Diagnostic Trouble Code Chart

2009 Toyota Corolla S, 1.8 U, StandardSECTION Diagnostic Trouble Code Chart
NOTE: Turn the ignition switch off before removing parts.

HINT:

  • If no malfunction is found when inspecting parts, inspect the skid control ECU and ground points for poor contact.
  • 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.
  • When 2 or more DTCs are detected, perform circuit inspection one by one until the problem is identified.
  • Inspect the fuses and relays before investigating the trouble areas as shown in the table below.

ABS DTC 

ABS DTC DETECTION REFERENCE CHART

DTC Code Detection Item Trouble Area
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)
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)
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)
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)
C0226/21  SFR Solenoid Circuit
  1. SFRR or SFRH circuit
  2. Brake actuator assembly
C0236/22  SFL Solenoid Circuit
  1. SFLR or SFLH circuit
  2. Brake actuator assembly
C0246/23  SRR Solenoid Circuit
  1. SRRR or SRRH circuit
  2. Brake actuator assembly
C0256/24  SRL Solenoid Circuit
  1. SRLR or SRLH circuit
  2. Brake actuator assembly
C0273/13 (1) Open in ABS Motor Relay Circuit
  1. ABS NO. 1 fuse
  2. ABS motor relay circuit
  3. Brake actuator assembly (ABS motor relay)
C0274/14  Short to B+ in ABS Motor Relay Circuit
  1. ABS motor relay circuit
  2. Brake actuator assembly (ABS motor relay)
C0278/11  Open in ABS Solenoid Relay Circuit
  1. ABS NO. 3 fuse
  2. ABS solenoid relay circuit
  3. Brake actuator assembly (ABS solenoid relay)
C0279/12  Short to B+ in ABS Solenoid Relay Circuit
  1. ABS solenoid relay circuit
  2. Brake actuator assembly (ABS solenoid relay)
C1235/35 (1) 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)
C1236/36 (1) 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)
C1238/38 (1) 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)
C1239/39 (1) 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)
C1241/41  Low Battery Positive Voltage or Abnormally High Battery Positive Voltage
  1. ECU-IG NO. 1 fuse
  2. Battery
  3. Charging system
  4. Power source circuit
  5. Internal power supply circuit of the skid control ECU
C1249/49  Open in Stop Light Switch Circuit
  1. STOP fuse
  2. Stop light switch
  3. Stop light switch circuit
  4. Brake actuator assembly (Skid control ECU)
C1251/51 (1) Open in Pump Motor Circuit
  1. Brake actuator assembly (Ground circuit)
  2. Brake actuator assembly (Motor circuit)
U0073/94  Control Module Communication Bus OFF CAN communication system
(1) 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 DTCs.

    HINT:

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

ABS Test Mode DTC 

ABS TEST MODE DTC REFERENCE CHART

DTC Code Detection Item Trouble Area
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
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
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
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
C1275/75  Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC) Speed sensor rotor
C1276/76  Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC) Speed sensor rotor
C1277/77  Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC) Speed sensor rotor
C1278/78  Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC) Speed sensor rotor
RENDER: 1.0x

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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.