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.
Traction Control System
1996 Lexus SC 400SECTION Traction Control System
- Ensure master cylinder reservoir is full of brake fluid. Turn ignition off. Bleed TRAC control system by connecting a vinyl tube to accumulator bleeder screw. See Fig 1. Loosen bleeder screw. Start engine and allow TRAC pump motor to operate until all air has been bled from accumulator side. Tighten bleeder screw to 74 INCH lbs. (8.4 N.m) and turn engine off.
- Connect a vinyl tube to bleeder screw of TRAC actuator. See Fig 2. Loosen bleeder screw. Start engine and allow TRAC pump to operate until all air has been bled from actuator side. Tighten bleeder screw to 74 INCH lbs. (8.4 N.m) and turn engine off.
- Ensure there are no Diagnostic Trouble Codes (DTC) stored. Clear codes if necessary. See CLEARING CODES under DIAGNOSIS & TESTING. Fill brake fluid reservoir with engine at idle.
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.