Toyota Tacoma 2015-2018 Service Manual: Brake Control / Dynamic Control Systems
Toyota Tacoma 2015-2018 Service Manual / Brake Control / Dynamic Control Systems
- Brake Actuator
- Crawl Switch
- Front Speed Sensor
- Multi-terrain Select Switch
- Rear Speed Sensor
- Steering Angle Sensor
- Traction Off Switch
- Vehicle Stability Control System(for Hydraulic Brake Booster)
- Parts Location
- Precaution
- How To Proceed With Troubleshooting
- System Description
- System Diagram
- Check For Intermittent Problems
- Calibration
- Problem Symptoms Table
- Test Mode Procedure
- Terminals Of Ecu
- Diagnosis System
- Dtc Check / Clear
- Fail-safe Chart
- Freeze Frame Data
- Data List / Active Test
- Diagnostic Trouble Code Chart
- Vehicle Control History
- ABS Control System Malfunction (43)
- Control Module Communication Bus OFF (U0073,U0100,U0114,U0123,U0124,U0126)
- Zero Point Calibration of Yaw Rate Sensor Undone (C1210,C1336)
- SM Solenoid Circuit (C1225-C1228,C1468,C1469,C146A,C146B)
- 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)
- Transfer L4 Position Switch Circuit (C1268)
- Low Output Signal of Front Speed Sensor RH (Test Mode DTC) (C1271,C1272,C1401,C1402)
- Low Output Signal of Rear Speed Sensor RH (Test Mode DTC) (C1273,C1274,C1403,C1404)
- Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC) (C1275,...,C1414)
- Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC) (C1277,...,C1416)
- Open in ABS Solenoid Relay Circuit (C146E,C146F)
- ECM Communication Circuit Malfunction (C1203)
- 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)
- Acceleration Sensor Power Supply Voltage Malfunction (C1381)
- 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)
- High Power Supply Voltage Malfunction (C1417)
- Acceleration Sensor Internal Circuit (C1419,C1435)
- Acceleration Sensor Malfunction (C1420)
- 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)
- Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC) (C1281,...,C1458)
- Master Cylinder Pressure Sensor Zero Point High Malfunction (C1422,C1456)
- Reservoir Level Switch Disconnected (C1453,C1454)
- ABS Warning Light does not Come ON
- ABS Warning Light Remains ON
- Crawl Indicator Light does not Come ON
- Crawl Indicator Light Remains ON
- Multi-terrain Select Indicator Light does not Come ON
- Multi-terrain Select Indicator Light Remains ON
- Brake Warning Light does not Come ON
- Brake Warning Light Remains ON
- TRAC OFF Indicator Light does not Come ON
- TRAC OFF Indicator Light Remains ON
- VSC OFF Indicator Light Remains ON
- Slip Indicator Light Remains ON
- VSC OFF Indicator Light does not Come ON
- AUTO LSD Indicator Light does not Come ON
- AUTO LSD Indicator Light Remains ON
- Slip Indicator Light does not Come ON
- A-TRAC Indicator Light does not Come ON
- A-TRAC Indicator Light Remains ON
- VSC Buzzer Circuit
- Vehicle Stability Control System(for Vacuum Brake Booster)
- Parts Location
- Precaution
- System Description
- System Diagram
- Check For Intermittent Problems
- How To Proceed With Troubleshooting
- Calibration
- Test Mode Procedure
- Problem Symptoms Table
- Diagnosis System
- Terminals Of Ecu
- Dtc Check / Clear
- Fail-safe Chart
- Freeze Frame Data
- Data List / Active Test
- Diagnostic Trouble Code Chart
- Low Power Supply Voltage Malfunction (C1241)
- Vehicle Control History
- Transfer L4 Position Switch Circuit (C1268)
- Steering Angle Sensor Zero Point Malfunction (C1290)
- Diameter of the Tire is not Uniform (C1337)
- Stop Light Control Relay Malfunction (C1380)
- Acceleration Sensor Power Supply Voltage Malfunction (C1381)
- Front Speed Sensor RH Malfunction (C1401,C1402)
- Rear Speed Sensor RH Malfunction (C1403,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 Output Malfunction (C1413,C1414)
- Rear Speed Sensor RH Output Malfunction (C1415,C1416)
- High Power Supply Voltage Malfunction (C1417)
- Acceleration Sensor Internal Circuit (C1419,C1435)
- Open or Short in Master Cylinder Pressure Sensor (C1421,C1423,C1424,C142A,C1449)
- Master Cylinder Pressure Sensor Zero Point High Malfunction (C1422)
- Open in Stop Light Switch Circuit (C1425)
- Stop Light Switch OFF Stuck Malfunction (C1426)
- Motor Malfunction (C1427)
- Motor Power Supply Voltage Circuit (C142B-C146D)
- Motor Circuit Malfunction (C1428)
- 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)
- Unusual Bank Angle Detected (C1440)
- Open in ABS Solenoid Relay Circuit (C146E,C146F)
- Invalid Data Received from Deceleration Sensor (C1442,C1443)
- Acceleration Sensor Stuck Malfunction (C1232,C1243,C1245)
- Control Module Communication Bus OFF (U0073,U0100,U0124,U0126)
- IG Supply Voltage Low (C120B)
- Zero Point Calibration of Yaw Rate Sensor Undone (C1210,C1336)
- SM Solenoid Circuit (C1225,C1468,C1469,C146A,C146B)
- Engine Control System Malfunction (C1201)
- ECM Communication Circuit Malfunction (C1203)
- ABS Warning Light does not Come ON
- ABS Warning Light Remains ON
- Brake Warning Light Remains ON
- Brake Warning Light does not Come ON
- Slip Indicator Light Remains ON
- AUTO LSD Indicator Light does not Come ON
- AUTO LSD Indicator Light Remains ON
- Slip Indicator Light does not Come ON
- TC and CG Terminal Circuit
- VSC Buzzer Circuit
- TS and CG Terminal Circuit
- VSC OFF Switch Circuit
- Vsc Off Switch
Vacuum Warning Switch
Components
COMPONENTS
ILLUSTRATION
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT BRAKE FLUID LEVEL IN RESERVOIR
2. INSPECT BRAKE BOOSTER ASSEMBLY
3. INSPECT VACUUM ...
Brake Actuator
...
Other materials:
Inspection
INSPECTION
PROCEDURE
1. INSPECT OIL CLEARANCE
(a) Using a micrometer and caliper gauge, measure the oil seal clearance.
Standard clearance:
0.021 to 0.043 mm (0.0008 to 0.0017 in.)
Maximum clearance:
0.07 mm (0.0028 in.)
If it is greater than the maximum, replace the vane pump assembly.
...
IG Supply Voltage Low (C120B)
DESCRIPTION
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C120B
IG Supply Voltage Low
Master cylinder pressure sensor power supply voltage decrease occurs
or history of voltage decrease exists, and ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL HAZARD WARNING SIGNAL SWITCH ASSEMBLY (AIR CONDITIONING CONTROL ASSEMBLY)
(for Automatic Air Conditioning System)
(a) Connect the connectors.
(b) Engage the 8 clips to hazard warning signal switch assembly (air conditioning
control assembly).
2. INSTALL HAZ ...
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