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.
2008 Lexus LS 600hLFACTORY OEM SERVICE PROCEDURE
Diagnosis System
- DIAGNOSIS
- If the skid control ECU detects a malfunction, it will warn the driver by turning on the ABS warning light, brake warning light / red (malfunction) and brake warning light / yellow (minor malfunction) and slip and brake hold standby indicator light. It also warns the driver with the indication on the multi-information display
The table below indicates which lights will come on when there is a malfunction in a particular function
ABS AND EBD TROUBLE AREA REFERENCEItem / Trouble Area ABS EBD TR(A)C/VSC Brake Hold Standby ABS Warning Light ◦ ◦ - - Brake Warning Light / Red (Malfunction) - ◦ - - Brake Warning Light / Yellow (Minor Malfunction) - ◦ - - Slip Indicator Light ◦ ◦ ◦ ◦ Multi-information Display ◦ ◦ ◦ ◦ Brake Hold Standby Indicator Light ◦ ◦ ◦ ◦ HINT: - ◦ Light ON
- -. Light OFF
- The DTCs are simultaneously stored in the memory The DTCs can be read by connecting SST between terminals 13 (TC) and 4 (CG) of the DLC3 and observing the blinking pattern of the ABS warning light and brake warning light / yellow (minor malfunction), or indication on the multi-information display, or by connecting the intelligent tester or Techstream
- This system has a signal check function. The DTC can be read by connecting the intelligent tester or Techstream and observing the blinking pattern of the ABS warning light and brake warning light / yellow (minor malfunction) or by reading the multi-information display.
- If the skid control ECU detects a malfunction, it will warn the driver by turning on the ABS warning light, brake warning light / red (malfunction) and brake warning light / yellow (minor malfunction) and slip and brake hold standby indicator light. It also warns the driver with the indication on the multi-information display
- WARNING LIGHT AND INDICATOR LIGHT BULB CHECK
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Release the parking brake.CAUTION: When releasing the parking brake, set chocks to hold the vehicle for safety.
- When the power switch is ON (IG), check that the ABS warning light, brake warning light / red (malfunction), brake warning light / yellow (minor malfunction), slip, brake hold standby, and brake hold operated indicator lights illuminate until the power switch is turned ON (READY).
If a light remains on, proceed to troubleshooting for the light circuit below.
TROUBLE AREA REFERENCETrouble area See Procedure ABS warning light circuit (light remains on) ABS WARNING LIGHT REMAINS ON ABS warning light circuit (light does not come on) ABS WARNING LIGHT DOES NOT COME ON Brake warning light/ red (malfunction) circuit (light remains on) BRAKE WARNING LIGHT REMAINS ON Brake warning light / red (malfunction) circuit (light does not come on) BRAKE WARNING LIGHT DOES NOT COME ON Brake warning light / yellow (minor malfunction) circuit (light remains on) BRAKE CONTROL WARNING LIGHT REMAINS ON Brake warning light / yellow (minor malfunction) circuit (light does not come on) BRAKE CONTROL WARNING LIGHT DOES NOT COME ON Slip indicator light circuit SLIP INDICATOR LIGHT CIRCUIT Brake hold standby indicator light circuit BRAKE HOLD STANDBY INDICATOR LIGHT CIRCUIT Brake hold operated indicator light circuit BRAKE HOLD OPERATED INDICATOR LIGHT CIRCUIT
- Release the parking brake.
Factory Service Tools
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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.