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.
2021 Toyota C-HR LEFACTORY OEM SERVICE PROCEDURE
Vehicle Stability Control System
VEHICLE STABILITY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (02/2017 - 10/2017)
| DTC Code | Description |
|---|---|
| C1201 | Engine Control System Malfunction |
| C1224 | NE Signal |
| C1225 | SM Solenoid Circuit |
| C1226 | SA2 Solenoid Circuit |
| C1227 | SA3 Solenoid Circuit |
| C1228 | STR Solenoid Circuit |
| C1234 | Yaw Rate Sensor |
| C1237 | Speed Sensor Rotor Faulty |
| C1241 | Low Power Supply Voltage Malfunction |
| C1243 | Acceleration Sensor Stuck Malfunction |
| C1245 | Acceleration Sensor Output Malfunction |
| C1246 | Master Cylinder Pressure Sensor Malfunction |
| C1249 | Open in Stop Light Switch Circuit |
| C1288 | Error in Matching of ECUs |
| 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 |
| C1336 | Zero Point Calibration of Acceleration Sensor Undone |
| C1380 | Stop Light Control Relay Malfunction |
| C1381 | Acceleration Sensor Power Supply Voltage Malfunction |
| C1417 | High Power Supply Voltage Malfunction |
| C1419 | Acceleration Sensor Internal Circuit |
| C1420 | Acceleration Sensor Malfunction |
| C1425 | Open in Stop Light Switch Circuit |
| C1426 | Stop Light Switch OFF Stuck Malfunction |
| C1428 | Motor Circuit Malfunction |
| C1429 | Open or Short in Brake Pedal Load Sensing Switch |
| C1430 | Brake Pedal Load Sensing Switch OFF Stuck Malfunction |
| C1431 | Brake Pedal Load Sensing Switch ON Stuck Malfunction |
| C1432 | Steering Angle Sensor Power Source Voltage Malfunction |
| C1433 | Steering Angle Sensor Internal Circuit |
| C1434 | Steering Angle Sensor Output Malfunction |
| C1435 | Yaw Rate Sensor Internal Circuit |
| C1436 | Yaw Rate Sensor Malfunction |
| C1439 | Steering Angle Sensor Initialization Incomplete |
| C1441 | Performance Decline of Brake Function |
| C1445 | Vehicle Driven with Steering Angle Sensor not Initialized |
| C1448 | Yaw Rate Sensor Output Value |
| C1464 | Front Speed Sensor RH |
| C1465 | Front Speed Sensor LH |
| C1466 | Rear Speed Sensor RH |
| C1467 | Rear Speed Sensor LH |
| C1468 | SFR Solenoid Circuit |
| C1469 | SFL Solenoid Circuit |
| C146A | SRR Solenoid Circuit |
| C146B | SRL Solenoid Circuit |
| C146C | Open in ABS Motor Relay Circuit |
| C146E | Open in ABS Solenoid Relay Circuit |
| C1472 | Acceleration Sensor |
| C1474 | Forward and Rearward G Sensor |
| U0073 | Control Module Communication Bus OFF |
| U0100 | Lost Communication with ECM / PCM |
| U0123 | Lost Communication with Yaw Rate Sensor Module |
| U0126 | Lost Communication with Steering Angle Sensor Module |
| U0142 | Lost Communication with Body Control Module "B" |
VEHICLE STABILITY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (10/2017 - 09/2019)
| DTC Code | Description |
|---|---|
| C1201 | Engine Control System Malfunction |
| C1224 | NE Signal |
| C1225 | SM Solenoid Circuit |
| C1226 | SA2 Solenoid Circuit |
| C1227 | SA3 Solenoid Circuit |
| C1228 | STR Solenoid Circuit |
| C1234 | Yaw Rate Sensor |
| C1237 | Speed Sensor Rotor Faulty |
| C1241 | Low Power Supply Voltage Malfunction |
| C1243 | Acceleration Sensor Stuck Malfunction |
| C1245 | Acceleration Sensor Output Malfunction |
| C1246 | Master Cylinder Pressure Sensor Malfunction |
| C1249 | Open in Stop Light Switch Circuit |
| C1288 | Error in Matching of ECUs |
| 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 |
| C1336 | Zero Point Calibration of Acceleration Sensor Undone |
