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Toyota TSB #T-SB-0012-13
2009 Toyota Sienna
TSB Document:
Affected Component: ELECTRICAL SYSTEM:SOFTWARE
- Summary
- Flash reprogramming allows the ECU software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of the TIS and the CUW.
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