ANTI-LOCK BRAKE SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Tech Tips


  • If no abnormality is found when inspecting parts, inspect the skid control ECU and ground points for poor contact.

  • If a trouble code is output during the DTC check, check the circuit indicated by the DTC. For details of each code, refer to the "See page" for the respective "DTC Code" in the DTC chart.

  • When 2 or more DTCs are output, perform circuit inspection one by one until the problem is identified.

DTC Chart of ABS
DTC Code Detection Item Trouble Area See page
C0200/31* Front Speed Sensor RH Circuit

- Front speed sensor RH

- Speed sensor circuit

- Speed sensor rotor (Front axle hub sub-assembly RH)

- Sensor installation

- Skid control ECU (Brake actuator assembly)

Click here

C0205/32* Front Speed Sensor LH Circuit

- Front speed sensor LH

- Speed sensor circuit

- Speed sensor rotor (Front axle hub sub-assembly LH)

- Sensor installation

- Skid control ECU (Brake actuator assembly)

Click here

C0210/33* Rear Speed Sensor RH Circuit

- Rear speed sensor RH (Rear axle hub and bearing assembly RH)

- Speed sensor circuit

- Speed sensor rotor (Rear axle hub and bearing assembly RH)

- Sensor installation

- Skid control ECU (Brake actuator assembly)

Click here

C0215/34* Rear Speed Sensor LH Circuit

- Rear speed sensor LH (Rear axle hub and bearing assembly LH)

- Speed sensor circuit

- Speed sensor rotor (Rear axle hub and bearing assembly LH)

- Sensor installation

- Skid control ECU (Brake actuator assembly)

Click here

C0226/21 SFR Solenoid Circuit

- SFRR or SFRH circuit

- Brake actuator assembly

Click here

C0236/22 SFL Solenoid Circuit

- SFLR or SFLH circuit

- Brake actuator assembly

Click here

C0246/23 SRR Solenoid Circuit

- SRRR or SRRH circuit

- Brake actuator assembly

Click here

C0256/24 SRL Solenoid Circuit

- SFLR or SRLH circuit

- Brake actuator assembly

Click here

C0273/13* Open or Short Circuit in ABS Motor Relay Circuit

- ABS NO. 1 fuse

- Motor relay circuit

- Brake actuator assembly

Click here

C0278/11 Open or Short Circuit in ABS Solenoid Relay Circuit

- ABS NO. 2 fuse

- Solenoid relay circuit

- Brake actuator assembly

Click here

C1237/37 Speed Sensor Rotor Faulty

- Tire and wheel size

- Tire deformation

- Speed sensor rotor (Front axle hub sub-assembly or rear axle hub and bearing assembly)

- Speed sensor circuit

- Skid control ECU (Brake actuator assembly)

Click here

C1241/41 Low Battery Positive Voltage or Abnormally High Battery Positive Voltage

- ECU-IG NO. 1 fuse

- Battery

- Charging system

- Power source circuit

- Skid control ECU (Brake actuator assembly)

Click here

C1249/49 Open in Stop Light Switch Circuit

- STOP fuse

- Stop light switch

- Stop light switch circuit

- Stop light control relay

- Skid control ECU (Brake actuator assembly)

Click here

C1300/62 Skid Control ECU Malfunction - Skid control ECU (Brake actuator assembly)

Click here

C1330/35 Right Front Speed Sensor Circuit

- Front speed sensor RH

- Speed sensor circuit

- Sensor installation

Click here

C1331/36 Left Front Speed Sensor Circuit

- Front speed sensor LH

- Speed sensor circuit

- Sensor installation

Click here

C1332/38 Right Rear Speed Sensor Circuit

- Rear speed sensor RH (Rear axle hub and bearing assembly RH)

- Speed sensor circuit

- Sensor installation

Click here

C1333/39 Left Rear Speed Sensor Circuit

- Rear speed sensor LH (Rear axle hub and bearing assembly LH)

- Speed sensor circuit

- Sensor installation

Click here

U0073/94 Control Module Communication Bus OFF CAN communication system

Click here

*: 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.

  2. Clear the DTC.

Tech Tips

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

Test Mode DTC of ABS
DTC Code Detection Item Trouble Area See page
C1271/71 Low Output Signal of Front Speed Sensor RH (Test Mode DTC)

- Front speed sensor RH

- Speed sensor circuit

- Speed sensor rotor (Front axle hub sub-assembly RH)

Click here

C1272/72 Low Output Signal of Front Speed Sensor LH (Test Mode DTC)

- Front speed sensor LH

- Speed sensor circuit

- Speed sensor rotor (Front axle hub sub-assembly LH)

Click here

C1273/73 Low Output Signal of Rear Speed Sensor RH (Test Mode DTC)

- Rear speed sensor RH (Rear axle hub and bearing assembly RH)

- Sensor installation

- Speed sensor rotor (Rear axle hub and bearing assembly RH)

Click here

C1274/74 Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)

- Rear speed sensor LH (Rear axle hub and bearing assembly LH)

- Sensor installation

- Speed sensor rotor (Rear axle hub and bearing assembly LH)

Click here

C1275/75 Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC) Speed sensor rotor (Front axle hub sub-assembly RH)

Click here

C1276/76 Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC) Speed sensor rotor (Front axle hub sub-assembly LH)

Click here

C1277/77 Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC) Speed sensor rotor (Rear axle hub and bearing assembly RH)

Click here

C1278/78 Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC) Speed sensor rotor (Rear axle hub and bearing assembly LH)

Click here