Vehicle Stability Control System (W/O Vdim) Diagnostic Trouble Code Chart

Brake. Lexus Is250, Is220D. Gse20 Ale20
Brake Control. Lexus Is250, Is220D. Gse20 Ale20

Vehicle Stability Control System (W/O Vdim) -- Diagnostic Trouble Code Chart


  1. 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 No." in the DTC chart.
  2. Inspect the fuse and relay before investigating the trouble areas as shown in the table below.

DTC chart of ABS:
DTC No.
Detection Item
Trouble Area
See page
C0200/31 (*1)
Front Speed Sensor RH Circuit
1. Front speed sensor RH
2. Speed sensor circuit
3. Speed sensor rotor
4. Sensor installation
5. Brake actuator assembly (Skid control ECU)
Click here
C0205/32 (*1)
Front Speed Sensor LH Circuit
1. Front speed sensor LH
2. Speed sensor circuit
3. Speed sensor rotor
4. Sensor installation
5. Brake actuator assembly (Skid control ECU)
Click here
C0210/33 (*1)
Rear Speed Sensor RH Circuit
1. Rear speed sensor RH
2. Speed sensor circuit
3. Speed sensor rotor
4. Sensor installation
5. Brake actuator assembly (Skid control ECU)
Click here
C0215/34 (*1)
Rear Speed Sensor LH Circuit
1. Rear speed sensor LH
2. Speed sensor circuit
3. Speed sensor rotor
4. Sensor installation
5. Brake actuator assembly (Skid control ECU)
Click here
C0226/21
SFR Solenoid Circuit
1. Brake actuator assembly
2. SFRH or SFRR circuit
Click here
C0236/22
SFL Solenoid Circuit
1. Brake actuator assembly
2. SFLH or SFLR circuit
Click here
C0246/23
SRR Solenoid Circuit
1. Brake actuator assembly
2. SRRH or SRRR circuit
Click here
C0256/24
SRL Solenoid Circuit
1. Brake actuator assembly
2. SRLH or SRLR circuit
Click here
C0273/13 (*1)
Open in ABS Motor Relay Circuit
1. ABS1 fuse
2. ABS MOTOR2 relay
3. ABS MOTOR2 relay circuit
4. Brake actuator assembly
Click here
C0274/14
Short to B+ in ABS Motor Relay Circuit
1. ABS1 fuse
2. ABS MOTOR2 relay
3. ABS MOTOR2 relay circuit
4. Brake actuator assembly
Click here
C0278/11
Open in ABS Solenoid Relay Circuit
1. ABS2 fuse
2. ABS solenoid relay
3. ABS solenoid relay circuit
4. Brake actuator assembly
Click here
C0279/12
Short to B+ in ABS Solenoid Relay Circuit
Brake actuator assembly
Click here
C1225/25
SM Solenoid Circuit
1. Brake actuator assembly
2. SM1 or SM2 circuit
Click here
C1235/35
Foreign Object is Attached on Tip of Front Speed Sensor RH
1. Front speed sensor RH
2. Speed sensor rotor
3. Sensor installation
4. Brake actuator assembly (Skid control ECU)
Click here
C1236/36
Foreign Object is Attached on Tip of Front Speed Sensor LH
1. Front speed sensor LH
2. Speed sensor rotor
3. Sensor installation
4. Brake actuator assembly (Skid control ECU)
Click here
C1238/38
Foreign Object is Attached on Tip of Rear Speed Sensor RH
1. Rear speed sensor RH
2. Speed sensor rotor
3. Sensor installation
4. Brake actuator assembly (Skid control ECU)
Click here
C1239/39
Foreign Object is Attached on Tip of Rear Speed Sensor LH
1. Rear speed sensor LH
2. Speed sensor rotor
3. Sensor installation
4. Brake actuator assembly (Skid control ECU)
Click here
C1241/41
Low Battery Positive Voltage
1. Battery
2. Charging system
3. Power source circuit
4. Internal power supply circuit of the skid control ECU
Click here
C1243/43 (*1)
Acceleration Sensor Stuck Malfunction
1. Yaw rate and acceleration sensor
2. Yaw rate and acceleration sensor circuit
Click here
C1244/44
Open or Short in Acceleration Sensor Circuit
1. Yaw rate and acceleration sensor
2. Yaw rate and acceleration sensor circuit
Click here
C1245/45 (*1)
Acceleration Sensor Output Malfunction
1. Yaw rate and acceleration sensor
2. Yaw rate and acceleration sensor circuit
Click here
C1246/46 (*2)
Master Cylinder Pressure Sensor Malfunction
1. Master cylinder pressure sensor
2. Master cylinder pressure sensor circuit
3. Stop light switch circuit
4. Brake actuator assembly
Click here
C1249/49
Open in Stop Light Switch Circuit
1. STOP SW fuse
2. Stop light switch
3. Stop light switch circuit
4. Stop light control relay (A/T)
5. Stop light control relay circuit (A/T)
6. Brake actuator assembly (Skid control ECU)
Click here
C1251/51 (*1)
Open in Pump Motor Circuit
1. Brake actuator assembly (GND circuit)
2. Brake actuator assembly (Motor circuit)
Click here
C1267/67
Brake Pedal Load Sensing Switch
1. Brake pedal load sensing switch
2. Brake pedal load sensing switch circuit
Click here
C1361/91
Short Circuit in ABS Motor Fail Safe Relay Circuit
1. ABS1 fuse
2. ABS MOTOR1 (fail safe) relay
3. ABS MOTOR1 (fail safe) relay circuit
4. Brake actuator assembly
Click here
C1381/97
Yaw Rate and / or Acceleration Sensor Power Supply Voltage Malfunction
1. Yaw rate and acceleration sensor
2. Yaw rate and acceleration sensor power source circuit
Click here
U0073/94
Control Module Communication Bus OFF
CAN communication system
Click here
U0124/95
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 12 mph (20 km/h) 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 the vehicle speed of 31 mph (50 km/h) 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 intelligent tester cannot be used when the ABS warning light remains on.

