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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1998 Lexus SC 300
Traction Control System
1998 Lexus SC 300SECTION Traction Control System
- Description
- Operation
- Component Locations
- Bleeding Brake System
- Trouble Shooting
- Self-Diagnostic System
- Connector Identification
- Circuit Tests
- Slip Indicator Light Circuit
- Tc TERMINAL CIRCUIT
- TRAC Indicator Light Circuit (GS300)
- TRAC Off Indicator, TRAC Cut Switch Circuit
- DTC 24: TRAC Sub-Throttle Actuator Circuit (1997)
- DTC 25 Or 26: TRAC Sub-Throttle Valve
- DTC 28 Or 29: Throttle Valve Motor Driver (1997, Except GS300)
- DTC 31, 32, 33 Or 34: Speed Sensor Circuit (GS300)
- DTC 41: IG Power Supply Circuit
- DTC 43: Abs Control System Malfunction (Except GS300)
- DTC 43: Abs/TRAC Control System Malfunction (GS300)
- DTC 44: Ne Signal Circuit Malfunction
- DTC 45 Or 46: Main Throttle Position Sensor Circuit (GS300)
- DTC 47 Or 48: Sub-Throttle Position Sensor Circuit (LS400, 1997 SC300 & SC400)
- DTC 47 Or 48: Sub-Throttle Position Sensor Circuit (GS300)
- DTC 49: Engine Communication Circuit (GS300)
- DTC 51: Engine Malfunction Detection Circuit
- DTC 52: Brake Fluid Level Warning Switch Circuit (Except GS300)
- DTC 53: ECM Communication Circuit Malfunction (Except GS300)
- DTC 61: Abs/TRAC Ecu & TRAC Ecu Communication Circuit Malfunction (GS300)
- Removal & Installation
- Overhaul
- Adjustments
- Torque Specifications
- Wiring Diagrams
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.