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Home >> Toyota >> 2018 >> Prius C One >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication System (W/O Safety Sense C) - Diagnostic Codes & Symptom Tests >> CAN COMMUNICATION SYSTEM(w/o Toyota Safety Sense C) >> Certification ECU Communication Stop Mode [11/2015 - ] >> Description

Certification ECU Communication Stop Mode [11/2015 - ]: 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 [11/2015 - ] ).
  • Communication system DTCs (DTCs that start with U) that correspond to "Certification ECU Communication Stop Mode" in "DTC Combination Table" are output (Refer to DIAGNOSIS SYSTEM [11/2015 - ] ).
  • Smart key ECU assembly (Certification ECU) branch line or connector
  • Power source circuit of smart key ECU assembly (certification ECU)
  • Smart key ECU assembly (Certification ECU) ground circuit
  • Smart key ECU assembly (Certification ECU)