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Home >> Toyota >> 2025 >> Prius Plug-In Hybrid SE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Can Communication System (HEV) - Circuit Tests (1 Of 3) & Diagnostic Codes) >> CAN COMMUNICATION SYSTEM (for HEV Model) >> Certification ECU Communication Stop Mode [12/2022 - ] >> Description

Certification ECU Communication Stop Mode [12/2022 - ]: 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 [12/2022 - ]
  • 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)