- Sensor installation
- Yaw rate sensor (airbag sensor assembly)
- Skid control ECU (brake actuator assembly)
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018KE9 |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C1210,C1336; Zero Point Calibration of Yaw Rate Sensor Undone; 2018 - 2020 MY Sienna [11/2017 - ] | ||
|
DTC |
C1210 |
Zero Point Calibration of Yaw Rate Sensor Undone |
|
DTC |
C1336 |
Zero Point Calibration of Acceleration Sensor Undone |
DESCRIPTION
The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via the CAN communication system.
The airbag sensor assembly has a built-in yaw rate and 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 (airbag sensor assembly) and the CAN communication system, the DTC U0124 (Lost Communication with Lateral Acceleration Sensor Module) is output.
The DTCs are also output when the calibration has not been completed.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C1210 |
Zero point calibration of yaw rate sensor undone. |
|
|
C1336 |
Zero point calibration of acceleration sensor undone. |
|
CAUTION / NOTICE / HINT
NOTICE:
-
When replacing the skid control ECU (brake actuator assembly), perform zero point calibration and store system information (See page
![2018 - 2020 MY Sienna [11/2017 - ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: CALIBRATION](/t3Portal/stylegraphics/info.gif)
).
-
When replacing the yaw rate and acceleration sensor (airbag sensor assembly), perform zero point calibration and store system information (See page
).
HINT:
When U0124 is output along with C1210 and/or C1336, inspect and repair trouble areas indicated by U0124 first (See page
).
PROCEDURE
|
1. |
PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR |
(a) Perform zero point calibration of the yaw rate and acceleration sensor (See page
).
|
|
2. |
PERFORM TEST MODE (SIGNAL CHECK) |
(a) Turn the ignition switch off.
(b) Using the Techstream, perform a Test Mode (signal check) inspection sensor check and check that all Test Mode (signal check) inspection items change from incomplete to complete (See page
).
OK:
All Test Mode (signal check) inspection items change from incomplete to complete
| OK |
|
END |
|
|
3. |
CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION |
(a) Turn the ignition switch off.
(b) Check that the yaw rate and acceleration sensor (airbag sensor assembly) has been installed properly (See page
).
OK:
The sensor should be tightened to the specified torque.
The sensor should not be installed in a tilted position.
| NG |
|
|
|
4. |
READ VALUE USING TECHSTREAM (YAW RATE AND ACCELERATION SENSOR) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Select the Data List using the Techstream (See page
).
ABS/VSC/TRAC
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Deceleration Sensor |
Acceleration sensor reading / Min.: -18.525 m/s2, Max.: 18.387 m/s2 |
- |
During deceleration/acceleration: Changes continuously |
|
Deceleration Sensor2 |
Acceleration sensor 2 reading / Min.: -18.525 m/s2, Max.: 18.387 m/s2 |
- |
During deceleration/acceleration: Changes continuously |
|
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 |
- |
(e) Check the yaw rate and acceleration sensor (airbag sensor assembly) output value displayed on the Techstream.
OK:
The yaw rate and acceleration sensor (airbag sensor assembly) output value is normal.
NOTICE:
Check the yaw rate and acceleration sensor signal after replacement (See page
).
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 (See page
).
| OK |
|
| NG |
|
|
|