Contents Wiring diagrams Section: Brake Control: Diagnosis All sections

DIAGNOSTIC TROUBLE CODE CHART Lexus ES XV40

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 CODE»(ref-283114-S20724198772008041700000) " 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 CodeDetection ItemTrouble Area
C0200/31 (*1)Front Speed Sensor RH CircuitFront speed sensor RH Speed sensor circuit Speed sensor rotor Sensor installation Brake actuator assembly (Skid control ECU)
C0205/32 (*1)Front Speed Sensor LH CircuitFront speed sensor LH Speed sensor circuit Speed sensor rotor Sensor installation Brake actuator assembly (Skid control ECU)
C0210/33 (*1)Rear Speed Sensor RH CircuitRear speed sensor RH Speed sensor circuit Speed sensor rotor Sensor installation Brake actuator assembly (Skid control ECU)
C0215/34 (*1)Rear Speed Sensor LH CircuitRear speed sensor LH Speed sensor circuit Speed sensor rotor Sensor installation Brake actuator assembly (Skid control ECU)
C0226/21SFR Solenoid CircuitBrake actuator assembly SFRH or SFRR circuit
C0236/22SFL Solenoid CircuitBrake actuator assembly SFLH or SFLR circuit
C0246/23SRR Solenoid CircuitBrake actuator assembly SRRH or SRRR circuit
C0256/24SRL Solenoid CircuitBrake actuator assembly SRLH or SRLR circuit
C0273/13 (*1)Open in ABS Motor Relay CircuitABS NO. 1 fuse VSC NO. 2 relay VSC NO. 2 relay circuit Brake actuator assembly
C0274/14Short to B+ in ABS Motor Relay CircuitABS NO. 1 fuse VSC NO. 2 relay VSC NO. 2 relay circuit Brake actuator assembly
C0278/11Open in ABS Solenoid Relay CircuitABS NO. 2 fuse ABS solenoid relay ABS solenoid relay circuit Brake actuator assembly
C0279/12Short to B+ In ABS Solenoid Relay CircuitBrake actuator assembly
C1225/25SM Solenoid CircuitBrake actuator assembly SM1 or SM2 circuit
C1235/35Foreign Object is Attached on Tip of Front Speed Sensor RHFront speed sensor RH Speed sensor rotor Sensor installation Brake actuator assembly (Skid control ECU)
C1236/36Foreign Object is Attached on Tip of Front Speed Sensor LHFront speed sensor LH Speed sensor rotor Sensor installation Brake actuator assembly (Skid control ECU)
C1238/38Foreign Object is Attached on Tip of Rear Speed Sensor RHRear speed sensor RH Speed sensor rotor Sensor installation Brake actuator assembly (Skid control ECU)
C1239/39Foreign Object is Attached on Tip of Rear Speed Sensor LHRear speed sensor LH Speed sensor rotor Sensor installation Brake actuator assembly (Skid control ECU)
C1241/41Low Battery Positive VoltageECU-IG NO. 2 fuse Battery Charging system Power source circuit Internal power supply circuit of the skid control ECU
C1243/43 (*1)Acceleration Sensor Stuck MalfunctionYaw rate and acceleration sensor Yaw rate and acceleration sensor circuit
C1244/44Open or Short in Acceleration Sensor CircuitYaw rate and acceleration sensor Yaw rate and acceleration sensor circuit
C1245/45 (*1)Acceleration Sensor Output MalfunctionYaw rate and acceleration sensor Yaw rate and acceleration sensor circuit
C1246/46 (*2)Master Cylinder Pressure Sensor MalfunctionMaster cylinder pressure sensor Master cylinder pressure sensor circuit Stop light switch circuit Brake actuator assembly
C1249/49Open in Stop Light Switch CircuitSTOP fuse Stop light switch Stop light switch circuit Stop light control relay (*3) Stop light control relay circuit (*3) Brake actuator assembly (Skid control ECU)
C1251/51 (*1)Open in Pump Motor CircuitBrake actuator assembly (GND circuit) Brake actuator assembly (Motor circuit)
C1361/91Short Circuit in ABS Motor Fail Safe Relay CircuitABS NO. 1 fuse VSC NO. 1 (fail safe) relay VSC NO. 1 (fail safe) relay circuit Brake actuator assembly
C1381/97Yaw Rate and / or Acceleration Sensor Power Supply Voltage MalfunctionYaw rate and acceleration sensor Yaw rate and acceleration sensor power source circuit
U0073/94Control Module Communication Bus OFFCAN communication system
U0124/95Lost Communication with Lateral Acceleration Sensor ModuleCAN communication system (Skid control ECU to yaw rate and acceleration sensor)
Even after the trouble areas are repaired, the ABS warning light will not go off unless the following operations are performed
(*1): 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. (*2): Keep the vehicle stationary for 5 seconds or more and depress the brake pedal lightly 2 or 3 times. Drive the vehicle at the vehicle speed of 50 km/h (31 mph) and keep depressing the brake pedal strongly for approximately 3 seconds. Repeat the above operation 3 times or more and check that the ABS warning light goes off. Clear the DTC. HINT: In some cases, the intelligent tester cannot be used when the ABS warning light remains on. (*3): with dynamic radar cruise control

