VEHICLE STABILITY CONTROL SYSTEM > DIAGNOSTIC TROUBLE CODE CHART

for Preparation Click here


NOTICE:
Turn the ignition switch off before removing parts.

HINT:
  1. If no abnormality is found when inspecting parts, inspect the skid control ECU and ground points for poor contact.
  2. 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.
  3. When 2 or more DTCs are detected, perform circuit inspection one by one until the problem is identified.
  4. Inspect the fuse and relay before investigating the trouble areas as shown in the table below.


ABS System 
DTC Code
Detection Item
Trouble Area
See page
C0226
SFR Solenoid Circuit
- Solenoid circuit
- Brake actuator assembly
Click here
C0236
SFL Solenoid Circuit
- Solenoid circuit
- Brake actuator assembly
Click here
C0246
SRR Solenoid Circuit
- Solenoid circuit
- Brake actuator assembly
Click here
C0256
SRL Solenoid Circuit
- Solenoid circuit
- Brake actuator assembly
Click here
C0273*1
Open in ABS Motor Relay Circuit
- ABS No.1 fuse
- ABS motor relay circuit
- Brake actuator assembly (ABS motor relay)
Click here
C0274
Short in ABS Motor Relay Circuit
- ABS motor relay circuit
- Brake actuator assembly (ABS motor relay)
Click here
C0278
Open in ABS Solenoid Relay Circuit
- ABS No.2 fuse
- ABS solenoid relay circuit
- Brake actuator assembly (ABS solenoid relay)
Click here
C0279
Short in ABS Solenoid Relay Circuit
- ABS solenoid relay circuit
- Brake actuator assembly (ABS solenoid relay)
Click here
C1225
SM Solenoid Circuit
- SM1 or SM2 circuit
- Brake actuator assembly
Click here
C1240
Yaw Rate Sensor Discrimination
Yaw rate and acceleration sensor
Click here
C1241
Low Power Supply Voltage Malfunction
- ECU-IG No.1 fuse
- Battery
- Charging system
- Power source circuit
- Internal power supply circuit of the skid control ECU
Click here
C1243*1
Acceleration Sensor Stuck Malfunction
- Yaw rate and acceleration sensor
- Yaw rate and acceleration sensor circuit
Click here
C1245*1
Acceleration Sensor Output Malfunction
- Yaw rate and acceleration sensor
- Yaw rate and acceleration sensor circuit
- Sensor installation
Click here
C1361
Short in ABS Motor Fail Safe Relay Circuit
- ABS No.1 fuse
- ABS motor fail safe relay circuit
- Brake actuator assembly (ABS motor fail safe relay)
Click here
C1381
Acceleration Sensor Power Supply Voltage Malfunction
- Yaw rate and acceleration sensor
- Yaw rate and acceleration sensor power source circuit
Click here
C1401*1
Front Speed Sensor RH Malfunction
- Front speed sensor RH
- Speed sensor rotor
- Sensor installation
Click here
C1402*1
Front Speed Sensor LH Malfunction
- Front speed sensor LH
- Speed sensor rotor
- Sensor installation
Click here
C1403*1
Rear Speed Sensor RH Malfunction
- Rear speed sensor RH
- Speed sensor rotor
Click here
C1404*1
Rear Speed Sensor LH Malfunction
- Rear speed sensor LH
- Speed sensor rotor
Click here
C1405*1
Open or Short in Front Speed Sensor RH Circuit
- Front speed sensor RH
- Speed sensor circuit
- Brake actuator assembly (Skid control ECU)
Click here
C1406*1
Open or Short in Front Speed Sensor LH Circuit
- Front speed sensor LH
- Speed sensor circuit
- Brake actuator assembly (Skid control ECU)
Click here
C1407*1
Open or Short in Rear Speed Sensor RH Circuit
- Rear speed sensor RH
- Speed sensor wire
- Speed sensor circuit
- Brake actuator assembly (Skid control ECU)
Click here
C1408*1
Open or Short in Rear Speed Sensor LH Circuit
- Rear speed sensor LH
- Speed sensor wire
- Speed sensor circuit
- Brake actuator assembly (Skid control ECU)
Click here
C1413*1
Front Speed Sensor RH Output Malfunction
- Front speed sensor RH
- Speed sensor circuit
- Speed sensor rotor
- Brake actuator assembly (Skid control ECU)
Click here
C1414*1
Front Speed Sensor LH Output Malfunction
- Front speed sensor LH
- Speed sensor circuit
- Speed sensor rotor
- Brake actuator assembly (Skid control ECU)
Click here
C1415*1
Rear Speed Sensor RH Output Malfunction
- Rear speed sensor RH
- Speed sensor circuit
- Speed sensor rotor
- Brake actuator assembly (Skid control ECU)
Click here
C1416*1
Rear Speed Sensor LH Output Malfunction
- Rear speed sensor LH
- Speed sensor circuit
- Speed sensor rotor
- Brake actuator assembly (Skid control ECU)
Click here
C1417
High Power Supply Voltage Malfunction
- ECU-IG NO. 1 fuse
- Battery
- Charging system
- Power source circuit
- Internal power supply circuit of the skid control ECU
Click here
C1419
Acceleration Sensor Internal Circuit
Yaw rate and acceleration sensor
Click here
C1420
Acceleration Sensor Malfunction
- Sensor installation
- Yaw rate and acceleration sensor
Click here
C1421*2
Open or Short in Master Cylinder Pressure Sensor
Brake actuator assembly (Master cylinder pressure sensor)
Click here
C1422*2
Master Cylinder Pressure Sensor Zero Point High Malfunction
- Stop light switch
- Stop light switch circuit
- Master cylinder pressure sensor circuit
- Brake actuator assembly (Master cylinder pressure sensor)
Click here
C1423*2
Master Cylinder Pressure Sensor Zero Point Low Malfunction
Brake actuator assembly (Master cylinder pressure sensor)
Click here
C1424*2
Master Cylinder Pressure Sensor Output Malfunction
Brake actuator assembly (Master cylinder pressure sensor)
Click here
C1425
Open in Stop Light Switch Circuit
- STOP fuse
- Stop light switch
- Stop light switch circuit
- Brake actuator assembly (Skid control ECU)
Click here
C1427*1
Motor Malfunction
- Brake actuator assembly (Ground circuit)
- Brake actuator assembly (Motor circuit)
Click here
C1428*1
Motor Circuit Malfunction
Brake actuator assembly (Motor circuit)
Click here
U0073
Control Module Communication Bus OFF
CAN communication system
Click here
U0124
Lost Communication with Lateral Acceleration Sensor Module
CAN communication system (Skid control ECU to yaw rate and acceleration sensor)
Click here
*1, *2:
Even after the trouble areas are repaired, the ABS warning light will not go off unless the following operations are performed:
  1. *1:
    1. Drive the vehicle at 20 km/h (12 mph) for 30 seconds or more and check that the ABS warning light goes off.
    2. Clear the DTC.
  1. *2:
    1. Keep the vehicle stationary for 5 seconds or more and depress the brake pedal lightly 2 or 3 times.
    2. Drive the vehicle at a vehicle speed of 50 km/h (31 mph) and keep depressing the brake pedal strongly for approximately 3 seconds.
    3. Repeat the above operation 3 times or more and check that the ABS warning light goes off.
    4. Clear the DTC.

