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February 16, 2018 Service bulletin

TT: Techstream cannot perform a DCM (Telematics ECU) Activation following a DCM replacement

Toyota technical service bulletin T-TT-0420-16_Rev for 2018 Toyota Camry, 2017-2018 Toyota Prius and 2018 Toyota Sienna and others.

Bulletin number
T-TT-0420-16_Rev
Component
Equipment: electrical
Summary
TT: Techstream cannot perform a DCM (Telematics ECU) Activation following a DCM replacement. Techstream may exhibit an ?ATX web service unavailable? error or similar message when attempting a DCM activation. This is a known condition and will be remedied in the near future.

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