Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001YNYK
Model Year Start: 2022 Model: Avalon HV Prod Date Range: [08/2021 -           ]
Title: PRE-COLLISION: PRE-COLLISION SYSTEM: DATA LIST / ACTIVE TEST; 2022 MY Avalon Avalon HV [08/2021 -        ]

DATA LIST / ACTIVE TEST

DATA LIST

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

(a) Read the Data List according to the display on the Techstream.

Body Electrical > Pre-Collision System > Data List

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 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 not operating

PBA Standby Request: Pre-collision brake assist operating and brake pedal not depressed

PBA Request Level 1: Pre-collision brake assist operating and brake pedal depressed

PBA Request Level 2: Pre-collision brake assist operating and brake pedal deeply depressed

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 pedal.

VGRS Activation Request

-

-

-

Cannot be used

Warning Brake Request

-

-

-

Cannot be used

FPB Request

PCS brake request to skid control ECU (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 control activation start

ON or OFF

ON: AVS control activated

OFF: AVS control not activated

-

Prefill

PCS brake operation preparation to skid control ECU

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

-

PCS PBA Invalid

Pre-collision brake assist function status

ON or OFF

ON: Pre-collision brake assist function invalid

OFF: Pre-collision brake assist function valid

-

PCS Warning Buzzer Invalid

PCS warning buzzer function status

ON or OFF

ON: PCS warning buzzer function invalid

OFF: PCS warning buzzer function valid

-

PCS PB Invalid

PCS brake function status

ON or OFF

ON: PCS brake function invalid

OFF: PCS brake function valid

-

Acceleration Suppression at Low Speed (A Control) Invalid

Acceleration suppression at low speed (A control) invalid status

ON or OFF

ON: Acceleration suppression at low speed (A control) function invalid

OFF: Acceleration suppression at low speed (A control) function valid

Cannot be used

Emergency Steering Assist Invalid 1

Emergency Steering Assist Invalid 1 status

ON or OFF

ON: Emergency steering assist invalid 1 function invalid

OFF: Emergency steering assist invalid 1 function valid

-

PCS Warning Display Request

PCS warning message status

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

Not Request: Not displayed

PCS Warning Display 1 Request: Displayed

PCS Warning Display 2 Request: Not used

PCS Warning Display 3 Request: Not used

"BRAKE!" is displayed on multi-information display

PCS Warning Buzzer Request

PCS meter buzzer operation status

ON or OFF

ON: PCS warning buzzer sounding

OFF: PCS warning buzzer not sounding

-

Vehicle Information (Conv/HV/EV)

Vehicle information (Conv/HV/EV)

Unknown, Conv or HV/EV

Unknown: Vehicle information not confirmed

Conv: Conventional

HV/EV: Hybrid vehicle

-

Vehicle Information (Transmission Type)

Vehicle information (transmission type)

MT, AT, CVT, MMT, SMT, HV/EV - AT or Unknown

Displays the type of transmission

-

Power Steering Control Module Equipped Information

Power steering control module is installed or not

Absence or Presence

Absence: Not equipped

Presence: Equipped

-

VGRS ECU Equipped Information

Variable gear ratio steering system function availability

Unknown, Absence or Presence

Unknown: Vehicle information not confirmed

Absence: Variable gear ratio steering system absence

Presence: Variable gear ratio steering system presence

-

PCS Function ON/OFF State Stored

Storage condition of PCS ON/OFF condition when the PCS function is off and the ignition switch is turned from off to ON

Stored or Not Stored

Stored: Pre-collision system maintains off

Not stored: Pre-collision system always turns on

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

PCS Warning Timing State Stored 2

Storage condition of warning sensitivity setting when the PCS function is on and the ignition switch is turned from off to ON

Stored or Not Stored

Stored: Sensitivity settings are maintained as previous value

Not stored: Sensitivity is reset to default setting

"PCS Function ON/OFF State Stored 2" is a customizable item which can be set using the Techstream.

PCS Warning Timing State Stored 3

Storage condition of warning sensitivity setting when the PCS function is off and the ignition switch is turned from off to ON

Stored or Not Stored

Stored: Sensitivity settings are maintained as previous value

Not stored: Sensitivity is reset to default setting

"PCS Function ON/OFF State Stored 3" is a customizable item which can be set using the Techstream.

PCS Warning Timing State Stored 1

Storage condition of warning sensitivity setting when the PCS function is turned from off to on while the ignition switch is ON

Stored or Not Stored

Stored: Sensitivity settings are maintained as previous value

Not stored: Sensitivity is reset to default setting

"PCS Function ON/OFF State Stored 1" is a customizable item which can be set using the Techstream.

ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(a) Perform Active Test according to the display on the Techstream.

Body Electrical > Pre-Collision System > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

PCS Warning Buzzer

Sounds the meter buzzer

Active / Not Active

Test possible with ignition switch ON, vehicle stopped