Toyota Avalon (XX50): Electronically Controlled Brake System(for Gasoline Model)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Brake / Brake Control / Dynamic Control Systems / Electronically Controlled Brake System(for Gasoline Model)

ABS Operates Before Necessary When Braking. ABS Warning Light does not Come ON. ABS Warning Light Remains ON

Brake Actuator Operation Sound is Loud during Initial Check. Brake Hold Operated Indicator Light Circuit. Brake Hold Standby Indicator Light Circuit

Brake Warning Light does not Come ON. Brake Warning Light Remains ON. Open Circuit in ABS Motor Relay Circuit (C146C)

Open Circuit in ABS Solenoid Relay Circuit (C146E). Air Bag Circuit (C147D). Engine Control System Malfunction (C1201)

NE Signal Circuit (C1224). SA1 Solenoid Circuit (C1225-C1228,C1468,C1469,C146A,C146B). Steering Angle Sensor Circuit (C1231)

Yaw Rate Sensor (C1234,C1472,C1474)

Speed Sensor Rotor Faulty (C1237)

Low or High Power Supply Voltage (C1241). Master Cylinder Pressure Sensor (C1246). Open Circuit in Stop Light Switch Circuit (C1249)

Error in Matching of ECUs (C1288). Skid Control ECU Malfunction (C1300). Open Circuit in Right Front Speed Sensor Circuit (C1330-C1467)

Zero Point Calibration of Deceleration Sensor undone (C1336). Stop Light Relay Malfunction (C1380). IG1 Voltage Supply too High (C1417)

Deceleration Sensor Internal Circuit (C1419,C1435). Malfunction in Deceleration Sensor (C1420). Open in Stop Light Switch Circuit (C1425)

Stop Switch OFF Stuck (C1426)

Motor Circuit (C1428). Steering Angle Sensor Power Source Voltage (C1432). Steering Angle Sensor Internal Circuit (C1433)

Steering Angle Sensor Output (C1434). Malfunction in Yaw Rate Sensor (C1436). Steering Angle Sensor Initialization Incomplete (C1439,C1445)

Yaw Rate Sensor Output Value Malfunction (C1448). Calibration. Check For Intermittent Problems

Data List / Active Test

Diagnosis System. Diagnostic Trouble Code Chart. Dtc Check / Clear

Excessive Brake Pedal Travel (No Fluid Leaks and No Air in System). Fail-safe Chart. Freeze Frame Data

How To Proceed With Troubleshooting. Parts Location. Precaution

Problem Symptoms Table. Slip Indicator Light does not Come ON. Slip Indicator Light Remains ON

System Diagram. Terminals Of Ecu. Test Mode Procedure

TRAC does not Operate. Vehicle Control History. VSC does not Operate or VSC does not Operate Correctly

VSC OFF Switch Circuit

Brake Pedal Stroke Sensor(for Hv Model)

ABS Operates Before Necessary When Braking. ABS Warning Light does not Come ON. ABS Warning Light Remains ON

See More:

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Hybrid Control System: Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure (P0AA649,P1C7C49-P1C7F49)
DESCRIPTION The hybrid vehicle control ECU monitors the battery voltage sensor and detects insulation malfunctions in the high-voltage system. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P0AA649 Hybrid/EV Battery Voltage System Isolation Internal Electronic Failu ...

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

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