VEHICLE CONTROL HISTORY (RoB) [08/2021 -]
WARNING: This page is about a different car, the 2022 Toyota Avalon, 2021 Toyota Avalon, 2020 Toyota Avalon, and 2019 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- DESCRIPTION
- Vehicle Control History (RoB) is a function that captures and stores ECU data when triggered by specific vehicle behavior.
- If the customer states that the engine stalled or will not start, it may be possible to diagnose 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.
Refer to DATA LIST / ACTIVE TEST [08/2021 -]
- 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 (ELECTRIC PARKING BRAKE SYSTEM)
- Operate the Techstream to enter the Vehicle Control History (RoB).
Chassis > Electric Parking Brake > Utility
Tester Display Vehicle Control History (RoB)
VEHICLE CONTROL HISTORY ITEMCode Tester Display Measurement Item User Notification Diagnostic Note X2003 Brake Control System Malfunction History of receiving a skid control ECU (brake booster with master cylinder assembly) malfunction signal from the parking brake ECU (brake actuator assembly) Brake system warning light (yellow indicator) illuminates Refer to How to Proceed with Troubleshooting in Electronically Controlled Brake System.
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 -]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 - Parking brake indicator light blinks
- Brake system warning light (yellow indicator) illuminates
Explain that system was suspended to prevent overheating of parking brake actuator assembly when electric parking brake was used repeatedly. X219C EPB Lock Control Run History of vehicle speed occurring after operation of the EPB switch Brake system warning light (yellow indicator) illuminates HINT:
EPB: Electric Parking Brake System - Operate the Techstream to enter the Vehicle Control History (RoB).
- VEHICLE CONTROL HISTORY (AIRBAG SYSTEM)
HINT:
A part of the control history can be confirmed using the vehicle control history.
Refer to VEHICLE CONTROL HISTORY [08/2021 -]