2004 Chrysler 300M BaseFACTORY OEM SERVICE PROCEDURE

Shift Schedules

The PCM has programming that allows it to select a variety of shift schedules. Shift schedule selection is dependent on the following:

  • Shift lever position
  • Throttle position
  • Engine load
  • Fluid temperature
  • Software level

As driving conditions change, the PCM appropriately adjusts the shift schedule. Refer to the following chart to determine the appropriate operation expected, depending on driving conditions.

DRIVING CONDITIONS

Schedule Condition Expected Operation
Extreme Cold  Oil temperature at start-up below -16° F Park, Reverse, Neutral and 2nd gear only (prevents shifting which may fail a clutch with frequent shifts)
Cold  Oil temperature at start-up above -12° F and below 36° F
  • Delayed 2-3 upshift (approximately 22-31 mph)
  • Delayed 3-4 upshift (45-53 mph)
  • Early 4-3 costdown shift (approximately 30 mph)
  • Early 3-2 coastdown shift (approximately 17 mph)
  • High speed 4-2, 3-2, 2-1 kickdown shifts are prevented
  • No EMCC
Warm  Oil temperature at start-up above 36° F and below 80 degree F
  • Normal operation (upshift, kickdowns, and coastdowns)
  • No EMCC
Hot  Oil temperature at start-up above 80° F
  • Normal operation (upshift, kickdowns, and coastdowns)
  • Full EMCC, no PEMCC except to engage FEMCC (except at closed throttle at speeds above 70-83 mph)
Overheat  Oil temperature above 240° F or engine coolant temperature above 244° F
  • Delayed 2-3 upshift (25-32 mph)
  • Delayed 3-4 upshift (41-48 mph)
  • 3rd gear FEMCC from 30-48 mph
  • 3rd gear PEMCC from 27-31 mph
Super Overheat  Oil temperature above 260° F
  • All "Overheat" shift schedule features apply
  • 2nd gear PEMCC above 22 mph
  • Aboye 22 mph the torque converter will not unlock unless the throttle is closed or if a wide open throttle 2nd PEMCC to 1 kickdown is made
Factory Service Tools

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When to See a Mechanic

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

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