| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001AZ9D |
| Model Year Start: 2019 | Model: Avalon | Prod Date Range: [04/2018 - 08/2021] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): C1336; Zero Point Calibration of Deceleration Sensor undone; 2019 - 2021 MY Avalon [04/2018 - 08/2021] | ||
|
DTC |
C1336 |
Zero Point Calibration of Deceleration Sensor undone |
DESCRIPTION
The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via CAN communication.
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 a communication error with the yaw rate and acceleration sensor (airbag sensor assembly) is detected, DTCs U0123 (Lost Communication With Yaw Rate Sensor Module) and U0151 (Lost Communication With Restraints Control Module) are stored.
The DTCs are also stored when the calibration has not been completed.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1336 |
Zero Point Calibration of Deceleration Sensor undone |
Zero point calibration of acceleration sensor undone. |
|
CAUTION / NOTICE / HINT
NOTICE:
-
When replacing the skid control ECU (brake actuator assembly), perform system variant learning and acceleration sensor zero point calibration.
Click here
![2019 - 2021 MY Avalon [04/2018 - 08/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): CALIBRATION](/t3Portal/stylegraphics/info.gif)
-
After replacing or reinstalling the yaw rate and acceleration sensor (airbag sensor assembly), perform system variant learning and acceleration sensor zero point calibration.
Click here
HINT:
When U0123 and/or U0151 is output together with C1336, inspect and repair the trouble areas indicated by U0123 and/or U0151 first.
Click here
PROCEDURE
|
1. |
PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR |
(a) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Utility / Test Mode.
(b) Perform zero point calibration of the yaw rate and acceleration sensor.
Click here
Chassis > ABS/VSC/TRAC/EPB > Utility
|
Tester Display |
|---|
|
Test Mode |
|
|
2. |
PERFORM TEST MODE INSPECTION (SIGNAL CHECK) |
(a) Turn the engine switch off.
(b) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Utility / Signal Check.
(c) 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.
Click here
Chassis > ABS/VSC/TRAC/EPB > Utility
|
Tester Display |
|---|
|
Signal Check |
OK:
All Test Mode (Signal Check) inspection items change from incomplete to complete
| OK |
|
END |
|
|
3. |
CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION |
(a) Turn the engine switch off.
(b) Check that the yaw rate and acceleration sensor (airbag sensor assembly) has been installed properly.
Click here
OK:
The yaw rate and acceleration sensor (airbag sensor assembly) is tightened to the specified torque.
The yaw rate and acceleration sensor (airbag sensor assembly) is not installed in a tilted position.
| NG |
|
INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY
|
|
|
4. |
READ VALUE USING TECHSTREAM (ACCELERATION SENSOR) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Data List.
Chassis > ABS/VSC/TRAC/EPB > Data List
|
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 |
Chassis > ABS/VSC/TRAC/EPB > Data List
|
Tester Display |
|---|
|
Deceleration Sensor |
|
Deceleration Sensor2 |
(d) 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.
| OK |
|
REPLACE BRAKE ACTUATOR ASSEMBLY
|
| NG |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
|
|