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Home >> Lexus >> 2014 >> IS F >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P1603-U0101) & Circuit Tests) >> SFI System >> Circuits Tests >> Brake Override System [09/2013 - ] >> Description
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Brake Override System [09/2013 - ]: Description

When the vehicle is being driven with the accelerator pedal depressed, depressing the brake pedal without releasing the accelerator pedal will activate the brake override system to restrict driving torque. The conditions for activating the brake override system as well as the items that are controlled are explained below.

Fig 1: Brake Override System Description
GTY292770Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Activation Conditions: 

NOTE:

The vehicle may not enter the brake override system control due to the relation of the accelerator pedal angle and the vehicle's speed.

Items Controlled: 

HINT: 

When this control is activated, the accelerator opening value is forcibly reduced to a fixed value. Therefore, the Accelerator Position value in the Data List is fixed regardless of the actual accelerator opening value (Accel Sens. No. 1 Volt %)

Deactivation Conditions: