Toyota Camry owners & service manuals

Toyota Camry (XV70): VEHICLE CONTROL HISTORY (RoB)

VEHICLE CONTROL HISTORY (RoB)

DESCRIPTION

  • Vehicle Control History (RoB) is a function that captures and stores ECU data when triggered by specific vehicle behavior.
  • It may be possible to determine the cause of the malfunction by checking the vehicle history information and freeze frame data.
  • The number of possible stored Freeze Frame Data sets, whether multi Freeze Frame Data is available, the number of freeze frame points, Freeze Frame Data items, the ECU internal range, etc., is different depending on the stored group.
  • The stored data items for Vehicle Control History (RoB) Freeze Frame Data are different depending on the stored group. When the value of a data item does not change across all points, only the value of the detection point will be displayed. The contents of the Freeze Frame Data is almost the same as that of the Data List.

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PRECAUTIONS

  • As Vehicle Control History (RoB) may be overwritten whenever the trigger conditions are met, make sure to save Vehicle Control History (RoB) before performing any inspections.
  • As Vehicle Control History (RoB) may be stored when performing an Active Test, learning, etc., make sure to clear the Vehicle Control History (RoB) before returning the vehicle to the customer.

CHECK VEHICLE CONTROL HISTORY (RoB) (VEHICLE STABILITY CONTROL SYSTEM AND ELECTRIC PARKING BRAKE SYSTEM)

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / Brake/EPB / Utility / Vehicle Control History (RoB).

Chassis > Brake > Utility

Tester Display

Vehicle Control History (RoB)

Vehicle Control History (RoB) Item

Code

Tester Display

Measurement Item

User Notification

Diagnostic Note

X0451

FL Speed Sensor Wrong Installation

History of front speed sensor LH being installed incorrectly

  • Brake system warning light (red indicator) illuminates*1
  • Brake system warning light (yellow indicator) illuminates
  • ABS warning light illuminates
  • Slip indicator light illuminates
  • Brake hold operated indicator light blinks*2

Refer to FL Speed Sensor Wrong Installation (X0451).

X0452

FR Speed Sensor Wrong Installation

History of front speed sensor RH being installed incorrectly

  • Brake system warning light (red indicator) illuminates*1
  • Brake system warning light (yellow indicator) illuminates
  • ABS warning light illuminates
  • Slip indicator light illuminates
  • Brake hold operated indicator light blinks*2

Refer to FR Speed Sensor Wrong Installation (X0452).

X0453

RL Speed Sensor Wrong Installation

History of rear speed sensor LH being installed incorrectly

  • Brake system warning light (red indicator) illuminates*1
  • Brake system warning light (yellow indicator) illuminates
  • ABS warning light illuminates
  • Slip indicator light illuminates
  • Brake hold operated indicator light blinks*2

Refer to RL Speed Sensor Wrong Installation (X0453).

X0454

RR Speed Sensor Wrong Installation

History of rear speed sensor RH being installed incorrectly

  • Brake system warning light (red indicator) illuminates*1
  • Brake system warning light (yellow indicator) illuminates
  • ABS warning light illuminates
  • Slip indicator light illuminates
  • Brake hold operated indicator light blinks*2

Refer to RR Speed Sensor Wrong Installation (X0454).

X0455

Steering Angle Sensor Wrong Installation

History of steering angle sensor being installed incorrectly

  • Slip indicator light illuminates
  • Brake hold operated indicator light blinks*2

-

X0456

Yaw Rate Sensor Wrong Installation

History of yaw rate sensor (airbag sensor assembly) being installed incorrectly

  • Slip indicator light illuminates
  • Brake hold operated indicator light blinks*2

Refer to Yaw Rate Sensor Wrong Installation (X0456).

X2079

Communication Error from Brake Control Module to Engine Control Module

History of receiving an invalid communication signal from ECM

  • Slip indicator light illuminates
  • Brake hold operated indicator light blinks*2
  1. Using the Techstream, perform a Health Check.
  2. Refer to the flow chart(s) for the output DTCs.