DTC CHART OF ABS

DTC chart of VSC

DTC CodeDetection ItemTrouble Area
43ABS Control System MalfunctionABS control system
C1201/51Engine Control System MalfunctionEngine control system
C1203/53ECM Communication Circuit MalfunctionECM
C1210/36Zero Point Calibration of Yaw Rate Sensor UndoneBrake actuator assembly (Skid control ECU) Yaw rate and acceleration sensor Zero point calibration undone
C1231/31Steering Angle Sensor Circuit MalfunctionSteering angle sensor Steering angle sensor circuit Steering angle sensor power supply Brake actuator assembly (Skid control ECU)
C1232/32Stuck in Acceleration SensorYaw rate and acceleration sensor Yaw rate and acceleration sensor circuit
C1234/34Yaw Rate Sensor MalfunctionYaw rate and acceleration sensor Yaw rate and acceleration sensor circuit
C1290/66Steering Angle Sensor Zero Point MalfunctionYaw rate and acceleration sensor zero point calibration incomplete Poor adjustment of the centered position of the steering wheel Poor adjustment of front wheel alignment
C1336/39Zero Point Calibration of Acceleration Sensor UndoneBrake actuator assembly (Skid control ECU) Yaw rate and acceleration sensor Zero point calibration undone
C1380/64 (*3)Stop Light Control Relay MalfunctionSTOP fuse Stop light switch Stop light switch circuit Stop light control relay Stop light control relay circuit Brake actuator assembly (Skid control ECU)
U0100/65Lost Communication with ECM / PCMCAN communication system (Skid control ECU to ECM)
U0123/62Lost Communication with Yaw Rate Sensor ModuleCAN communication system (Skid control ECU to yaw rate and acceleration sensor)
U0126/63Lost Communication with Steering Angle Sensor ModuleCAN communication system (Skid control ECU to steering angle sensor)
HINT: In some cases, the intelligent tester cannot be used when the VSC warning (multi information display) remains on. (*3): with dynamic radar cruise control

DTC CHART OF VSC

Test Mode DTC of ABS

DTC CodeDetection ItemTrouble Area
C1271/71Low Output Signal of Front Speed Sensor RH (Test Mode DTC)Front speed sensor RH Sensor installation Speed sensor rotor
C1272/72Low Output Signal of Front Speed Sensor LH (Test Mode DTC)Front speed sensor LH Sensor installation Speed sensor rotor
C1273/73Low Output Signal of Rear Speed Sensor RH (Test Mode DTC)Rear speed sensor RH Sensor installation Speed sensor rotor
C1274/74Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)Rear speed sensor LH Sensor installation Speed sensor rotor
C1275/75Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)Speed sensor rotor
C1276/76Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)Speed sensor rotor
C1277/77Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC)Speed sensor rotor
C1278/78Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)Speed sensor rotor
C1279/79Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)Yaw rate and acceleration sensor Sensor installation
C1281/81Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC)Stop light switch Master cylinder pressure sensor

DTC CHART OF ABS

Test Mode DTC of VSC

DTC CodeDetection ItemTrouble Area
C0371/71Yaw Rate Sensor (Test Mode DTC)Yaw rate and acceleration sensor

DTC CHART OF VSC