Section 381 (Electronically Controlled Brake System - Diagnostic Codes (C1415-U0073) & Symptom Tests (Hybrid))
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.
- ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model)
- DTC C1415: Rear Speed Sensor RH Circuit Output; DTC C1416: Rear Speed Sensor LH Circuit Output [04/2018 - ]
- DTC C1417: IG1 Voltage Supply too High; DTC C14DF: Brake Pressure Control Solenoid Supply Voltage Circuit High [04/2018 - ]
- DTC C1419: Deceleration Sensor Internal Circuit; DTC C1435: Yaw Rate Sensor Internal Circuit [04/2018 - ]
- DTC C1420: Malfunction in Deceleration Sensor [04/2018 - ]
- DTC C1425: Open in Stop Switch Circuit; DTC P0573: Brake Switch "A" Circuit High [04/2018 - ]
- DTC C1427: Malfunction in Motor [04/2018 - ]
- DTC C1428: Motor Circuit [04/2018 - ]
- DTC C1432: Steering Angle Sensor Power Source Voltage [04/2018 - ]
- DTC C1433: Steering Angle Sensor Internal Circuit [04/2018 - ]
- DTC C1434: Steering Angle Sensor Output [04/2018 - ]
- DTC C1436: Malfunction in Yaw Rate Sensor [04/2018 - ]
- DTC C1439: Steering Angle Sensor Initialization Incomplete; DTC C1445: Vehicle Driven with Steering Angle Sensor not Initialized [04/2018 - ]
- DTC C1440: Steering Angle Sensor Unusual Bank Angle Detected [04/2018 - ]
- DTC C1442: Invalid Data Received from Deceleration Sensor; DTC C1443: Invalid Data Received from Yaw Rate Sensor [04/2018 - ]
- DTC C1451: Motor Drive Permission Malfunction [04/2018 - ]
- DTC C146C: Open Circuit in ABS Motor Relay Circuit; DTC C146D: Short Circuit in ABS Motor Relay Circuit [04/2018 - ]
- DTC C146E: Open Circuit in ABS Solenoid Relay Circuit; DTC C146F: Short Circuit in ABS Solenoid Relay Circuit [04/2018 - ]
- DTC C147D: Air Bag Circuit [04/2018 - ]
- DTC C14B0: Reaction Force Pressure Sensor Power Supply Voltage Malfunction; DTC C14B1: Reaction Force Pressure Sensor Communication Malfunction; DTC C14B2: Reaction Force Pressure Sensor Internal Malfunction; DTC C14B4: Reaction Force Pressure Sensor Output Malfunction; DTC C14B5: Reaction Force Pressure Sensor Data Invalid; DTC C14C0: Servo Pressure Sensor Power Supply Voltage Malfunction; DTC C14C1: Servo Pressure Sensor Communication Malfunction; DTC C14C2: Servo Pressure Sensor Internal Malfunction; DTC C14C4: Servo Pressure Sensor Output Malfunction; DTC C14C5: Servo Pressure Sensor Data Invalid; DTC C14D0: Accumulator Pressure Sensor Power Supply Voltage Malfunction; DTC C14D1: Accumulator Pressure Sensor Communication Malfunction; DTC C14D2: Accumulator Pressure Sensor Internal Malfunction; DTC C14D3: Accumulator Pressure Sensor Output Malfunction; DTC C14D4: Accumulator Pressure Sensor Data Invalid [04/2018 - ]
- DTC C14B3: Reaction Force Pressure Sensor Zero Point Malfunction [04/2018 - ]
- DTC C14B6: Stroke Sensor / Reaction Force Pressure Sensor Output Inconsistent [04/2018 - ]
- DTC C14C3: Servo Pressure Sensor Zero Point Malfunction [04/2018 - ]
- DTC C14D5: Accumulator Pressure Sensor Stuck [04/2018 - ]
- DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0110: Lost Communication with Drive Motor Control Module "A"; DTC U0120: Lost Communication With Starter / Generator Control Module; DTC U0124: Lost Communication With Lateral Acceleration Sensor Module; DTC U0126: Lost Communication With Steering Angle Sensor Module; DTC U0128: Lost Communication With EPB Module; DTC U0151: Lost Communication With Restraints Control Module; DTC U0293: Lost Communication with Hybrid Vehicle Control System [04/2018 - ]
- Symptom Tests
- ABS Warning Light Remains ON [04/2018 - ]
- ABS Warning Light does not Come ON [04/2018 - ]
- Brake Warning Light Remains ON [04/2018 - ]
- Brake Warning Light does not Come ON [04/2018 - ]
- Brake Control Warning Light Remains ON [04/2018 - ]
- Brake Control Warning Light does not Come ON [04/2018 - ]
- Slip Indicator Light Remains ON [04/2018 - ]
- Slip Indicator Light does not Come ON [04/2018 - ]
- TRAC does not Operate [04/2018 - ]
- Excessive Brake Pedal Travel (No Fluid Leaks and No Air in System) [04/2018 - ]
- ABS does not Operate [04/2018 - ]
- ABS Operates Before Necessary When Braking [04/2018 - ]
- VSC does not Operate or VSC does not Operate Correctly [04/2018 - ]
- Abnormal Brake Pedal Response on First Depression [04/2018 - ]
- Brake Actuator Operation Sound is Loud during Initial Check [04/2018 - ]
- Abnormal Noise is Heard from the Engine Compartment when Depressing the Brake Pedal [04/2018 - ]
- Curcuit Tests