2007 Lexus LS 460FACTORY OEM SERVICE PROCEDURE

Brake Control Power Supply: Inspection

  1. CHECK BRAKE CONTROL POWER SUPPLY ASSEMBLY 
    CAUTION: Immediately after removing the brake control power supply from the vehicle, there may be an electrical charge left in the internal capacitor. If planning to inspect the inside of the brake control power supply, leave it as is for more than 24 hours (to discharge it) after removing it from the vehicle. Then perform the inspection.
    1. Check the brake control power supply. If any of the following occurs, replace the brake control power supply assembly with a new one:
      • The surface of the brake control power supply is cracked, dented, or chipped.
      • The connector is scratched, cracked, or damaged.
      • The brake control power supply has been dropped.
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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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