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The Transmission Computer (TCM/TCU) controls automatic transmission shifting, torque converter lockup, and gear selection. A failing TCM causes harsh shifting, stuck gears, limp mode, and transmission warning lights.
Know when your Toyota transmission computer needs replacement:
TCM replacement typically requires programming to match your vehicle. Some used TCMs from identical vehicles may work plug-and-play. The TCM is often located on or near the transmission, or inside the vehicle near the ECU. Always verify programming requirements before purchase.
$100-$350
$200-$500
$400-$1,000
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