Section 34 (Brake Control)
WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
- Electronically Controlled Brake System
- Precaution
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Check For Intermittent Problems
- Initialization
- Calibration
- Test Mode Procedure
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- DTC Check / Clear
- Freeze Frame Data
- Fail-Safe Chart
- Data List / Active Test
- Diagnostic Trouble Code Chart
- DTC C0200/31 Front Speed Sensor RH Circuit; DTC C0205/32 Front Speed Sensor LH Circuit; DTC C1271/71 Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272/72 Low Output Signal of Front Speed Sensor LH (Test Mode DTC)
- DTC C0210/33 Rear Speed Sensor RH Circuit; DTC C0215/34 Rear Speed Sensor LH Circuit; DTC C1273/73 Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74 Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)
- DTC C1202/68 Master Reservoir Level Malfunction
- DTC C1203/95 ECM Communication Circuit Malfunction
- DTC C1210/36 Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336/98 Zero Point Calibration of Deceleration Sensor Undone
- DTC C1231/31 Steering Angle Sensor Circuit Malfunction
- DTC C1234/34 Yaw Rate Sensor Malfunction; DTC C1243/43 Acceleration Sensor Stuck Malfunction; DTC C1244/44 Open or Short in Deceleration Sensor Circuit; DTC C1245/45 Acceleration Sensor Output Malfunction; DTC C1279/79 Deceleration Sensor Output Voltage Malfunction (Test Mode DTC)
- DTC C1235/35 Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36 Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1238/38 Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39 Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1275/75 Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76 Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1277/77 Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78 Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
- DTC C1241/41 Low Battery Positive Voltage; DTC C1242/42 Open in IG1 / IG2 Power Source Circuit
- DTC C1246/46 Master Cylinder Pressure Sensor Malfunction; DTC C1281/81 Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC); DTC C1364/61 Wheel Cylinder Pressure Sensor Malfunction
- DTC C1247/47 Stroke Sensor Malfunction; DTC C1346/71 Stroke Sensor Zero Point Learning Malfunction (Test Mode DTC); DTC C1392/48 Stroke Sensor Zero Point Calibration Undone
- DTC C1249/49 Open in Stop Light Switch Circuit
- DTC C1252/52 Brake Booster Pump Motor on Time Abnormally Long; DTC C1253/53 Hydro Booster Pump Motor Relay Malfunction
- DTC C1256/57 Accumulator Low Pressure
- DTC C1259/58 HV System Regenerative Malfunction; DTC C1310/51 Malfunction in HV system
- DTC C1300 Skid Control ECU Malfunction
- DTC C1311/11 Open in Main Relay 1 Circuit; DTC C1312/12 Short in Main Relay 1 Circuit; DTC C1313/13 Open in Main Relay 2 Circuit; DTC C1314/14 Short in Main Relay 2 Circuit
- DTC C1315/31 SMC1 Changeover Solenoid Malfunction; DTC C1316/32 SMC2 Changeover Solenoid Malfunction; DTC C1352/21 Front Increasing Pressure Solenoid RH Malfunction; DTC C1353/23 Front Increasing Pressure Solenoid LH Malfunction; DTC C1354/25 Rear Increasing Pressure Solenoid RH Malfunction; DTC C1355/27 Rear Increasing Pressure Solenoid LH Malfunction; DTC C1356/22 Front Decreasing Pressure Solenoid RH Malfunction; DTC C1357/24 Front Decreasing Pressure Solenoid LH Malfunction; DTC C1358/26 Rear Decreasing Pressure Solenoid RH Malfunction; DTC C1359/28 Rear Decreasing Pressure Solenoid LH Malfunction
- DTC C1319/35 SCSS Changeover Solenoid Malfunction
- DTC C1341/62 Front Hydraulic System RH Malfunction; DTC C1342/63 Front Hydraulic System LH Malfunction; DTC C1343/64 Rear Hydraulic System RH Malfunction; DTC C1344/65 Rear Hydraulic System LH Malfunction
- DTC C1345/66 Linear Solenoid Valve Offset Learning Undone; DTC C1368/67 Linear Solenoid Valve Offset Malfunction
- DTC C1365/54 Accumulator Pressure Sensor Malfunction
- DTC C1377/43 Capacitor Malfunction
- DTC C1378/44 Capacitor Communication Malfunction
- DTC C1381/97 Yaw Rate and / or Acceleration Sensor Power Supply Voltage Malfunction; DTC C0371/71 Yaw Rate Sensor (Test Mode DTC)
- DTC C1391/69 Accumulator Leak Malfunction
- DTC U0073/94 Control Module Communication Bus OFF; DTC U0123/62 Lost Communication with Yaw Rate Sensor Module; DTC U0124/95 Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/63 Lost Communication with Steering Angle Sensor Module; DTC U0293/59 Communication Error from HV ECU
- ABS Warning Light Remains ON
- ABS Warning Light does not Come ON
- Brake Warning Light Remains ON
- Brake Warning Light does not Come ON
- Brake Control Warning Light Remains ON
- Brake Control Warning Light does not Come ON
- Slip Indicator Light Remains ON
- Slip Indicator Light does not Come ON
- Skid Control Buzzer Circuit
- TC and CG Terminal Circuit
- TS and CG Terminal Circuit
- Brake Actuator
- Front Speed Sensor
- SKID CONTROL SENSOR (for 2WD)
- BRAKE CONTROL REAR SPEED SENSOR (for 4WD)
- Yaw Rate Sensor
- Steering Sensor
- Skid Control Ecu
- Brake Control Power Supply
- Brake Pedal Stroke Sensor
- Abs Main Relay
- Abs Motor Relay