Tech Tips
If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.
| DTC Code | Detection Item | Output ECU (Tester Item) | See page |
|---|---|---|---|
| C1A01 | Driving Support ECU | Seat belt control ECU (Pre-Crash 1) | |
| C1A0A | Front Radar Sensor Region Code Mismatch | Seat belt control ECU (Pre-Crash 1) | |
| C1A0B | Rear Radar Sensor Region Code Mismatch | Seat belt control ECU (Pre-Crash 1) | |
| C1A0C | Object Recognition Camera Region Code Mismatch | Seat belt control ECU (Pre-Crash 1) | |
| C1A10 | Front Radar Sensor | Seat belt control ECU (Pre-Crash 1) | |
| C1A11 | Front Radar Sensor Incorrect Axial Gap | Seat belt control ECU (Pre-Crash 1) | |
| C1A12 | Rear Radar Sensor | Seat belt control ECU (Pre-Crash 1) | |
| C1A13 | Rear Radar Sensor Incorrect Axial Gap | Seat belt control ECU (Pre-Crash 1) | |
| C1A14 | Front Radar Sensor Beam Axis Not Adjusted | Seat belt control ECU (Pre-Crash 1) | |
| C1A15 | Rear Radar Sensor Beam Axis Not Adjusted | Seat belt control ECU (Pre-Crash 1) | |
| C1A20 | Object Recognition ECU | Seat belt control ECU (Pre-Crash 1) | |
| C1A21 | Object Recognition Camera | Seat belt control ECU (Pre-Crash 1) | |
| C1A22 | Object Recognition Camera Incorrect Axial Gap | Seat belt control ECU (Pre-Crash 1) | |
| C1A23 | Object Recognition Camera Initialization Incomplete | Seat belt control ECU (Pre-Crash 1) | |
| C1A25 | Object Recognition Camera Recognizing Distance Discrepancy | Seat belt control ECU (Pre-Crash 1) | |
| C1A26 | Lost Communication with Gigabit Video Interface | Seat belt control ECU (Pre-Crash 1) | |
| C1A30 | Driver Monitor ECU | Seat belt control ECU (Pre-Crash 1) | |
| C1A31 | Driver Monitor Camera | Seat belt control ECU (Pre-Crash 1) | |
| C1A41 | Brake Request Value Mismatch between ENG / EHV and Driving Support ECU | Seat belt control ECU (Pre-Crash 1) | |
| C1A46 | Yaw Rate Sensor | Seat belt control ECU (Pre-Crash 1) | |
| C1A47 | Steering Angle Sensor | Seat belt control ECU (Pre-Crash 1) | |
| C1A4A | Skid Control Buzzer Circuit | Seat belt control ECU (Pre-Crash 1) | |
| C1A6A | Infrared Signal Circuit | Seat belt control ECU (Pre-Crash 1) | |
| C1A65 | Right Active Headrest System | Seat belt control ECU (Pre-Crash 1) | |
| C1A9A | Front Capacitive Sensor RH | Seat belt control ECU (Pre-Crash 1) | |
| C1A9B | Open in Front Motor Line RH Circuit | Seat belt control ECU (Pre-Crash 1) | |
| C1A9C | Front Headrest Control ECU RH Writing Error | Seat belt control ECU (Pre-Crash 1) | |
| C1A66 | Left Active Headrest System | Driving support ECU (Pre-Crash 2) | |
| C1A9D | Front Capacitive Sensor LH | Driving support ECU (Pre-Crash 2) | |
| C1A9E | Open in Front Motor Line LH Circuit | Driving support ECU (Pre-Crash 2) | |
| C1A9F | Front Headrest Control ECU LH Writing Error | Driving support ECU (Pre-Crash 2) | |
| U0122 | Lost Communication with Vehicle Dynamics Control Module | Driving support ECU (Pre-Crash 2) | |
| U0123 | Lost Communication with Yaw Rate Sensor Module | Driving support ECU (Pre-Crash 2) | |
| U0126 | Lost Communication with Steering Angle Sensor Module | Driving support ECU (Pre-Crash 2) | |
| U0140 | Lost Communication with Main Body ECU | Driving support ECU (Pre-Crash 2) | |
| U0151 | Lost Communication with Airbag ECU | Driving support ECU (Pre-Crash 2) | |
| U0235 | Lost Communication with Cruise Control Front Distance Range Sensor | Driving support ECU (Pre-Crash 2) | |
| U0293 | Lost Communication with HV ECU | Driving support ECU (Pre-Crash 2) | |
| U1104 | Lost Communication with Driving Support ECU | Driving support ECU (Pre-Crash 2) | |
| U1118 | Lost Communication with Rear Radar Sensor | Driving support ECU (Pre-Crash 2) | |
| U1119 | Lost Communication with Object Recognition ECU (Serial) | Driving support ECU (Pre-Crash 2) | |
| U1119 | Lost Communication with Object Recognition ECU (CAN) | Driving support ECU (Pre-Crash 2) | |
| U1120 | Lost Communication with Object Recognition Camera | Driving support ECU (Pre-Crash 2) | |
| U1121 | Lost Communication with Driver Monitor ECU | Driving support ECU (Pre-Crash 2) | |
| U1124 | Lost Communication with Right Headrest Control ECU | Driving support ECU (Pre-Crash 2) | |
| U1125 | Lost Communication with Left Headrest Control ECU | Driving support ECU (Pre-Crash 2) | |
| B2000 | Short to B+ in Seat Belt Motor RH Circuit | Driving support ECU (Pre-Crash 2) | |
| B2001 | Short to GND in Seat Belt Motor RH Circuit | Driving support ECU (Pre-Crash 2) | |
| B2002 | Open in Seat Belt Motor RH Circuit | Driving support ECU (Pre-Crash 2) | |
| B2005 | Short to B+ in Seat Belt Motor LH Circuit | Driving support ECU (Pre-Crash 2) | |
| B2006 | Short to GND in Seat Belt Motor LH Circuit | Driving support ECU (Pre-Crash 2) | |
| B2007 | Open in Seat Belt Motor LH Circuit | Driving support ECU (Pre-Crash 2) | |
| B2015 | Open in Right Side Upper MOS | Active headrest control ECU (Active Headrest RH) | |
| B2016 | Open in Right Side Lower MOS | Active headrest control ECU (Active Headrest RH) | |
| B2020 | Open in Left Side Upper MOS | Active headrest control ECU (Active Headrest RH) | |
| B2021 | Open in Left Side Lower MOS | Driving support ECU (Pre-Crash 2) | |
| B2025 | Right Side Current Detection Circuit Malfunction Hi | Active headrest control ECU (Active Headrest LH) | |
| B2026 | Right Side Current Detection Circuit Malfunction Lo | Active headrest control ECU (Active Headrest LH) | |
| B2027 | Right Side Over-Current Malfunction | Active headrest control ECU (Active Headrest LH) | |
| B2030 | Left Side Current Detection Circuit Malfunction Hi | - Seat belt control ECU (Pre-Crash 1) - Driving support ECU (Pre-Crash 2) |
|
| B2031 | Left Side Current Detection Circuit Malfunction Lo | Driving support ECU (Pre-Crash 2) | |
| B2032 | Left Side Over-Current Malfunction | Driving support ECU (Pre-Crash 2) | |
| B2035 | Power Supply Relay Adherence Malfunction | Seat belt control ECU (Pre-Crash 1) | |
| B2036 | Power Supply Relay Malfunction Open | Driving support ECU (Pre-Crash 2) | |
| B2040 | EEPROM Malfunction | Driving support ECU (Pre-Crash 2) | |
| B2041 | Fall of Raised Voltage | Driving support ECU (Pre-Crash 2) | |
| B2043 | Fall of B+ Voltage | - Seat belt control ECU (Pre-Crash 1) - Driving support ECU (Pre-Crash 2) |
|
| B2047 | Seat Belt Control ECU Inner Circuit Malfunction | - Rear millimeter wave radar sensor - CAN communication system - Driving support ECU |
|
| B2060 | ABS Malfunction | Driving support ECU (Pre-Crash 2) | |
| B2064 | Vehicle Type Signal Malfunction | Driving support ECU (Pre-Crash 2) | |
| B2074 | Driver Side Seat Belt Buckle Switch Circuit Malfunction | Driving support ECU (Pre-Crash 2) | |
| B2075 | Passenger Side Seat Belt Buckle Switch Circuit Malfunction | Driving support ECU (Pre-Crash 2) | |
| B2090 | Driving Support System Malfunction | Driving support ECU (Pre-Crash 2) | |
| C1A40 | ENG / EHV Device | Driving support ECU (Pre-Crash 2) |