Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2010RX 450H 3.5 BREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXPRE-COLLISION DTCSPRE-COLLISION SYSTEM (FROM 08/2009)
2010 Lexus RX 450h 3.5 B
Pre-Collision System (From 08/2009)
2010 Lexus RX 450h 3.5 BSECTION Pre-Collision System (From 08/2009)
PRE-COLLISION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| B2000 | Short to B+ in Seat Belt Motor RH Circuit |
| B2001 | Short to GND in Seat Belt Motor RH Circuit |
| B2002 | Open in Seat Belt Motor RH Circuit |
| B2005 | Short to B+ in Seat Belt Motor LH Circuit |
| B2006 | Short to GND in Seat Belt Motor LH Circuit |
| B2007 | Open in Seat Belt Motor LH Circuit |
| B2015 | Open in Right Side Upper MOS |
| B2016 | Open in Right Side Lower MOS |
| B2020 | Open in Left Side Upper MOS |
| B2021 | Open in Left Side Lower MOS |
| B2025 | Right Side Current Detection Circuit Malfunction Hi |
| B2026 | Right Side Current Detection Circuit Malfunction Lo |
| B2027 | Right Side Over-Current Malfunction |
| B2030 | Left Side Current Detection Circuit Malfunction Hi |
| B2031 | Left Side Current Detection Circuit Malfunction Lo |
| B2032 | Left Side Over-Current Malfunction |
| B2035 | Power Supply Relay Adherence Malfunction |
| B2036 | Power Supply Relay Malfunction Open |
| B2040 | EEPROM Malfunction |
| B2041 | Fall of Raised Voltage |
| B2043 | Fall of B+ Voltage |
| B2047 | Seat Belt Control ECU Inner Circuit Malfunction |
| B2060 | ABS Malfunction |
| B2064 | Vehicle Type Signal Malfunction |
| B2074 | Driver Side Seat Belt Buckle Switch Circuit Malfunction |
| B2075 | Passenger Side Seat Belt Buckle Switch Circuit Malfunction |
| B2085 | Communication Error from Driving Support ECU to VSC ECU |
| B2090 | Driving Support System Malfunction |
| C1A01 | Driving Support ECU |
| C1A02 | Vehicle Information Not Obtained |
| C1A0A | Front Radar Sensor Region Code Mismatch |
| C1A10 | Front Radar Sensor |
| C1A11 | Front Radar Sensor Incorrect Axial Gap |
| C1A14 | Front Radar Sensor Beam Axis Not Adjusted |
| C1A40 | ENG / EHV Device |
| C1A41 | Brake Request Value Mismatch between ENG / EHV and Driving Support ECU |
| C1A46 | Yaw Rate Sensor |
| C1A47 | Steering Angle Sensor |
| U0122 | Lost Communication with Vehicle Dynamics Control Module |
| U0123 | Lost Communication with Yaw Rate Sensor Module |
| U0126 | Lost Communication with Steering Angle Sensor Module |
| U0140 | Lost Communication with Main Body ECU |
| U0151 | Lost Communication with Airbag ECU |
| U0235 | Lost Communication with Cruise Control Front Distance Range Sensor |
| U0293 | Lost Communication with HV ECU |
| U1100 | Lost Communication with Seat Belt Control ECU |
| U1104 | Lost Communication with Driving Support ECU |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.