Diagnostic Trouble Code Chart [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

DYNAMIC RADAR CRUISE CONTROL SYSTEM

DTC Code	Detection Item	See
C1A01	Driving Support ECU	Refer to DTC C1A01: Driving Support ECU [08/2013 - ]
C1A02	Vehicle Information Not Obtained	Refer to DTC C1A02: Vehicle Information Not Obtained [08/2013 - ]
C1A03	Driving Support ECU Internal Logical Error	Refer to DTC C1A03: Driving Support ECU Internal Logical Error; DTC C1A06: Stop Light Switch Input Circuit [08/2013 - ]
C1A05	Stop Light Switch Circuit	Refer to DTC C1A05: Stop Light Switch Circuit [08/2013 - ]
C1A06	Stop Light Switch Input Circuit	Refer to DTC C1A03: Driving Support ECU Internal Logical Error; DTC C1A06: Stop Light Switch Input Circuit [08/2013 - ]
C1A0A	Front Radar Sensor Region Code Mismatch	Refer to DTC C1A0A: Front Radar Sensor Region Code Mismatch [08/2013 - ]
C1A10	Front Radar Sensor	Refer to DTC C1A10: Front Radar Sensor [08/2013 - ]
C1A40	ENG / EHV Device	Refer to DTC C1A40: ENG / EHV Device [08/2013 - ]
C1A41	Brake Request Value Mismatch between ENG / EHV and Driving Support ECU	Refer to DTC C1A41: Brake Request Value Mismatch between ENG / EHV and Driving Support ECU [08/2013 - ]
C1A4A	Skid Control Buzzer Circuit	Refer to DTC C1A4A: Skid Control Buzzer Circuit [08/2013 - ]
C1A4B	Stop Light Relay Circuit	Refer to DTC C1A4B: Stop Light Relay Circuit [08/2013 - ]
C1A50	Brake System	Refer to DTC C1A50: Brake System [08/2013 - ]
C1A11	Front Radar Sensor Incorrect Axial Gap	Refer to DTC C1A11: Front Radar Sensor Incorrect Axial Gap; DTC C1A14: Front Radar Sensor Beam Axis Not Adjusted [08/2013 - ]
C1A14	Front Radar Sensor Beam Axis Not Adjusted	Refer to DTC C1A11: Front Radar Sensor Incorrect Axial Gap; DTC C1A14: Front Radar Sensor Beam Axis Not Adjusted [08/2013 - ]
P1615	Communication Error from Distance Control ECU to HV ECU	Refer to DTC P1615: Communication Error from Distance Control ECU to HV ECU [08/2013 - ]
U0125	Lost Communication with Yaw Rate Sensor Module	Refer to DTC U0125: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0293: Lost Communication with HV ECU; DTC U1104: Lost Communication with Driving Support ECU [08/2013 - ]
U0126	Lost Communication with Steering Angle Sensor Module	Refer to DTC U0125: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0293: Lost Communication with HV ECU; DTC U1104: Lost Communication with Driving Support ECU [08/2013 - ]
U0129	Lost Communication with Brake System Control Module	Refer to DTC U0125: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0293: Lost Communication with HV ECU; DTC U1104: Lost Communication with Driving Support ECU [08/2013 - ]
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	Refer to DTC U0235: Lost Communication with Cruise Control Front Distance Range Sensor [08/2013 - ]
U0293	Lost Communication with HV ECU	Refer to DTC U0125: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0293: Lost Communication with HV ECU; DTC U1104: Lost Communication with Driving Support ECU [08/2013 - ]
U1104	Lost Communication with Driving Support ECU	Refer to DTC U0125: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0293: Lost Communication with HV ECU; DTC U1104: Lost Communication with Driving Support ECU [08/2013 - ]