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.
2002 Lexus IS 300 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Definitions: Notes
For diagnostic trouble code definitions, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .
DIAGNOSTIC TROUBLE CODE DEFINITIONS
| DTC | Perform Test |
|---|---|
| C0200 | Right Front Speed Sensor Circuit |
| C0205 | Left Front Speed Sensor Circuit |
| C0210 | Right Rear Speed Sensor Circuit |
| C0215 | Left Rear Speed Sensor Circuit |
| C0226 | Right Front ABS-Related Solenoid Circuits |
| C0236 | Left Front ABS-Related Solenoid Circuits |
| C0246 | Right Rear ABS-Related Solenoid Circuits |
| C0256 | Left Rear ABS-Related Solenoid Circuits |
| C0273 | ABS Motor Relay Circuit |
| C0274 | ABS Motor Relay Circuit |
| C0278 | ABS Solenoid Relay Circuit |
| C0279 | ABS Solenoid Relay Circuit |
| C1201 | Engine Control System Malfunction |
| C1202 | Brake Fluid Warning Switch Circuit |
| C1203 | ECM Communication Circuit Malfunction |
| C1223 | ABS Control System Malfunction |
| C1224 | Engine Revolution Speed Signals (NE signals) Circuit |
| C1225 | TRAC & VSC Related Solenoid Circuits |
| C1226 | TRAC & VSC Related Solenoid Circuits |
| C1227 | TRAC & VSC Related Solenoid Circuits |
| C1235 | Right Front Speed Sensor Circuit |
| C1236 | Left Front Speed Sensor Circuit |
| C1238 | Right Rear Speed Sensor Circuit |
| C1239 | Left Rear Speed Sensor Circuit |
| C1241 | Ignition (IG) Power Source Circuit |
| C1246 | Master Cylinder Pressure Sensor Circuit |
| C1249 | Stop Light Switch Circuit |
| C1251 | ABS Pump Motor Lock |
| C1267 | Brake Pedal Load Sensing Switch |
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.