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.
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1996 Lexus SC 400
Traction Control System
1996 Lexus SC 400SECTION Traction Control System
- Description
- Operation
- Component Locations
- Bleeding Brake System
- Trouble Shooting
- Self-Diagnostic System
- Circuit Tests
- Tc TERMINAL CIRCUIT
- TRAC Off Indicator, TRAC Cut Switch Circuit (LS400)
- TRAC Off Indicator, TRAC Cut Switch Circuit
- DTC 24 - TRAC Sub-Throttle Actuator Circuit
- DTC 25 - TRAC Sub-Throttle Valve
- DTC 26 - TRAC Sub-Throttle Valve
- DTC 27 - TRAC Sub-Throttle Valve
- DTC 28 - Throttle Valve Motor Driver
- DTC 29 - Throttle Valve Motor Driver
- DTC 31, 32, 33 Or 34 - Speed Sensor Circuit
- DTC 41 - IG Power Supply Circuit
- DTC 43 - Abs & TRAC Ecu Malfunction
- DTC 44 - Ne Signal Circuit Malfunction
- DTC 45 Or 46 - Main Throttle Position Sensor Circuit
- DTC 47 - Sub-Throttle Position Sensor Circuit
- DTC 48 - Sub-Throttle Position Sensor Circuit
- DTC 49 - Engine Communication Circuit
- DTC 51 - Engine Malfunction Detection Circuit
- DTC 52 - Brake Fluid Level Warning Switch Circuit
- DTC 53 - ECM Communication Circuit Malfunction
- DTC 54 - TRAC Motor Relay Circuit
- DTC 55 - TRAC Motor Relay Circuit
- DTC 56 - TRAC Pump Motor Malfunction
- DTC 61 - Abs Ecu & TRAC Ecu Communication Circuit Malfunction
- Removal & Installation
- Overhaul
- Adjustments
- Torque Specifications
- Wiring Diagrams
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
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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.