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.
2005 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
Pre-Collision Safety System - Diagnostics
- Precaution
- Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Customer Problem Analysis Check
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- DTC Check/Clear
- Fail-Safe Chart
- Data List/Active Test
- Diagnostic Trouble Code Chart
- DTC B2000: Right Side Motor Line Malfunction Hi
- DTC B2001: Right Side Motor Line Malfunction Lo
- DTC B2002: Right Side Motor Line Malfunction Open
- DTC B2005: Left Side Motor Line Malfunction Hi
- DTC B2006: Left Side Motor Line Malfunction Lo
- DTC B2007: Left Side Motor Line Malfunction Open
- DTC B2015, B2016, B2020, B2021, B2025, B2026, B2027, B2030, B2031, B2032, B2035, B2036, B2040, B2041, B2047: Right/Left Side Upper/Lower Mos Malfunction Open, Right Side Current Detection Circuit Malfunction Hi/Lo, Right/Left Side Over-Current Malfunction, Left Side Current Detection Circuit Malfunction Hi/Lo, Power Supply Relay Adherence Malfunction, Power Supply Relay Malfunction Open, EEPROM Malfunction, Fall Of The Raised Voltage, Pre-Collision Safety Ecu Inner Circuit Malfunction
- DTC B2043: Fall Of The +B Voltage
- DTC B2059: Vehicle Speed Malfunction Of Distance Control Ecu
- DTC B2064: Vehicle Type Signal Malfunction
- Power Source Circuit
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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