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 |
Lost Communication with Front Airbag Sensor LH (B1617/84,B1618/84)
DESCRIPTION
The front airbag sensor LH circuit consists of the center airbag sensor and front
airbag sensor LH.
The front airbag sensor LH detects impacts to the vehicle and sends signals to
the center airbag sensor to determine if the airbag should be d ...
Radio Antenna Cord
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-)
battery termin ...