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Home >> Toyota >> 2014 >> Prius Plug-in >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 120 (Smart Key System (For Start Function) (Diagnostic Codes & Symptom Tests) (Except Plug-In)) >> SMART KEY SYSTEM (for Start Function) >> Symptom Tests >> Power Source Mode does not Change to ON (IG) [10/2013 - ] >> Description
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Power Source Mode does not Change to ON (IG) [10/2013 - ]: Description

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

When the power switch is pushed with the electrical key in the cabin, the power management control ECU receives signals to change the power source mode.

HINT: 

To allow use of the Techstream to inspect the push-button start function when the power source mode is off, repeat opening and closing any of the doors. Opening and closing a door establishes communication between the Techstream and power management control ECU. (Opening and closing a door can also be simulated by operating a door courtesy light switch.)