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 MANUALSTOYOTA201886 GT, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXBRAKE CONTROL / DYNAMIC CONTROL SYSTEMS DTCSVEHICLE STABILITY CONTROL SYSTEM
2018 Toyota 86 GT, Standard Trans
Vehicle Stability Control System
2018 Toyota 86 GT, Standard TransSECTION Vehicle Stability Control System
VEHICLE STABILITY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (VSC SYSTEM)
| DTC Code | Description |
|---|---|
| C1201 | Engine Control System Malfunction |
| C1225 | SA1 Solenoid Circuit |
| C1226 | SA2 Solenoid Circuit |
| C1227 | SA3 Solenoid Circuit |
| C1228 | STR Solenoid Circuit |
| C1231 | Steering Angle Sensor |
| C1234 | Yaw Rate Sensor |
| C1237 | Speed Sensor Rotor Faulty |
| C1241 | Low or High Power Supply Voltage |
| C1246*2 | Master Cylinder Pressure Sensor Malfunction |
| C1249 | Open in Stop Light Switch Circuit |
| C1288 | Error in Matching of ECUs |
| C1294 | ECT System Malfunction |
| C1300 | Skid Control ECU Malfunction |
| C1330 | Open in Front Speed Sensor RH |
| C1331 | Open in Front Speed Sensor LH |
| C1332 | Open in Rear Speed Sensor RH |
| C1333 | Open in Rear Speed Sensor LH |
| C1419 | Acceleration Sensor Internal Circuit |
| C1464*1 | Front Speed Sensor RH |
| C1465*1 | Front Speed Sensor LH |
| C1466*1 | Rear Speed Sensor RH |
| C1467*1 | Rear Speed Sensor LH |
| C1468 | SFR Solenoid Circuit |
| C1469 | SFL Solenoid Circuit |
| C146A | SRR Solenoid Circuit |
| C146B | SRL Solenoid Circuit |
| C146C*1 | Open in ABS Motor Relay Circuit |
| C146E | Open in ABS Solenoid Relay Circuit |
| C1472 | Acceleration Sensor |
| C1474 | Forward and Rearward G Sensor |
| C1492 | Clutch Switch OFF Stuck |
| C1493 | Clutch Switch ON Stuck |
| C1494 | Reverse Switch OFF Stuck |
| C1495 | Reverse Switch ON Stuck |
| U0073 | Control Module Communication Bus "A" Off |
| U0100 | Lost Communication with ECM / PCM "A" |
| U0101 | Lost Communication with TCM |
| U0126 | Lost Communication with Steering Angle Sensor Module |
| U0140 | Lost Communication with Main Body ECU |
VEHICLE STABILITY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (ABS TEST MODE DTC)
| DTC Code | Description |
|---|---|
| C1271 | Low Output Signal of Front Speed Sensor RH (Test Mode DTC) |
| C1272 | Low Output Signal of Front Speed Sensor LH (Test Mode DTC) |
| C1273 | Low Output Signal of Rear Speed Sensor RH (Test Mode DTC) |
| C1274 | Low Output Signal of Rear Speed Sensor LH (Test Mode DTC) |
| C1275 | Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC) |
| C1276 | Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC) |
| C1277 | Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC) |
| C1278 | Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC) |
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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.