DESCRIPTION
The skid control ECU receives signals from the yaw rate and acceleration sensor via the CAN communication system.
The yaw rate sensor has a built-in acceleration sensor and detects the vehicle's condition using 2 circuits (GL1, GL2). If there is trouble in the bus lines between the yaw rate and acceleration sensor and the CAN communication system, DTCs U0123 (yaw rate sensor communication trouble) and U0124 (acceleration sensor communication trouble) are stored.
The DTCs are also stored when the calibration has not been completed.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1210 |
Zero point calibration of the yaw rate sensor is incomplete. |
|
C1336 |
Zero point calibration of the acceleration sensor is incomplete. |
WIRING DIAGRAM
Refer to DTCs C1232, C1243 and C1245 (See page
).
CAUTION / NOTICE / HINT
NOTICE:
When replacing the master cylinder solenoid, perform calibration (See page
).
PROCEDURE
1. |
CHECK DTC (CAN COMMUNICATION SYSTEM) |
(a) Check for DTCs (See page ).
Result |
Proceed to |
---|---|
CAN DTC is not output |
A |
CAN DTC is output |
B |
B | ![]() |
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
2. |
PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR |
(a) Perform zero point calibration of the yaw rate and acceleration sensor (See
page ).
|
3. |
PERFORM TEST MODE (SIGNAL CHECK) |
(a) Turn the ignition switch off.
(b) Perform the signal check in the Test Mode Procedure (See page
).
OK:
All test mode DTCs are cleared.
OK | ![]() |
END |
|
4. |
CHECK YAW RATE AND ACCELERATION SENSOR INSTALLATION |
(a) Turn the ignition switch off.
(b) Check that the yaw rate and acceleration sensor has been installed properly
(See page ).
OK:
The sensor is tightened to the specified torque.
The sensor is not installed at an angle.
NG | ![]() |
INSTALL YAW RATE AND ACCELERATION SENSOR CORRECTLY |
|
5. |
READ VALUE USING TECHSTREAM (YAW RATE AND ACCELERATION SENSOR) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.
ABS/VSC/TRAC
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Deceleration Sensor |
Acceleration sensor/ Min.: -18.183 m/s2, Max.: 18.183 m/s2 |
- |
Changes continuously during acceleration/deceleration. |
Deceleration Sensor2 |
Acceleration sensor 2/ Min.: -18.183 m/s2, Max.: 18.183 m/s2 |
- |
Changes continuously during acceleration/deceleration. |
Yaw Rate Sensor |
Yaw rate sensor/ Min.: -128°/s, Max.: 127°/s |
Vehicle stationary: 0°/s Right turn: -128 to 0°/s Left turn: 0 to 127°/s |
- |
Yaw Rate Sensor2 |
Yaw rate sensor 2/ Min.: -128°/s, Max.: 127°/s |
Vehicle stationary: 0°/s Right turn: -128 to 0°/s Left turn: 0 to 127°/s |
- |
(f) Check that the yaw rate and acceleration sensor output value is displayed on the Techstream.
OK:
The yaw rate and acceleration sensor output value is normal.
NOTICE:
Check the yaw rate and acceleration sensor signal after replacement (See page
).
OK | ![]() |
REPLACE MASTER CYLINDER SOLENOID |
NG | ![]() |
REPLACE YAW RATE AND ACCELERATION SENSOR |
Detachable pole antenna
The antenna can be removed.
Removing the antenna
Place the included wrench around the antenna.
When not in use, the wrench is stored in glove box.
Loosen the antenna with the wrench and remove it.
Installing the antenna
Tighten the antenna by one h ...
Front Power Seat does not Operate with Front Power Seat Switch
DESCRIPTION
When a signal is input into the front power seat switch LH (position control
ECU), the ECU manages the signals received from the front power seat switch LH and
operates each motor. When 2 or more signals are input, the motors only operate when ...