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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HOMESERVICE MANUALSLEXUS2004IS 300 BASE, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESANTI-LOCK/VEHICLE SKID CONTROL
2004 Lexus IS 300 Base, Automatic
Anti-Lock/Vehicle Skid Control
2004 Lexus IS 300 Base, AutomaticSECTION Anti-Lock/Vehicle Skid Control
- Description & Operation
- Bleeding Brake System
- Programming
- Diagnosis & Testing
- Self-Diagnostic System
- Diagnostic Tests
- DTCS C0200, C0205, C0210, C0215, C1235, C1236, C1238 & C1239: Speed Sensor Circuit
- DTCS C0226, C0236, C0246 & C0256: Abs-Related Solenoid Circuits
- DTCS C0273 & C0274: Abs Motor Relay Circuit
- DTCS C0278 & C0279: Abs Solenoid Relay Circuit
- DTC C1201: Engine Control System Malfunction
- DTC C1202: Brake Fluid Warning Switch Circuit
- DTC C1203: ECM Communication Circuit Malfunction
- DTC C1223: Abs Control System Malfunction
- DTC C1224: Ne Signal Circuit
- DTCS C1225, C1226, & C1227: TRAC & VSC Related Solenoid Circuits
- DTCS C1231 & C1335: Steering Angle Sensor Circuit
- DTCS C1233 & C1234: Yaw Rate Sensor Circuit
- DTC C1241: IG Power Source Circuit
- DCTS C1243, C1244 & C1245: Malfunction In Deceleration Sensor
- DTC C1246, C1360:
- DTC C1249: Open Circuit In Stop Light Switch Circuit
- DTC C1251: Abs Pump Motor Lock
- DTC 1267: Brake Pedal Load Sensing Switch
- System Testing
- Notes
- Test A: Abs Sensor Signal Check
- Test B: DTC Always On, Malfunction In Ecu Abs Warning Light Circuit
- Test C: DTC Always On, Malfunction In Ecu VSC Warning Light Circuit
- Test D: Abs Warning Light Circuit
- Test E: Brake Actuator Assembly
- Test F: Brake Warning Light Circuit
- Test G: Slip Indicator Light Circuit
- Test H: Speed Sensor Signal Check
- Test I: TS Terminal Circuit
- Test J: TRAC Off Indicator, TRAC Cut Switch Circuit
- Test K: VSC Sensor Check
- Test L: VSC Warning Buzzer Circuit
- Test M: VSC Warning Light Circuit
- Removal & Installation
- Torque Specifications
- Pin Voltage Test
- Wiring Diagrams
- Special Tools
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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.