| C1380 | Stop Light Control Relay Malfunction |
| C1381 | Acceleration Sensor Power Supply Voltage Malfunction |
| C1417 | High Power Supply Voltage Malfunction |
| C1419 | Acceleration Sensor Internal Circuit |
| C1420 | Acceleration Sensor Malfunction |
| C1425 | Open in Stop Light Switch Circuit |
| C1426 | Stop Light Switch OFF Stuck Malfunction |
| C1428 | Motor Circuit Malfunction |
| C1429 | Open or Short in Brake Pedal Load Sensing Switch |
| C1430 | Brake Pedal Load Sensing Switch OFF Stuck Malfunction |
| C1431 | Brake Pedal Load Sensing Switch ON Stuck Malfunction |
| C1432 | Steering Angle Sensor Power Source Voltage Malfunction |
| C1433 | Steering Angle Sensor Internal Circuit |
| C1434 | Steering Angle Sensor Output Malfunction |
| C1435 | Yaw Rate Sensor Internal Circuit |
| C1436 | Yaw Rate Sensor Malfunction |
| C1439 | Steering Angle Sensor Initialization Incomplete |
| C1441 | Performance Decline of Brake Function |
| C1445 | Vehicle Driven with Steering Angle Sensor not Initialized |
| C1448 | Yaw Rate Sensor Output Value |
| C1464 | Front Speed Sensor RH |
| C1465 | Front Speed Sensor LH |
| C1466 | Rear Speed Sensor RH |
| C1467 | Rear Speed Sensor LH |
| C1468 | SFR Solenoid Circuit |
| C1469 | SFL Solenoid Circuit |
| C146A | SRR Solenoid Circuit |
| C146B | SRL Solenoid Circuit |
| C146C | Open in ABS Motor Relay Circuit |
| C146E | Open in ABS Solenoid Relay Circuit |
| C1472 | Acceleration Sensor |
| C1474 | Forward and Rearward G Sensor |
| U0073 | Control Module Communication Bus OFF |
| U0100 | Lost Communication with ECM / PCM |
| U0123 | Lost Communication with Yaw Rate Sensor Module |
| U0126 | Lost Communication with Steering Angle Sensor Module |
| U0142 | Lost Communication with Body Control Module "B" |
VEHICLE STABILITY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (09/2019 - 12/2021)
| DTC Code | Description |
|---|---|
| C1201 | Engine Control System Malfunction |
| C1224 | NE Signal |
| C1225 | SM Solenoid Circuit |
| C1226 | SA2 Solenoid Circuit |
| C1227 | SA3 Solenoid Circuit |
| C1228 | STR Solenoid Circuit |
| C1234 | Yaw Rate Sensor |
| C1237 | Speed Sensor Rotor Faulty |
| C1241 | Low Power Supply Voltage Malfunction |
| C1243 | Acceleration Sensor Stuck Malfunction |
| C1245 | Acceleration Sensor Output Malfunction |
| C1246 | Master Cylinder Pressure Sensor Malfunction |
| C1249 | Open in Stop Light Switch Circuit |
| C1288 | Error in Matching of ECUs |
| 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 |
| C1336 | Zero Point Calibration of Acceleration Sensor Undone |
| C1380 | Stop Light Control Relay Malfunction |
| C1381 | Acceleration Sensor Power Supply Voltage Malfunction |
| C1417 | High Power Supply Voltage Malfunction |
| C1419 | Acceleration Sensor Internal Circuit |
| C1420 | Acceleration Sensor Malfunction |
| C1425 | Open in Stop Light Switch Circuit |
| C1426 | Stop Light Switch OFF Stuck Malfunction |
| C1428 | Motor Circuit Malfunction |
| C1429 | Open or Short in Brake Pedal Load Sensing Switch |
| C1430 | Brake Pedal Load Sensing Switch OFF Stuck Malfunction |
| C1431 | Brake Pedal Load Sensing Switch ON Stuck Malfunction |
| C1432 | Steering Angle Sensor Power Source Voltage Malfunction |
| C1433 | Steering Angle Sensor Internal Circuit |
| C1434 | Steering Angle Sensor Output Malfunction |
| C1435 | Yaw Rate Sensor Internal Circuit |
| C1436 | Yaw Rate Sensor Malfunction |
| C1439 | Steering Angle Sensor Initialization Incomplete |
