If you have a 2006-2015 Mazda 3 or Mazda 5 and you’re experiencing harsh, unpredictable shifting or your vehicle is stuck in limp mode, you might have a faulty Transmission Control Module or TCM.
You can get fully remanufactured TCMs here:
https://circuitboardmedics.com/automotive-circuit-board-repairs/?_bc_fsnf=1&Part=TCM&Service=Exchange&brand=31
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