Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Freeze Frame Data

FREEZE FRAME DATA

DESCRIPTION

(a) When a pre-collision system DTC is stored, the forward recognition camera stores the current vehicle state as Freeze Frame Data.

CHECK FREEZE FRAME DATA

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Pre-Collision System / Trouble Codes.

Body Electrical > Pre-Collision System > Trouble Codes

(e) According to the display on the Techstream, select a DTC to display its freeze frame data.

Body Electrical > Pre-Collision System

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled

-

-

-

Cannot be used

Total Distance Traveled - Unit

-

-

-

Cannot be used

PCS Function ON/OFF State

Pre-collision system status

ON / OFF

ON: Pre-collision system enabled

OFF: Pre-collision system disabled

-

PBA Request

Pre-collision brake assist operation status

Not PBA Request / PBA Standby Request / PBA Request Level 1 / PBA Request Level 2

Not PBA Request: Pre-collision brake assist not requested

PBA Standby Request: Low pre-collision brake assist requested

PBA Request Level 1: Medium pre-collision brake assist requested

PBA Request Level 2: High pre-collision brake assist requested

The value changes in accordance with the possibility of a collision. This item indicates the pre-collision brake assist standby status. Whether pre-collision brake assist is applied or not is determined by the depression of the brake pedal.

VGRS Activation Request

-

-

-

Cannot be used

Warning Brake Request

-

-

-

Cannot be used

FPB Request

Skid control ECU (brake actuator assembly) PCS brake request (pre-braking)

OFF / ON

ON: Operating

OFF: Not operating

-

PB Request

Pre-collision brake request status

OFF / ON

ON: Operating

OFF: Not operating

-

AVS Control Request

AVS control activation status

OFF / ON

ON: AVS control activated

OFF: AVS control not activated

w/ AVS

Prefill

Skid control ECU (brake actuator assembly) PCS brake assist standby

OFF / ON

ON: Operating

OFF: Not operating

-

PBR Request

PBR operation status

OFF / ON

ON: Operating

OFF: Not operating

-

PBH Request

PBH operation status

OFF / ON

ON: Operating

OFF: Not operating

-

PCS PBA Invalid

PCS PBA status

OFF / ON

ON: PCS PBA Invalid

OFF: PCS PBA valid

-

PCS Warning Buzzer Invalid

PCS warning buzzer status

OFF / ON

ON: PCS warning buzzer Invalid

OFF: PCS warning buzzer valid

-

PCS PB Invalid

PCS PB Status

OFF / ON

ON: PCS PB Invalid

OFF: PCS PB valid

-

PCS Warning Display Request

PCS warning sensitivity displayed on multi-information display

Not Request / PCS Warning Display 1 Request / PCS Warning Display 2 Request / PCS Warning Display 3 Request

Not Request: No message

PCS Warning Display 1 Request: Warning sensitivity (early) displayed

PCS Warning Display 2 Request: Warning sensitivity (middle) displayed

PCS Warning Display 3 Request: Warning sensitivity (late) displayed

-

PCS Warning Buzzer Request

PCS warning buzzer (skid control buzzer assembly) status

OFF / ON

ON: Sounding

OFF: Not sounding

-

PCS Function ON/OFF State Stored

Pre-collision system on/off setting when the pre-collision system is turned off and the engine switch is turned off and then to on (IG).

Not Stored / Stored

Stored: Maintains last on/off status

Not Stored: Defaults to on

"PCS Function ON/OFF State Stored" is a customizable item which can be set using the Techstream.

PCS Warning Timing State Stored 2

Sensitivity setting of the pre-collision system when the pre-collision system is turned on and the engine switch is turned off and then to on (IG).

Not Stored / Stored

Stored: Maintains last setting

Not Stored: Defaults to middle

"PCS Warning Timing State Stored 2" is a customizable item which can be set using the Techstream.

PCS Warning Timing State Stored 3

Sensitivity setting when the pre-collision system is turned off and the engine switch is turned off and then to on (IG)

Not Stored / Stored

Stored: Maintains last setting

Not Stored: Defaults to middle

"PCS Warning Timing State Stored 3" is a customizable item which can be set using the Techstream.

PCS Warning Timing State Stored 1

Sensitivity setting of the pre-collision system when the pre-collision system is turned off and then on with the engine switch on (IG)

Not Stored / Stored

Stored: Maintains last setting

Not Stored: Defaults to middle

"PCS Warning Timing State Stored 1" is a customizable item which can be set using the Techstream.

    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Pre-Collision Syste ...

    Fail-safe Chart
    FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) When a malfunction occurs in the pre-collision system, a message will be displayed on the multi-information display and the pre-collision system will be disabled ...

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