Diagnostic Trouble Code Chart [09/2020 - ]

WARNING: This page does not describe the selected car, but rather 19 other vehicles, including the 2024 Lexus RC 350, 2024 Lexus RC 300, 2023 Lexus RC 350, 2023 Lexus RC 300, and 2022 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.

FOUR WHEEL DRIVE CONTROL SYSTEM

DTC No.	Detection Item	Warning Indicate	Memory	Link
C120C	Linear Solenoid Power Supply System Malfunction	Comes on	DTC stored	Refer to DTC C120C: Linear Solenoid Power Supply System Malfunction [09/2020 - ]
C1241	Low or High Power Supply Voltage	Comes on	DTC stored	Refer to DTC C1241: Low or High Power Supply Voltage [09/2020 - ]
C1296	ABS Malfunction	Comes on	DTC stored	Refer to DTC C1296: ABS Malfunction [09/2020 - ]
C1297	Steering Angle Sensor	Does not come on	DTC stored	Refer to DTC C1297: Steering Angle Sensor [09/2020 - ]
C1298	Linear Solenoid Circuit	Comes on	DTC stored	Refer to DTC C1298: Linear Solenoid Circuit [09/2020 - ]
C1299	Cancellation of 4WD Control	Comes on	DTC stored	Refer to DTC C1299: Cancellation of 4WD Control [09/2020 - ]
U0073	Control Module Communication Bus Off	Comes on	DTC stored	Refer to DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0126: Lost Communication With Steering Angle Sensor Module; DTC U0129: Lost Communication With Brake System Control Module [09/2020 - ]
U0100	Lost Communication With ECM/PCM "A"	Does not come on	DTC stored	Refer to DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0126: Lost Communication With Steering Angle Sensor Module; DTC U0129: Lost Communication With Brake System Control Module [09/2020 - ]
U0126	Lost Communication With Steering Angle Sensor Module	Does not come on	DTC stored	Refer to DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0126: Lost Communication With Steering Angle Sensor Module; DTC U0129: Lost Communication With Brake System Control Module [09/2020 - ]
U0129	Lost Communication With Brake System Control Module	Comes on	DTC stored	Refer to DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0126: Lost Communication With Steering Angle Sensor Module; DTC U0129: Lost Communication With Brake System Control Module [09/2020 - ]