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.
2003 Lexus SC 430FACTORY OEM SERVICE PROCEDURE
Anti-Lock Brake System
- Description & Operation
- Bleeding Brake System
- Programming
- Diagnosis & Testing
- Self-Diagnostic System
- Diagnostic Tests
- Notes
- DTC C0200/31, DTC C0205/32, DTC C1235/35 Or DTC C1236/36
- DTC C0210/33, DTC C0215/34, DTC C1238/38 Or DTC C1239/39
- DTC C0226/21, DTC C0236/22, DTC C0246/23, DTC C0256/24, DTC C1225/25, DTC C1226/26, DTC C1227/27 Or DTC C1228/28
- DTC C0278/11: Open Circuit In Abs Solenoid Relay Circuit & DTC C0279/12: Short Circuit In Abs Solenoid Relay Circuit
- DTC C1201/51: Engine Control System Malfunction
- DTC C1203/53: ECM Communication Circuit Malfunction
- DTC C1210/36: Zero Point Calibration Of Yaw Rate Sensor Undone
- DTC C1223/43: Abs Control System Malfunction
- DTC C1224/44: Ne Signal Circuit
- DTC C1231/31 & DTC C1335/35: Steering Angle Sensor Circuit
- DTC C1232/32, DTC C1243/43, DTC C1244/44 Or DTC C1245/45
- DTC C1233/33: Yaw Rate Sensor Circuit Or DTC C1234/34: Malfunction In Yaw Rate Sensor
- DTC C1241/41: IG Power Source Circuit & DTC C1257/57: IG Power Source
- DTC C1242/42: IG2 Power Source Circuit
- DTC C1246/46: Master Cylinder Pressure Sensor Circuit
- DTC C1249/49: Stop Light Switch Circuit
- DTC C1251/51, DTC C1252/52 Or DTC C1253/53
- DTC C1254/54: Pressure Switch Circuit
- DTC C1256/56: Accumulator Low Pressure
- DTC C1336/39: Zero Point Calibration Of Deceleration Sensor Undone
- System Testing
- Notes
- Test A: Abs Sensor Signal Check
- Test B: DTC Always On, Malfunction In Abs Ecu
- Test C: DTC Always On, Malfunction In Ecu (VSC Warning Light)
- Test D: Abs Warning Light Circuit (Does Not Light Up)
- Test E: Brake Warning Light Circuit
- Test F: Slip Indicator Light Circuit
- Test G: Skid Control Buzzer Circuit
- Test H: TC Terminal Circuit
- Test I: TS Terminal Circuit
- Test J: VSC Off Indicator Light, VSC Off Switch Circuit
- Test K: VSC Sensor Signal Check
- Test L: VSC Warning Light Circuit (Does Not Light Up)
- Removal & Installation
- Torque Specifications
- Pin Voltage Test
- Wiring Diagrams
- Special Tools
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.