HINT:
In some cases, the tester cannot be used when the ABS warning light remains on.


VSC System 
DTC Code
Detection Item
Trouble Area
See page
43
ABS Control System Malfunction
ABS control system
Click here
C1201
Engine Control System Malfunction
Engine control system
Click here
C1203
ECM Communication Circuit Malfunction
ECM
Click here
C1210
Zero Point Calibration of Yaw Rate Sensor Undone
- Yaw rate and acceleration sensor
- Brake actuator assembly (Skid control ECU)
Click here
C1232
Acceleration Sensor Stuck Malfunction
- Yaw rate and acceleration sensor
- Yaw rate and acceleration sensor circuit
Click here
C1290
Steering Angle Sensor Zero Point Malfunction
- Yaw rate and acceleration sensor zero point calibration incomplete
- Poor adjustment of the centered position of the steering wheel
- Poor adjustment of front wheel alignment
Click here
C1336
Zero Point Calibration of Acceleration Sensor Undone
- Yaw rate and acceleration sensor
- Brake actuator assembly (Skid control ECU)
Click here
C1432
Steering Angle Sensor Power Source Voltage Malfunction
- Steering angle sensor power supply
- Steering angle sensor (built in to the spiral cable)
Click here
C1433
Steering Angle Sensor Internal Circuit
Steering angle sensor (built in to the spiral cable)
Click here
C1434
Steering Angle Sensor Output Malfunction
- Steering angle sensor power supply
- Steering angle sensor (built in to the spiral cable)
- Brake actuator assembly (Skid control ECU)
Click here
C1435
Yaw Rate Sensor Internal Circuit
Yaw rate and acceleration sensor
Click here
C1436
Yaw Rate Sensor Malfunction
Yaw rate and acceleration sensor
Click here
C1437
Lost Communication with ECM
- CAN communication system (Skid control ECU to ECM)
- Brake actuator assembly (Skid control ECU)
Click here
U0100
Lost Communication with ECM / PCM
CAN communication system (Skid control ECU to ECM)
Click here
U0123
Lost Communication with Yaw Rate Sensor Module
CAN communication system (Skid control ECU to yaw rate and acceleration sensor)
Click here
U0126
Lost Communication with Steering Angle Sensor Module
CAN communication system (Skid control ECU to steering angle sensor)
Click here

HINT:
In some cases, the tester cannot be used when the VSC OFF indicator light remains on.


ABS System Test Mode 
DTC Code
Detection Item
Trouble Area
See page
C1271
Low Output Signal of Front Speed Sensor RH (Test Mode DTC)
- Front speed sensor RH
- Speed sensor rotor
- Sensor installation
Click here
C1272
Low Output Signal of Front Speed Sensor LH (Test Mode DTC)
- Front speed sensor LH
- Speed sensor rotor
- Sensor installation
Click here
C1273
Low Output Signal of Rear Speed Sensor RH (Test Mode DTC)
- Rear speed sensor RH
- Speed sensor rotor
Click here
C1274
Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)
- Rear speed sensor LH
- Speed sensor rotor
Click here
C1275
Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)
- Front speed sensor RH
- Speed sensor rotor
Click here
C1276
Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)
- Front speed sensor LH
- Speed sensor rotor
Click here
C1277
Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC)
- Rear speed sensor RH
- Speed sensor rotor
Click here
C1278
Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
- Rear speed sensor LH
- Speed sensor rotor
Click here
C1279
Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)
- Yaw rate and acceleration sensor
- Sensor installation
Click here
C1281
Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC)
Brake actuator assembly (Master cylinder pressure sensor)
Click here

VSC System Test Mode 
DTC Code
Detection Item
Trouble Area
See page
C0371
Yaw Rate Sensor (Test Mode DTC)
Yaw rate and acceleration sensor
Click here