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Home >> Toyota >> 2017 >> Prius Prime Advanced >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Key System (Keyless Start) - Diagnostic Codes & Symptom Tests >> SMART KEY SYSTEM (for Start Function) >> Symptom Tests >> Power Source Mode does not Change to ON (IG and ACC) [09/2016 - 05/2019] >> Description

Power Source Mode does not Change to ON (IG and ACC) [09/2016 - 05/2019]: Description

If any of the following operations are performed, the certification ECU (smart key ECU assembly) receives a signal, and changes the power source mode.

RELATED DATA LIST AND ACTIVE TEST ITEMS

Problem Symptom Data List and Active Test
Power source mode does not change to on (IG) or on (ACC) Power Source Control 
  • Start Switch1
  • Start Switch2
  • Latch Circuit
  • ACC Relay Monitor
  • Power Supply Condition
  • IG Relay Monitor (Outside)
  • IG Relay Monitor (Inside)