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Home >> Toyota >> 2019 >> Sienna SE, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication System - Diagnostic Codes (2 Of 2) & Circuit Tests (1 Of 3) >> Can Communication System >> Circuit Tests >> Main Body ECU Communication Stop Mode [12/2015 - 11/2017] >> Description

Main Body ECU Communication Stop Mode [12/2015 - 11/2017]: Description

Detection Item Symptom Trouble Area
Main Body ECU Communication Stop Mode
  • "Main Body" not displayed on "Communication Bus Check" screen of Techstream
  • Applies to "Main Body ECU Communication Stop Mode" in "DTC combination table"
  • Power source circuit of main body ECU (multiplex network body ECU)
  • Main body ECU (multiplex network body ECU) branch wire or connector
  • Main body ECU (multiplex network body ECU)
  • Instrument panel junction block
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