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Problem Symptoms Table

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.
DTC INDEX

DTC Description
DTC C0200/31, C0205/32, C1235/35, C1236/36  RIGHT FRONT SPEED SENSOR CIRCUIT, LEFT FRONT SPEED SENSOR CIRCUIT, FOREIGN MATTER IS ATTACHED ON TIP OF RIGHT FRONT SENSOR, FOREIGN MATTER IS ATTACHED ON TIP OF LEFT FRONT SENSOR
DTC C0210/33, C0215/34, C1238/38, C1239/39  RIGHT REAR SPEED SENSOR CIRCUIT, LEFT REAR SPEED SENSOR CIRCUIT, FOREIGN MATTER IS ATTACHED ON TIP OF RIGHT REAR SENSOR, FOREIGN MATTER IS ATTACHED ON TIP OF LEFT REAR SENSOR
DTC C0226/21, C0236/22, C0246/23, C0256/24  SFR SOLENOID CIRCUIT, SFL SOLENOID CIRCUIT, SRR SOLENOID CIRCUIT, SRL SOLENOID CIRCUIT
DTC C0273/13, C0274/14  OPEN CIRCUIT IN ABS MOTOR RELAY CIRCUIT, B+ SHORT CIRCUIT IN ABS MOTOR RELAY CIRCUIT
DTC C0278/11, C0279/12  OPEN CIRCUIT IN ABS SOLENOID RELAY CIRCUIT, SHORT CIRCUIT IN ABS SOLENOID RELAY CIRCUIT
DTC C1241/41  LOW BATTERY POSITIVE VOLTAGE OR ABNORMALLY HIGH BATTERY POSITIVE VOLTAGE
DTC C1249/49  OPEN CIRCUIT IN STOP LIGHT SWITCH CIRCUIT
DTC C1251/51  PUMP MOTOR IS LOCKED/OPEN CIRCUIT IN PUMP MOTOR GROUND

If a normal code is displayed during the DTC check although the problem still occurs, check the circuits each problem symptom in the order given in table below .

NOTE: When replacing skid control ECU, sensor or etc., turn the ignition switch OFF.
PROBLEM SYMPTOMS TABLE - ANTI-LOCK BRAKE SYSTEM WITH EBD

Symptom Suspected Area
ABS does not operate Only when 1 to 4 are all normal but problem still occurs, replace skid control ECU
  1. Check DTC reconfirming that normal code is output
  2. IG power source circuit and ground circuit
  3. Speed sensor circuit
  4. Check brake actuator with a hand-held tester If abnormal, check hydraulic circuit for leakage
ABS does not operate efficiently Only when 1 to 5 are all normal but problem still occurs, replace skid control ECU
  1. Check DTC reconfirming that normal code is output
  2. IG power source circuit and ground circuit
  3. Speed sensor circuit
  4. Stop light switch circuit
  5. Check brake actuator with a hand-held tester

If abnormal, check hydraulic circuit for leakage
ABS warning light is abnormal
  1. ABS warning light circuit
  2. Skid control ECU
Brake warning light is abnormal
  1. Brake warning light circuit
  2. Skid control ECU
DTC check Only when 1 and 2 are all normal and problem still occurs, replace skid control ECU
  1. ABS warning light circuit
  2. Tc terminal circuit
Speed sensor signal check is impossible
  1. Ts terminal circuit
  2. Skid control ECU
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