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 MANUALSTOYOTA2009YARIS BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLBRAKE CONTROLANTI-LOCK BRAKE SYSTEM (FOR HATCHBACK)DIAGNOSTIC TROUBLE CODE CHART
2009 Toyota Yaris Base, 4D Sedan, Automatic
Diagnostic Trouble Code Chart
2009 Toyota Yaris Base, 4D Sedan, AutomaticSECTION Diagnostic Trouble Code Chart
NOTE:
Turn the ignition switch off before removing parts.
HINT:
- If no abnormality is found when inspecting parts, inspect the skid control ECU and ground points for poor contact.
- If a trouble code is displayed during the DTC check, check the circuit indicated by the DTC. For details of each code, refer to the page for the respective "DTC Code" in the DTC chart.
- When 2 or more DTCs are detected, perform circuit inspection one by one until the problem is identified.
- Inspect the fuse and relay before investigating the trouble areas as shown in the table below.
DTC Chart of ABS
ABS - DTC CHART
| DTC Code | Detection Item | Trouble Area |
|---|---|---|
| C0226 | SFR Solenoid Circuit |
|
| C0236 | SFL Solenoid Circuit |
|
| C0246 | SRR Solenoid Circuit |
|
| C0256 | SRL Solenoid Circuit |
|
| C0273 | Open in ABS Motor Relay Circuit |
|
| C0274 | Short in ABS Motor Relay Circuit |
|
| C0278 | Open in ABS Solenoid Relay Circuit |
|
| C0279 | Short in ABS Solenoid Relay Circuit |
|
| C1241 | Low Power Supply Voltage Malfunction |
|
| C1401 | Front Speed Sensor RH Malfunction |
|
| C1402 | Front Speed Sensor LH Malfunction |
|
| C1403 | Rear Speed Sensor RH Malfunction |
|
| C1404 | Rear Speed Sensor LH Malfunction |
|
| C1405 | Open or Short in Front Speed Sensor RH Circuit |
|
| C1406 | Open or Short in Front Speed Sensor LH Circuit |
|
| C1407 | Open or Short in Rear Speed Sensor RH Circuit |
|
| C1408 | Open or Short in Rear Speed Sensor LH Circuit |
|
| C1413 | Front Speed Sensor RH Output Malfunction |
|
| C1414 | Front Speed Sensor LH Output Malfunction |
|
| C1415 | Rear Speed Sensor RH Output Malfunction |
|
| C1416 | Rear Speed Sensor LH Output Malfunction |
|
| C1417 | High Power Supply Voltage Malfunction |
|
| C1425 | Open in Stop Light Switch Circuit |
|
| C1427 | Motor Malfunction |
|
| C1428 | Motor Circuit Malfunction | Brake actuator assembly (Short in motor circuit) |
| U0073 | Control Module Communication Bus OFF | CAN communication system |
*: Even after the trouble areas are repaired, the ABS warning light will not go off unless the following operations are performed:
- Drive the vehicle at 20 km/h (12 mph) for 30 seconds or more and check that the ABS warning light goes off.
- Clear the DTC.
HINT:
In some cases, the Techstream cannot be used when the ABS warning light remains on.
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.