X2086

SRS Airbag Malfunction

History of receiving an abnormal secondary collision brake control request signal from airbag sensor assembly

-

Refer to How to Proceed with Troubleshooting in Airbag System.

X2087

Engine Malfunction

History of receiving an SFI system abnormal signal from ECM

  • Slip indicator light illuminates
  • Brake hold operated indicator light blinks*2

Refer to How to Proceed with Troubleshooting in SFI System.

for 2GR-FKS:

for A25A-FKS:

X208A

Zero Point Calibration of Steering Angle Sensor Initialization Malfunction

History of failure in acquiring steering angle zero point even after the vehicle is driven in a straight line at a vehicle speed of 15 km/h (9 mph) or more for 115 seconds or more with the steering angle sensor zero point calibration cleared

  • Slip indicator light illuminates
  • Brake hold operated indicator light blinks*2

Refer to Zero Point Calibration of Steering Angle Sensor Initialization Malfunction (X208A).

X208B

EPB Motor Continuous Operation Request

History of system suspended to prevent overheat of parking brake actuator assembly when electric parking brake was used repeatedly

  • Brake hold operated indicator light blinks*2
  • Parking brake indicator light (red) blinks
  • EPB: Electric Parking Brake System
  • Explain that system was suspended to prevent overheating of parking brake actuator assembly when electric parking brake was used repeatedly.

X2096

Pre-Collision Brake

History of pre-collision brake operation

In accordance with Pre-collision System behavior

-

X2098

Pre-Collision Brake Assist

History of pre-collision brake assist operation

In accordance with Pre-collision System behavior

-

X20A0

ABS

History of ABS operation

-

-

X20A1

VSC

History of VSC operation

Slip indicator light blinks

-

X20A2

TRC

TRC(TRAC)

History of TRC operation

Slip indicator light blinks

-

X20A5

Hill Start Assist

History of hill start assist operation

-

-

X20A7

Brake Assist

History of brake assist operation

-

-

X20A8

Secondary Collision Brake

History of secondary collision brake operation

-

-

X20A9

ABS Continuous Operation Request

History of ABS being operated for 60 seconds or more

  • Brake system warning light (red indicator) illuminates*1
  • ABS warning light illuminates
  • Slip indicator light illuminates
  • Brake hold operated indicator light blinks*2

-

X20AA

VSC Continuous Operation Request

History of VSC being operated for 10 seconds or more

  • ABS warning light illuminates
  • Slip indicator light illuminates
  • Brake hold operated indicator light blinks*2

-

  • *1: The brake system warning light (red indicator) illuminates when any of the following vehicle conditions are met:
    1. When EBD is prohibited
    2. When a malfunction has occurred
    3. When failure compensation control is prohibited
  • *2: When the vehicle is put into the following vehicle conditions and the brake hold switch (electric parking brake switch assembly) is turned on, the brake hold operation light blinks.
    • Conditions required for operation standby:
      1. The driver door is closed.
      2. The driver seat belt is fastened.

CLEAR VEHICLE CONTROL HISTORY (RoB) (VEHICLE STABILITY CONTROL SYSTEM AND ELECTRIC PARKING BRAKE SYSTEM)

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / Brake/EPB / Utility / Vehicle Control History (RoB).

Chassis > Brake > Utility

Tester Display

Vehicle Control History (RoB)

(f) Press the DTC clear button.

NOTICE:

By performing this procedure, all stored Vehicle Control History (RoB) will be cleared.

CHECK VEHICLE CONTROL HISTORY (AIRBAG SYSTEM)

HINT:

A part of the control history can be confirmed using the vehicle control history.

Click here

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    DESCRIPTION The airbag sensor assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition. The skid control ECU (brake actuator assembly) calibrates the sensitivity of

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    DESCRIPTION The airbag sensor assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition. These DTCs are stored when the skid control ECU (brake actuator assembly) re

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    DESCRIPTION Each speed sensor detects wheel speed and sends signals to the skid control ECU (brake actuator assembly). These signals are used by the ABS control. The speed sensor detects the magneti

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