1999 Chrysler 300MFACTORY OEM SERVICE PROCEDURE

Memory System Verification Test

Reconnect all previously disconnected components and connectors. Using scan tool, erase memory system DTCs. Operate power seat in all positions. Reset seat mirrors in both memory positions. Operate both seat heaters low and high. Using scan tool, read DTCs. If no DTCs are present, repair is complete. If any DTCs are present, go to MEMORY SYSTEM TEST 1AΒ .

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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