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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Theft Deterrent / Keyless Entry) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function) >> Power Source Mode does not Change >> Description

Power Source Mode does not Change: Description

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

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

HINT

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

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