Certification ECU Communication Stop Mode [03/2017 - ]: Description

Detection Item	Symptom	Trouble Area
Certification ECU Communication Stop Mode	Either condition is met: "Certification (Smart)" is not displayed on the "CAN Bus Check" screen of the Techstream Refer to PROBLEM SYMPTOMS TABLE [03/2017 - ] Communication system DTCs (DTCs that start with U) that are output correspond to "Certification ECU Communication Stop Mode" in "DTC Combination Table" Refer to DIAGNOSIS SYSTEM [03/2017 - ]	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)