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 LS 430FACTORY OEM SERVICE PROCEDURE
Anti-Lock Brake DTCS
ANTI-LOCK BRAKE DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| C0200/31, C0205/32, C0210/33, C0215/34, C1235/35, C1236/36, C1238/38 & C1239/39 | RIGHT FRONT SPEED SENSOR; LEFT FRONT SPEED SENSOR; RIGHT REAR SPEED SENSOR; RIGHT REAR SPEED SENSOR |
| C0226/21, C0236/22, C0246/23 & C0256/24 | ABS-RELATED SOLENOID CIRCUITS |
| C0273/13 & C0274/14 | ABS MTR RELAY CIRCUIT |
| C0278/11 & C0279/12 | ABS SOL RELAY CIRCUIT |
| C1201/51 | ENGINE CONTROL SYSTEM MALFUNCTION |
| C1202/52 | BRAKE FLUID LEVEL WARNING SWITCH CIRCUIT |
| C1203/53 | MALFUNCTION IN ENGINE & ECT ECU COMMUNICATION CIRCUIT |
| C1210/36 | ZERO POINT CALIBRATION OF YAW RATE SENSOR UNDONE |
| C1224/44 | NEO SIGNAL CIRCUIT |
| C1225/25, C1226/26 & C1227/27 | TRAC & VSC - RELATED SOLENOID CIRCUITS |
| C1231/31 & C1335/35 | STEERING ANGLE SENSOR CIRCUIT |
| C1232/32 & C1244/44 | DECELERATION SENSOR DOES NOT FUNCTION; DECELERATION SENSOR CIRCUIT |
| C1233/33 & C1234/34 | YAW RATE SENSOR CIRCUIT |
| C1241/41 | IG POWER SOURCE CIRCUIT |
| C1243/43, C1245/45 & C1336/39 | MALFUNCTION IN DECELERATION SENSOR; ZERO POINT CALIBRATION OF DECELERATION SENSOR UNDONE |
| C1246/46 | MASTER CYLINDER PRESSURE SENSOR CIRCUIT |
| C1249/49 | STOP LIGHT SWITCH CIRCUIT |
| C1251/51 | ABS PUMP MOTOR LOCK |
| C1267/67 | BRAKE PEDAL LOAD SENSING SWITCH |
| C1303/57 | MULTIPLEX COMMUNICATION CIRCUIT MALFUNCTION |
| C1560 & C1561 | PPS SOLENOID CIRCUIT |
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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