LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2007 >> RX 400h AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 345 (Brake Control System) >> Anti-Lock Brake System >> Diagnostic Trouble Code Chart
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: When replacing any parts, turn the ignition switch off.

HINT:

DTC chart: 

DTC CHART

DTC Code Detection Item Trouble Areas
C0200/31  (*1) Right Front Wheel Speed Sensor Signal
  1. Front speed sensor RH
  2. Front speed sensor RH circuit
  3. Sensor installation
  4. Foreign matter on sensor tip or sensor rotor
  5. Brake actuator (skid control ECU)
C0205/32 (*1) Left Front Wheel Speed Sensor Signal
  1. Front speed sensor LH
  2. Front speed sensor LH circuit
  3. Sensor installation
  4. Foreign matter on sensor tip or sensor rotor
  5. Brake actuator (skid control ECU)
C0210/33  (*1) Right Rear Wheel Speed Sensor Signal
  1. Skid control sensor RH
  2. Skid control sensor RH circuit
  3. Sensor installation
  4. Brake actuator (skid control ECU)
C0215/34 (*1) Left Rear Wheel Speed Sensor Signal
  1. Skid control sensor LH
  2. Skid control sensor LH circuit
  3. Sensor installation
  4. Brake actuator (skid control ECU)
C0226/21  SFR Solenoid Circuit Brake actuator
C0236/22  SFL Solenoid Circuit Brake actuator
C0246/23  SRR Solenoid Circuit Brake actuator
C0256/24  SRL Solenoid Circuit Brake actuator
C0273/13  Open in ABS Motor Relay Circuit
  1. ABS1/VSC1 fuse
  2. Wire harness (+ BM circuit)
  3. Brake actuator (skid control ECU)
C0274/14  Short to B+ in ABS Motor Relay Circuit
  1. ABS1/VSC1 fuse
  2. Wire harness (+ BM circuit)
  3. Brake actuator (skid control ECU)
C0278/11  Open in ABS Solenoid Relay Circuit
  1. ABS2/VSC2 fuse
  2. Wire harness (+BS)
  3. Brake actuator (skid control ECU)
C0279/12  Short to B+ in ABS Solenoid Relay Circuit
  1. ABS2/VSC2 fuse
  2. Wire harness (+BS)
  3. Brake actuator (skid control ECU)
C1235/35  Foreign Object is Attached on Tip of Front Speed Sensor RH
  1. Front speed sensor RH
  2. Front speed sensor RH circuit
  3. Foreign matter on sensor tip or sensor rotor
  4. Brake actuator (skid control ECU)
C1236/36  Foreign Object is Attached on Tip of Front Speed Sensor LH
  1. Front speed sensor LH
  2. Front speed sensor LH circuit
  3. Foreign matter on sensor tip or sensor rotor
  4. Brake actuator (skid control ECU)
C1238/38  Foreign Object is Attached on Tip of Rear Speed Sensor RH
  1. Skid control sensor RH
  2. Skid control sensor RH circuit
  3. Brake actuator (skid control ECU)
C1239/39  Foreign Object is Attached on Tip of Rear Speed Sensor LH
  1. Skid control sensor LH
  2. Skid control sensor LH circuit
  3. Brake actuator (skid control ECU)
C1241/41  Low Battery Positive Voltage or Abnormally High Battery Positive Voltage
  1. Battery
  2. Charging system
  3. ECU-IG fuse
  4. AM1 fuse
  5. IG1 relay
  6. Brake actuator (skid control ECU)
C1249/49  Open in Stop Light Switch Circuit
  1. Stop light switch
  2. Stop light switch circuit
  3. Brake actuator (skid control ECU)
C1251/51  (*1) Open in Pump Motor Circuit Brake actuator
U0073/94  Control Module Communication Bus OFF CAN communication system
HINT:
*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 12 mph (20 km/h) for 30 seconds or more and check that the ABS warning light goes off.
  2. Clear the DTC(s).

Test Mode DTC: 

TEST MODE DTC CHART

DTC Code Detection Item Trouble Areas
C1271/71  Low Output Signal of Front Speed Sensor RH (Test Mode DTC)
  1. Front speed sensor RH
  2. Front speed sensor RH circuit
  3. Sensor installation
  4. Foreign matter on sensor tip or sensor rotor
C1272/72  Low Output Signal of Front Speed Sensor LH (Test Mode DTC)
  1. Front speed sensor LH
  2. Front speed sensor LH circuit
  3. Sensor installation
  4. Foreign matter on sensor tip or sensor rotor
C1273/73  Low Output Signal of Rear Speed Sensor RH (Test Mode DTC)
  1. Skid control sensor RH
  2. Skid control sensor RH circuit
  3. Sensor installation
C1274/74  Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)
  1. Skid control sensor LH
  2. Skid control sensor LH circuit
  3. Sensor installation
C1275/75  Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)
  1. Front speed sensor RH
  2. Front speed sensor RH circuit
  3. Foreign matter on sensor tip or sensor rotor
C1276/76  Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)
  1. Front speed sensor LH
  2. Front speed sensor LH circuit
  3. Foreign matter on sensor tip or sensor rotor
C1277/77  Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC)
  1. Skid control sensor RH
  2. Skid control sensor RH circuit
C1278/78  Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
  1. Skid control sensor LH
  2. Skid control sensor LH circuit