X0455
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Steering Angle Sensor Wrong Installation
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History of steering angle sensor being installed incorrectly
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Slip indicator light illuminates
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Brake hold operated indicator light blinks*2
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to Steering Angle Sensor Wrong Installation (X0455).
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X0456
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Yaw Rate Sensor Wrong Installation
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History of yaw rate sensor (airbag sensor assembly) being installed incorrectly
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Slip indicator light illuminates
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Brake hold operated indicator light blinks*2
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to Yaw Rate Sensor Wrong Installation (X0456).
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X2004
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Speed Sensor Malfunction
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History of wheel speed sensor abnormal signal being received
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Brake system warning light (yellow indicator) illuminates
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Slip indicator light illuminates
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Brake hold operated indicator light blinks*2
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
Refer to the following diagnosis procedure:
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Using the GTS, perform a Health Check.
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Proceed to related output DTC or vehicle control history (RoB).
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X2005
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Hybrid/EV Powertrain Control System Malfunction
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History of a malfunction in the HV system
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Brake system warning light (yellow indicator) illuminates
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Slip indicator light illuminates
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Brake hold operated indicator light blinks*2
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to the following diagnosis procedure:
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Using the GTS, perform a Health Check.
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Proceed to related output DTC or vehicle control history (RoB).
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X204C
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Zero Point Calibration of Yaw Rate Sensor Undone
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History of incomplete yaw rate sensor zero point calibration
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Slip indicator light illuminates
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Brake hold operated indicator light blinks*2
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to Zero Point Calibration of Yaw Rate Sensor Undone (X204C).
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X207D
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Brake Pressure Sensor "A" Malfunction
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History of master cylinder pressure sensor (brake actuator assembly) abnormal signal being received
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Brake system warning light (yellow indicator) illuminates
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
Refer to the following diagnosis procedure:
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Using the GTS, perform a Health Check.
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Proceed to related output DTC or vehicle control history (RoB).
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X2086
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SRS Airbag Malfunction
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History of receiving an abnormal secondary collision brake control request signal from airbag sensor assembly
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-
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to How to Proceed with Troubleshooting in Airbag System.
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X208A
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Zero Point Calibration of Skid Control ECU Initialization Malfunction
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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 skid control ECU zero point calibration cleared
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Slip indicator light illuminates
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Brake hold operated indicator light blinks*2
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to Zero Point Calibration of Skid Control ECU Initialization Malfunction (X208A).
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X208B
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EPB Motor Continuous Operation Request
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History of system suspended to prevent overheat of parking brake actuator assembly when electric parking brake was used repeatedly
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Brake hold operated indicator light blinks*2
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Parking brake indicator light blinks
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Output ECU: Skid control ECU (brake actuator assembly)
HINT:
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EPB: Electric Parking Brake System
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Explain that system was suspended to prevent overheating of parking brake actuator assembly when electric parking brake was used repeatedly.
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X208E
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Power Steering Control Module Malfunction
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History of power steering system malfunction
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-
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to the following diagnosis procedure:
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Using the GTS, perform a Health Check.
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Proceed to related output DTC or vehicle control history (RoB).
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X2096
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Pre-Collision Brake
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History of pre-collision brake operation
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In accordance with pre-collision system behavior
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Output ECU: Electric brake booster (brake booster with master cylinder assembly) and skid control ECU (brake actuator assembly)
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X2098
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Pre-Collision Brake Assist
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History of pre-collision brake assist operation
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In accordance with pre-collision system behavior
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Output ECU: Electric brake booster (brake booster with master cylinder assembly) and skid control ECU (brake actuator assembly)
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X20A0
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ABS
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History of ABS operation
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Slip indicator light blinks
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Output ECU: Electric brake booster (brake booster with master cylinder assembly) and skid control ECU (brake actuator assembly)
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X20A1
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VSC
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History of VSC operation
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Slip indicator light blinks
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Output ECU: Electric brake booster (brake booster with master cylinder assembly) and skid control ECU (brake actuator assembly)
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X20A2
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TRC(TRAC)
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History of TRAC operation
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Slip indicator light blinks
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Output ECU: Electric brake booster (brake booster with master cylinder assembly) and skid control ECU (brake actuator assembly)
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X20A5
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Hill Start Assist
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History of hill start assist operation
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-
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Output ECU: Electric brake booster (brake booster with master cylinder assembly) and skid control ECU (brake actuator assembly)
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X20A7
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Brake Assist
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History of brake assist operation
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-
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Output ECU: Electric brake booster (brake booster with master cylinder assembly) and skid control ECU (brake actuator assembly)
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X20A8
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Secondary Collision Brake
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History of secondary collision brake operation
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-
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Output ECU: Electric brake booster (brake booster with master cylinder assembly) and skid control ECU (brake actuator assembly)
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X2150
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Electronic Brake Booster Control Module "A" (Low Supply Voltage Level1)
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History of voltage abnormality judgment due to low voltage of the electric brake booster (brake booster with master cylinder assembly) +BS terminal
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-
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
Refer to the Charging System on-vehicle inspection.
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X2151
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Electronic Brake Booster Control Module "A" (Low Supply Voltage Level2)
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History of a detected voltage value that is lower than when X2150 was output
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Brake system warning light (yellow indicator) illuminates
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
Refer to the Charging System on-vehicle inspection.
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X2152
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Electronic Brake Booster Control Module "A" (Low Supply Voltage Shutdown Level)
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History of system stop judgment due to low voltage of the electric brake booster (brake booster with master cylinder assembly) +BS terminal
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Brake system warning light (yellow indicator) illuminates
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Brake system warning light (red indicator) illuminates*1
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Buzzer sounds
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
Refer to the Charging System on-vehicle inspection.
