Lexus NX: Electronically Controlled Brake System
Lexus NX Service Manual / Brake / Brake Control / Dynamic Control Systems / 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
- Master Reservoir Level Malfunction (C1202)
- ECM Communication Circuit (C1203)
- Zero Point Calibration of Yaw Rate Sensor undone (C1210,C1336)
- SLA Linear Solenoid (C1211,C1212,C1225-C1228,C1352,C1353,C1356,C1357)
- Hydraulic Control System Malfunction (C1214)
- Steering Angle Sensor Circuit (C1231)
- Yaw Rate Sensor (C1234,C1243-C1245,C1279)
- Foreign Object is Attached on Tip of Front Speed Sensor RH (C1235,C1236,C1238,C1239,C1275-C1278)
- Low or High Power Supply Voltage (C1241,C1242)
- Master Cylinder Pressure Sensor (C1246,C1281,C1364)
- Stroke Sensor (C1247,C1346,C1392)
- Open Circuit in Stop Light Switch Circuit (C1249)
- Brake Booster Pump Motor on Time Abnormally Long (C1252,C1253)
- Accumulator Low Pressure (C1256)
- Power Supply Drive Circuit (C1257)
- HV Control System Regenerative Malfunction (C1259,C1310)
- Low Output Signal of Front Speed Sensor RH (C1271,C1272,C1464,C1465)
- Low Output Signal of Rear Speed Sensor RH (C1273,C1274,C1466,C1467)
- Abnormal Zero Point of Steering Angle Sensor (C1290)
- Skid Control ECU Malfunction (C1300)
- Open Circuit in Main Relay 1 (C1311,C1312)
- Linear Solenoid Valve Offset Learning undone (C1345,C1368)
- Different Diameter Tire Malfunction (C1348)
- Accumulator Pressure Sensor (C1365)
- Stop Light Relay Malfunction (C1380)
- Abnormal Power Supply Voltage in Yaw Rate and/or Deceleration Sensor (C1381)
- Abnormal Leak in Accumulator (C1391)
- EPB System Malfunction (C13AF)
- Steering Angle Sensor Initialization Incomplete (C1439,C1445)
- Steering Angle Sensor Unusual Bank Angle Detected (C1440)
- Invalid Data Received from Deceleration Sensor (C1442,C1443)
- Motor Drive Permission Malfunction (C1451)
- Control Module Communication Bus OFF (U0073,U0120,U0123,U0124,U0126,U0128,U0293)
- 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
- Brake Hold Standby Indicator Light Circuit
- Slip Indicator Light Remains ON
- Slip Indicator Light does not Come ON
- VSC OFF Switch Circuit
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Precaution
PRECAUTION TROUBLESHOOTING PRECAUTIONS (a) When there is a malfunction with terminal contact points or part installation problems, removal and installation of the suspected problem parts may return th
Parts Location
PARTS LOCATION ILLUSTRATION *A w/o AVS - - *1 FRONT AXLE HUB SUB-ASSEMBLY RH - FRONT SPEED SENSOR ROTOR RH *2 FRONT SPEED SENSOR RH *3 FRONT AXLE HUB SUB-ASSEMBLY LH - FRONT
System Diagram
SYSTEM DIAGRAM Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method Skid control ECU (Brake booster with master cylinder assembly) Power steering ECU assembly
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Customize Parameters
CUSTOMIZE PARAMETERS CUSTOMIZE SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function) HINT: The following items can be customized. NOTICE:
When the customer requests a change in a function, first make sure that the function can be customized.
Record the current settings before customiz
DC / DC Converter Status Circuit High Input (P0A10-592)
DESCRIPTION Refer to the description for DTC P0A09-591. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P0A10-592 DC / DC Converter Status Circuit High Input Short to +B in the DC/DC converter VLO signal line (1 trip detection logic)
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