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Home >> Toyota >> 2012 >> Prius Two >> Repair and Diagnosis (Single Page) >> External Pages >> Different variant/trim >> Section 119 (Smart Key System (For Entry Function) (Plug-In) (Diagnostic Codes & Symptom Tests)) >> SMART KEY SYSTEM (for Entry Function) >> DTC B27A6: Open in Rear Floor Electrical Key Oscillator Circuit >> Description
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DTC B27A6: Open in Rear Floor Electrical Key Oscillator Circuit: Description

WARNING: This page is about a different variant/trim than selected.

The certification ECU (smart key ECU assembly) generates a request signal and sends it to the No. 2 indoor electrical key antenna assembly (for center floor). To detect the key inside the cabin, the No. 2 indoor electrical key antenna assembly (for center floor) creates a detection area in the cabin.

DTC B27A6 is detected by the certification ECU (smart key ECU assembly) when an open circuit occurs between the certification ECU (smart key ECU assembly) and No. 2 indoor electrical key antenna assembly (for center floor) terminals (between CLG6 and ANTE6, or CG6B and CLGB).

DTC No. DTC Detection Condition Trouble Area
B27A6 Open circuit detected between the certification ECU (smart key ECU assembly) and No. 2 indoor electrical key antenna assembly (for center floor) terminals (between CLG6 and ANTE6, or CG6B and CLGB).
  • No. 2 indoor electrical key antenna assembly (for center floor)
  • Certification ECU (smart key ECU assembly)
  • Wire harness or connector