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X2153
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Electronic Brake Booster Control Module "A" (Over Supply Voltage Level1)
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History of voltage abnormality judgment due to high voltage of the electric brake booster (brake booster with master cylinder assembly) +BS terminal
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-
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
Refer to the Charging System on-vehicle inspection.
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X2154
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Electronic Brake Booster Control Module "A" (Over Supply Voltage Level2)
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History of a detected voltage value that is higher than when X2153 was output
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Brake system warning light (yellow indicator) illuminates
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
Refer to the Charging System on-vehicle inspection.
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X2157
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Auto Brake Target Volume Flow Signal Malfunction
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History of automatic brake target flow rate signal abnormality received by the electric brake booster (brake booster with master cylinder assembly)
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Brake system warning light (yellow indicator) illuminates
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
Refer to the following diagnosis procedure:
-
Using the GTS, perform a Health Check.
-
Proceed to related output DTC or vehicle control history (RoB).
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X215D
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Stop Lamp Switch Information Malfunction
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History stored by the skid control ECU (brake actuator assembly) when the electric brake booster (brake booster with master cylinder assembly) has detected a brake pedal operation condition abnormality
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Brake system warning light (yellow indicator) illuminates
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ABS warning light illuminates
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Slip indicator light illuminates
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Brake hold operated indicator light blinks*2
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to the following diagnosis procedure:
-
Using the GTS, perform a Health Check.
-
Proceed to related output DTC or vehicle control history (RoB).
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X215E
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Backup Power Supply Mode State
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History of brake control power supply assembly supplying power when electric brake booster (brake booster with master cylinder assembly) +BS terminal voltage had decreased
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Brake system warning light (yellow indicator) illuminates
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Brake system warning light (red indicator) illuminates*1
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Buzzer sounds continuously
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
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X215F
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Brake Pressure Control Solenoid Leak
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History stored by the skid control ECU (brake actuator assembly) when it has been detected that the master cylinder pressure of the electric brake booster (brake booster with master cylinder assembly) is too low
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-
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to the brake system function check.
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X219A
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Gear Shift Control Module Malfunction
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History of electronic shift lever system malfunction
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-
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to the following diagnosis procedure:
-
Using the GTS, perform a Health Check.
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Proceed to related output DTC or vehicle control history (RoB).
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X21A1
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Electronic Brake Booster Motor "A" High Temperature(Level1)
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History of electric brake booster (brake booster with master cylinder assembly) main unit temperature detected at 123 °C (253 °F) or more and less than 142 °C (288 °F)
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-
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
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X21A3
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EBR Activation Request Flag Malfunction
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History of skid control ECU (brake actuator assembly) having prohibited brake control request from other ECU
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Brake system warning light (yellow indicator) illuminates
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Output ECU: Skid control ECU (brake actuator assembly)
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X21A4
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Force Blending Signal Malfunction
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History stored by the skid control ECU (brake actuator assembly) when the electric brake booster (brake booster with master cylinder assembly) has received a counterforce control signal abnormality
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Brake system warning light (yellow indicator) illuminates
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to the following diagnosis procedure:
-
Using the GTS, perform a Health Check.
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Proceed to related output DTC or vehicle control history (RoB).
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X21A5
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Electronic Brake Booster Input Stroke Signal Malfunction
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History of relative displacement sensor (brake booster with master cylinder assembly) output abnormality received
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-
Brake system warning light (yellow indicator) illuminates
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ABS warning light illuminates
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to the following diagnosis procedure:
-
Using the GTS, perform a Health Check.
-
Proceed to related output DTC or vehicle control history (RoB).
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X21A6
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Actual Electronic Brake Booster Input Stroke Signal Malfunction
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History of skid control ECU (brake actuator assembly) receiving relative displacement sensor abnormal signal from electric brake booster (brake booster with master cylinder assembly)
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Brake system warning light (yellow indicator) illuminates
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ABS warning light illuminates
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to the following diagnosis procedure:
-
Using the GTS, perform a Health Check.
-
Proceed to related output DTC or vehicle control history (RoB).
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X2443
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Electronic Brake Booster Control Module "A" (Low Voltage Shutdown Level) Remote Control Parking
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History of drop in electric brake booster (brake booster with master cylinder assembly) power supply voltage while remote parking function was operating
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-
ABS warning light illuminates
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Brake hold operated indicator light blinks*2
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Output ECU: Electric brake booster (brake booster with master cylinder assembly)
Refer to the following diagnosis procedure:
-
Using the GTS, perform a Health Check.
-
Proceed to related output DTC or vehicle control history (RoB).
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X280E
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Side Wind Suppression Control Operation Request
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History of side wind suppression control operation
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-
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Output ECU: Skid control ECU (brake actuator assembly)
HINT:
During operation, the slip indicator light blinks.
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XF01B
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ECU Security Key Not Registered
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ECU security key has not been registered
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*3
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Output ECU: Electric brake booster (brake booster with master cylinder assembly) and skid control ECU (brake actuator assembly)
Refer to the update ECU security key.
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XFFF7
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Hybrid System Internal Failure
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History of skid control ECU (brake actuator assembly) receiving regeneration control malfunction signals 2 times consecutively from hybrid vehicle control ECU.
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Brake system warning light (yellow indicator) illuminates
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Output ECU: Skid control ECU (brake actuator assembly)
Refer to How to Proceed with Troubleshooting in hybrid control system.
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