BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS VEHICLE STABILITY CONTROL SYSTEM C1436 Yaw Rate Sensor Malfunction
DESCRIPTION
This DTC is stored when the skid control ECU (brake actuator assembly) detects improper installation of the yaw rate and acceleration sensor (airbag ECU assembly) or an abnormality in the difference between the yaw rate sensor value and the control value estimated based on the acceleration sensor, steering angle sensor and speed sensor signals.
The airbag ECU assembly has a built-in yaw rate and acceleration sensor and detects the vehicle's condition.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1436 | Yaw Rate Sensor Malfunction | Either of the following is detected:
1.
With the vehicle stationary, the yaw rate sensor output value is not 0°/s. 2.
Abnormal comparison value. |
·
Sensor installation ·
Yaw rate sensor (airbag ECU assembly) |
CAUTION / NOTICE / HINT
- NOTICE:
- ·
When replacing the yaw rate and acceleration sensor (airbag ECU assembly), perform zero point calibration.
Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>VEHICLE STABILITY CONTROL SYSTEM>CALIBRATION
·When replacing the yaw rate and acceleration sensor (airbag ECU assembly), perform deceleration sensor zero point calibration and CVT oil pressure calibration.
Click hereDrivetrain>K313 CVT>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION
PROCEDURE
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Select the Data List using the GTS.
- Chassis > ABS/VSC/TRC > Data List
-
Tester Display Measurement Item Range Normal Condition Diagnostic Note Yaw Rate Sensor Yaw rate sensor Min.: -128°/s, Max.: 127°/s Vehicle stopped: 0°/s
Turning right: -128 to 0°/s
Turning left: 0 to 127°/s-
- Chassis > ABS/VSC/TRC > Data List
-
Tester Display Yaw Rate Sensor - 50003 105 24
Check the yaw rate and acceleration sensor (airbag ECU assembly) output value displayed on the GTS.
- Result:
Result Proceed to NG (The yaw rate and acceleration sensor (airbag ECU assembly) output value is 0°/s when the vehicle is stationary, but the value fluctuates when turning.) A NG (The yaw rate and acceleration sensor (airbag ECU assembly) output value is not 0°/s when the vehicle is stationary.) B OK C
- NOTICE:
-
Check the yaw rate and acceleration sensor signal after replacement.
-
Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>VEHICLE STABILITY CONTROL SYSTEM>TEST MODE PROCEDURE
- HINT:
-
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.
A
B
C
Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING
Turn the engine switch off.
Check that the yaw rate and acceleration sensor (airbag ECU assembly) has been installed properly.
Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>INSTALLATION
- OK:
The airbag ECU assembly is tightened to the specified torque.
The airbag ECU assembly is not installed in a tilted position.
- NOTICE:
-
Check the yaw rate and acceleration sensor signal after replacement.
-
Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>VEHICLE STABILITY CONTROL SYSTEM>TEST MODE PROCEDURE
- HINT:
-
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.
- Result:
Proceed to OK NG
OK
NG
Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>INSTALLATION