Lexus NX: Freeze Frame Data

FREEZE FRAME DATA

DESCRIPTION

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

CHECK FREEZE FRAME DATA

(a) Connect the Techstream to the DLC3.

(b) Turn the power 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 Techstream display, select a DTC that stored freeze frame data.

(f) Read the freeze frame data recorded when the DTC was stored.

Body Electrical > Pre-Collision System

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled

-

-

-

Not applicable

Total Distance Traveled - Unit

-

-

-

Not applicable

PCS Function ON/OFF State

Pre-collision system on/off status

ON or OFF

ON: Pre-collision system on

OFF: Pre-collision system off

-

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 operation is not requested.

PBA Standby Request: Pre-collision brake assist weak assist is requested.

PBA Request Level 1: Pre-collision brake assist mild assist is requested.

PBA Request Level 2: Pre-collision brake assist strong assist is requested.

The value varies according to the possibility of a collision. The pre-collision brake assist request only indicates the status that the assist preparation is necessary. Whether or not the assist control is actually performed is dependent upon how the driver depresses the brake.

VGRS Activation Request

VGRS control activation request

Not Request, VGRS 1 Request, VGRS 2 Request, VGRS 3 Request

Not Request: No request

VGRS 1 Request: Request 1

VGRS 2 Request: Request 2

VGRS 3 Request: Request 3

This item is displayed on the Techstream for vehicles without the VGRS system, but cannot be used

Warning Brake Request

Warning brake request status

ON or OFF

ON: Warning brake request on

OFF: Warning brake request off

-

FPB Request

PCS brake request to skid control ECU (brake booster with master cylinder assembly) (pre-collision braking)

ON or OFF

ON: Operating

OFF: Not operating

-

PB Request

Pre-collision brake operation status

ON or OFF

ON: Operating

OFF: Not operating

-

AVS Control Request

AVS operation status

ON or OFF

ON: Operating

OFF: Not operating

This item is displayed on the Techstream for vehicles without AVS, but cannot be used

Prefill

PCS brake operation preparation to skid control ECU (brake booster with master cylinder assembly)

ON or OFF

ON: Operating

OFF: Not operating

-

PBR Request

PBR operation status

ON or OFF

ON: Operating

OFF: Not operating

-

PBH Request

PBH operation status

ON or OFF

ON: Operating

OFF: Not operating

-

LPB Request

LPB operation status

ON or OFF

ON: Operating

OFF: Not operating

-

PCS PBA Invalid

Pre-collision brake assist function status

ON or OFF

ON: Pre-collision brake assist function valid

OFF: Pre-collision brake assist function invalid

-

PCS Warning Buzzer Invalid

PCS warning buzzer function status

ON or OFF

ON: PCS warning buzzer function valid

OFF: PCS warning buzzer function invalid

-

PCS PB Invalid

PCS brake function status

ON or OFF

ON: PCS brake function valid

OFF: PCS brake function invalid

-

PCS Warning Display Request

PCS warning display request status for the multi-information display

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

Not Request: No display

PCS Warning Display 1 Request: Display 1

PCS Warning Display 2 Request: Display 2

PCS Warning Display 3 Request: Display 3

-

PCS Warning Buzzer Request

PCS warning buzzer (skid control buzzer) status

ON or OFF

ON: PCS warning buzzer sounding

OFF: PCS warning buzzer not sounding

-

PCS Function ON/OFF State Stored

Storage condition of PCS ON/OFF condition when the PCS function is off and the power switch is turned from off to on (IG)

Stored or Not Stored

Stored: Pre-collision system maintains off

Not stored: Pre-collision system always turns on

-

PCS Warning Timing State Stored 2

Storage condition of warning sensitivity setting when the PCS function is off and the power switch is turned from off to on (IG)

Stored or Not Stored

Stored: Sensitivity and CAUTION settings are maintained as previous value

Not stored: Sensitivity and CAUTION is reset to default setting

-

PCS Warning Timing State Stored 3

Storage condition of warning sensitivity setting when the PCS function is turned from off to on while the power switch is on (IG)

Stored or Not Stored

Stored: Sensitivity and CAUTION settings are maintained as previous value

Not stored: Sensitivity and CAUTION is reset to default setting

-

PCS Warning Timing State Stored 1

Storage condition of warning sensitivity setting when the PCS function is on and the power switch is turned from off to on (IG)

Stored or Not Stored

Stored: Sensitivity and CAUTION settings are maintained as previous value

Not stored: Sensitivity and CAUTION is reset to default setting

-

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