2009 Jeep Patriot Limited, ED3, AWD, StandardFACTORY OEM SERVICE PROCEDURE

Module, Transmission Control: Description: Description

Fig 1: Locating Transmission Control Module (TCM)
GC0102479Courtesy of CHRYSLER LLC

The transmission control module (TCM) (3) is inside the car, behind the instrument panel to the right of the left kick panel (1) where the clutch pedal would be located. New controllers are shipped with generic software but need to be initialized for the vehicle into which it is installed. See Electrical/Electronic Control Modules/MODULE, Transmission Control - Standard ProcedureΒ .

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:

  • 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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