DTC chart of VSC:
DTC No.
Detection Item
Trouble Area
See page
C1201/51
Engine Control System Malfunction
Engine control system
Click here
C1203/53
ECM Communication Circuit Malfunction
ECM
Click here
C1210/36
Zero Point Calibration of Yaw Rate Sensor Undone
1. Brake actuator assembly (Skid control ECU)
2. Yaw rate and acceleration sensor
3. Zero point calibration undone
Click here
C1223/43
ABS Control System Malfunction
ABS control system
Click here
C1231/31
Steering Angle Sensor Circuit Malfunction
1. Steering angle sensor
2. Steering angle sensor circuit
3. Steering angle sensor power supply
4. Brake actuator assembly (Skid control ECU)
Click here
C1232/32
Stuck in Acceleration Sensor
1. Yaw rate and acceleration sensor
2. Yaw rate and acceleration sensor circuit
Click here
C1234/34
Yaw Rate Sensor Malfunction
1. Yaw rate and acceleration sensor
2. Yaw rate and acceleration sensor circuit
Click here
C1290/66
Steering Angle Sensor Zero Point Malfunction
1. Yaw rate and acceleration sensor zero point calibration incomplete
2. Poor adjustment of the centered position of the steering wheel
3. Poor adjustment of front wheel alignment
Click here
C1336/39
Zero Point Calibration of Acceleration Sensor Undone
1. Brake actuator assembly (Skid control ECU)
2. Yaw rate and acceleration sensor
3. Zero point calibration undone
Click here
C1380/64
Stop Light Control Relay Malfunction
1. STOP SW fuse
2. Stop light switch
3. Stop light switch circuit
4. Stop light control relay (A/T)
5. Stop light control relay circuit (A/T)
6. Brake actuator assembly (Skid control ECU)
Click here
U0100/65
Lost Communication with ECM / PCM
CAN communication system (Skid control ECU to ECM)
Click here
U0123/62
Lost Communication with Yaw Rate Sensor Module
CAN communication system (Skid control ECU to yaw rate and acceleration sensor)
Click here
U0126/63
Lost Communication with Steering Angle Sensor Module
CAN communication system (Skid control ECU to steering angle sensor)
Click here
HINT:
In some cases, the intelligent tester cannot be used when the VSC warning (multi information display and master caution indicator light) light remains on.

Test Mode DTC of ABS:
DTC No.
Detection Item
Trouble Area
See page
C1271/71
Low Output Signal of Front Speed Sensor RH (Test Mode DTC)
1. Front speed sensor RH
2. Sensor installation
3. Speed sensor rotor
Click here
C1272/72
Low Output Signal of Front Speed Sensor LH (Test Mode DTC)
1. Front speed sensor LH
2. Sensor installation
3. Speed sensor rotor
Click here
C1273/73
Low Output Signal of Rear Speed Sensor RH (Test Mode DTC)
1. Rear speed sensor RH
2. Sensor installation
3. Speed sensor rotor
Click here
C1274/74
Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)
1. Rear speed sensor LH
2. Sensor installation
3. Speed sensor rotor
Click here
C1275/75
Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)
Speed sensor rotor
Click here
C1276/76
Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)
Speed sensor rotor
Click here
C1277/77
Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC)
Speed sensor rotor
Click here
C1278/78
Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
Speed sensor rotor
Click here
C1279/79
Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)
1. Yaw rate and acceleration sensor
2. Sensor installation
Click here
C1281/81
Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC)
1. Stop light switch
2. Brake pedal load sensing switch
3. Master cylinder pressure sensor
Click here

Test mode DTC of VSC:
DTC No.
Detection Item
Trouble Area
See page
C0371/71
Yaw Rate Sensor (Test Mode DTC)
Yaw rate and acceleration sensor
Click here