Toyota 4Runner: Vehicle Stability Control System(for Hydraulic Brake Booster)
Toyota 4Runner Service Manual / Brake / Brake Control / Dynamic Control Systems / Vehicle Stability Control System(for Hydraulic Brake Booster)
- Precaution
- Parts Location
- System Diagram
- System Description
- Check For Intermittent Problems
- How To Proceed With Troubleshooting
- Calibration
- Test Mode Procedure
- Problem Symptoms Table
- Diagnosis System
- Terminals Of Ecu
- Dtc Check / Clear
- Freeze Frame Data
- Data List / Active Test
- Fail-safe Chart
- ABS Control System Malfunction (43)
- SFR Solenoid Circuit (C0226,C0236,C0246,C0256,C1225-C1228)
- Open in ABS Solenoid Relay Circuit (C0278,C0279)
- ECM Communication Circuit Malfunction (C1203)
- ECU Initial Setting Incomplete (C120A)
- Zero Point Calibration of Yaw Rate Sensor Undone (C1210,C1336)
- Acceleration Sensor Stuck Malfunction (C1232,C1243,C1245,C1279)
- Low Power Supply Voltage Malfunction (C1241)
- Open Circuit in IG1/IG2 Power Source Circuit (C1242)
- Open in Pump Motor Circuit (C1251)
- Brake Booster Pump Motor on Time Abnormally Long (C1252)
- Pump Motor Relay (C1253)
- Pressure Sensor or Switch (C1254)
- Accumulator Low Pressure (C1256)
- Power Supply Drive Circuit (C1257)
- Open Circuit in Transfer 4WD Position Switch Circuit (C1258,C1340)
- Transfer L4 Position Switch Circuit (C1268)
- Center Differential Lock Position Switch (C1282)
- Steering Angle Sensor Zero Point Malfunction (C1290)
- Diameter of the Tire is not Uniform (C1337)
- Downhill Assist Control Switch Malfunction (Test Mode DTC) (C1379)
- Stop Light Control Relay Malfunction (C1380)
- Acceleration Sensor Power Supply Voltage Malfunction (C1381)
- Front Speed Sensor RH Malfunction (C1401,C1271,C1272,C1402)
- Rear Speed Sensor RH Malfunction (C1403,C1273,C1274,C1404)
- Open or Short in Front Speed Sensor RH Circuit (C1405,C1406)
- Open or Short in Rear Speed Sensor RH Circuit (C1407,C1408)
- Front Speed Sensor RH Performance (C1409,C1410)
- Rear Speed Sensor RH Performance (C1411,C1412)
- Front Speed Sensor RH Output Malfunction (C1413,C1275,C1276,C1414)
- High Power Supply Voltage Malfunction (C1417)
- Acceleration Sensor Internal Circuit (C1419,C1435)
- Acceleration Sensor Malfunction (C1420)
- Open or Short in Master Cylinder Pressure Sensor (C1421,C1281,C1423,C1424)
- Master Cylinder Pressure Sensor Zero Point High Malfunction (C1422)
- Open in Stop Light Switch Circuit (C1425)
- Steering Angle Sensor Power Source Voltage Malfunction (C1432)
- Steering Angle Sensor Internal Circuit (C1433)
- Steering Angle Sensor Output Malfunction (C1434)
- Yaw Rate Sensor Malfunction (C1436)
- Lost Communication with ECM (C1437)
- Steering Angle Sensor Initialization Incomplete (C1439,C1445)
- Steering Angle Sensor Unusual Bank Angle Detected (C1440)
- Invalid Data Received from Deceleration Sensor (C1442,C1443)
- Accumulator Low Pressure (C1452)
- Reservoir Level Switch Disconnected (C1453,C1454)
- Control Module Communication Bus OFF (U0073,U0100,U0114,U0123,U0124,U0126)
- ABS Warning Light Remains ON
- ABS Warning Light does not Come ON
- Crawl Indicator Light Remains ON
- Crawl Indicator Light does not Come ON
- Multi-terrain Select Indicator Light Remains ON
- Multi-terrain Select Indicator Light does not Come ON
- Brake Warning Light does not Come ON
- Brake Warning Light Remains ON
- TRAC OFF Indicator Light Remains ON
- TRAC OFF Indicator Light does not Come ON
- VSC OFF Indicator Light does not Come ON
- VSC OFF Indicator Light Remains ON
- Slip Indicator Light does not Come ON
- Slip Indicator Light Remains ON
- Downhill Assist Control Indicator Light Remains ON
- Downhill Assist Control Indicator Light does not Come ON
- AUTO LSD Indicator Light Remains ON
- A-TRAC Indicator Light Remains ON
- AUTO LSD Indicator Light does not Come ON
- A-TRAC Indicator Light does not Come ON
- TC and CG Terminal Circuit
- TS and CG Terminal Circuit
Traction Off Switch
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE DRIVE MONITOR SWITCH
2. REMOVE MAP LIGHT ASSEMBLY
(a) Remove the screws.
...
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSION
HINT:
The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are ...
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Open in Stop Light Switch Circuit (C1425)
DESCRIPTION
The skid control ECU receives the stop light switch assembly signal and detects
the brake pedal operation status.
The skid control ECU has an open detection circuit, which stores this DTC if
it detects an open in the stop light input line of ...
Communication Malfunction No. 1 (B2797)
DESCRIPTION
This DTC is stored when a communication error occurs between the transponder
key amplifier and transponder key ECU assembly. Some possible reasons for the communication
error are: 1) 2 or more ignition keys are positioned too close together, o ...
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