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Home >> Toyota >> 2012 >> Prius Plug-in >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Smart Key System (Keyless Start) (Plug-In) (Diagnostic Codes & Symptom Tests) >> SMART KEY SYSTEM (for Start Function) >> Symptom Tests >> Power Source Mode does not Change to ON (READY) >> Inspection Procedure
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Inspection Procedure

NOTE:
  • When the power management control ECU is replaced with a new one and the cable from the negative (-) auxiliary battery terminal is connected, the power source mode becomes on (IG) mode. When the auxiliary battery is removed and reinstalled, power source mode that was selected when the auxiliary battery was removed is restored.
  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.