| C1441 | Performance Decline of Brake Function |
| C1445 | Vehicle Driven with Steering Angle Sensor not Initialized |
| C1448 | Yaw Rate Sensor Output Value |
| C1464 | Front Speed Sensor RH |
| C1465 | Front Speed Sensor LH |
| C1466 | Rear Speed Sensor RH |
| C1467 | Rear Speed Sensor LH |
| C1468 | SFR Solenoid Circuit |
| C1469 | SFL Solenoid Circuit |
| C146A | SRR Solenoid Circuit |
| C146B | SRL Solenoid Circuit |
| C146C | Open in ABS Motor Relay Circuit |
| C146E | Open in ABS Solenoid Relay Circuit |
| C1472 | Acceleration Sensor |
| C1474 | Forward and Rearward G Sensor |
| U0073 | Control Module Communication Bus OFF |
| U0100 | Lost Communication with ECM / PCM |
| U0123 | Lost Communication with Yaw Rate Sensor Module |
| U0126 | Lost Communication with Steering Angle Sensor Module |
| U0142 | Lost Communication with Body Control Module "B" |
VEHICLE STABILITY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (12/2021 -)
| DTC Code | Description |
|---|---|
| C1201 | Engine Control System Malfunction |
| C1224 | NE Signal |
| C1225 | SM Solenoid Circuit |
| C1226 | SA2 Solenoid Circuit |
| C1227 | SA3 Solenoid Circuit |
| C1228 | STR Solenoid Circuit |
| C1234 | Yaw Rate Sensor |
| C1237 | Speed Sensor Rotor Faulty |
| C1241 | Low Power Supply Voltage Malfunction |
| C1243 | Acceleration Sensor Stuck Malfunction |
| C1245 | Acceleration Sensor Output Malfunction |
| C1246 | Master Cylinder Pressure Sensor Malfunction |
| C1249 | Open in Stop Light Switch Circuit |
| C1288 | Error in Matching of ECUs |
| 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 |
| C1336 | Zero Point Calibration of Acceleration Sensor Undone |
| C1380 | Stop Light Control Relay Malfunction |
| C1381 | Acceleration Sensor Power Supply Voltage Malfunction |
| C1417 | High Power Supply Voltage Malfunction |
| C1419 | Acceleration Sensor Internal Circuit |
| C1420 | Acceleration Sensor Malfunction |
| C1425 | Open in Stop Light Switch Circuit |
| C1426 | Stop Light Switch OFF Stuck Malfunction |
| C1428 | Motor Circuit Malfunction |
| C1429 | Open or Short in Brake Pedal Load Sensing Switch |
| C1430 | Brake Pedal Load Sensing Switch OFF Stuck Malfunction |
| C1431 | Brake Pedal Load Sensing Switch ON Stuck Malfunction |
| C1432 | Steering Angle Sensor Power Source Voltage Malfunction |
| C1433 | Steering Angle Sensor Internal Circuit |
| C1434 | Steering Angle Sensor Output Malfunction |
| C1435 | Yaw Rate Sensor Internal Circuit |
| C1436 | Yaw Rate Sensor Malfunction |
| C1439 | Steering Angle Sensor Initialization Incomplete |
| C1441 | Performance Decline of Brake Function |
| C1445 | Vehicle Driven with Steering Angle Sensor not Initialized |
| C1448 | Yaw Rate Sensor Output Value |
| C1464 | Front Speed Sensor RH |
| C1465 | Front Speed Sensor LH |
| C1466 | Rear Speed Sensor RH |
| C1467 | Rear Speed Sensor LH |
| C1468 | SFR Solenoid Circuit |
| C1469 | SFL Solenoid Circuit |
| C146A | SRR Solenoid Circuit |
| C146B | SRL Solenoid Circuit |
| C146C | Open in ABS Motor Relay Circuit |
| C146E | Open in ABS Solenoid Relay Circuit |
| C1472 | Acceleration Sensor |
| C1474 | Forward and Rearward G Sensor |
| U0073 | Control Module Communication Bus OFF |
| U0100 | Lost Communication with ECM / PCM |
| U0123 | Lost Communication with Yaw Rate Sensor Module |
| U0126 | Lost Communication with Steering Angle Sensor Module |
| U0142 | Lost Communication with Body Control Module "B" |
Factory Service 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.