    2. Disconnect all MSMP harness connectors.
    3. Disconnect all related in-line harness connections (if equipped).
    4. Disconnect the related component harness connectors.
    5. 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.
      • Perform a terminal drag test on each connector terminal to verify proper terminal tension.

      Repair any conditions that are found.

    6. Reconnect all MSMP harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    7. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    9. With the scan tool, erase DTCs.
    10. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    11. With the scan tool, read MSMP DTCs.

      Did the DTC return?

      Yes 

      No