LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2012 >> Grand Cherokee Laredo, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Steering Column Switches >> Memory Seat Module (MSMD) - Electrical Diagnostics >> DTC Troubleshooting >> B221C-42-(MSM) Memory Seat Module Internal-General Memory Failure >> Diagnostic Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Test

  1. VERIFY THE IS ACTIVE 
    1. With the scan tool, record and erase DTCs
    2. Turn the ignition off.
    3. Turn the ignition on.
    4. With the scan tool, read the active DTCs.

      Does the scan tool display DTC B221C-42-(MSM) MEMORY SEAT MODULE INTERNAL-GENERAL MEMORY FAILURE?

      Yes 

      No 

      • Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
      • Perform the POWER SEAT SYSTEM VERIFICATION TEST. Refer to POWER SEAT SYSTEM VERIFICATION TEST .