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 DTCS
PRE-COLLISION SAFETY SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| 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 |
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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