Certification ECU Communication Stop Mode [09/2022 - 08/2023]: Description

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Detection Item	Symptom	Trouble Area
Certification ECU Communication Stop Mode	Communication stop for "Certification (Smart)" and/or "Power Management" is indicated on the "Communication Bus Check" screen of the GTS. Refer to DIAGNOSIS SYSTEM [09/2022 - 11/2022] , or refer to DIAGNOSIS SYSTEM [11/2022 - ]	Certification ECU (smart key ECU assembly) branch line or connector Power source circuit of certification ECU (smart key ECU assembly) Certification ECU (smart key ECU assembly) ground circuit Certification ECU (smart key ECU assembly)