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June 10, 2003 Service bulletin

Engine control module (ECM) reset memory function whenever an automatic transmission is replaced,...

Toyota technical service bulletin TC00203 for 2004 Toyota Sienna.

Bulletin number
TC00203
Component
Power train: automatic transmission
Summary
Engine control module (ECM) reset memory function whenever an automatic transmission is replaced, overhauled or individual components are replaced. 00-03 all models. Tt

Owners of these vehicles have filed 89 complaints in the transmission category.

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