| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001ANL9 |
| Model Year Start: 2019 | Model: Avalon HV | Prod Date Range: [04/2018 - ] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): C1420; Malfunction in Deceleration Sensor; 2019 - 2022 MY Avalon HV [04/2018 - ] | ||
|
DTC |
C1420 |
Malfunction in Deceleration Sensor |
DESCRIPTION
The airbag ECU assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition using 2 circuits (GL1, GL2).
The skid control ECU (brake booster with master cylinder assembly) receives signals from the yaw rate and acceleration sensor (airbag ECU assembly) via CAN communication.
|
DTC No. |
Detection Item |
INF Code |
DTC Detection Condition |
Trouble Area |
MIL |
Note |
|---|---|---|---|---|---|---|
|
C1420 |
Malfunction in Deceleration Sensor |
571 |
After the difference between GL1 and GL2 is 0.6 G or more with the vehicle stopped, the difference between GL1 and GL2 does not drop below 0.4 G or more for 60 seconds or more. |
|
Does not come on |
ABS DTC |
CAUTION / NOTICE / HINT
NOTICE:
After replacing or reinstalling the yaw rate and acceleration sensor (airbag ECU assembly), perform yaw rate and acceleration sensor zero point calibration after clearing previously calibrated data.
Click here
![2019 - 2021 MY Avalon HV [04/2018 - 08/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): CALIBRATION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CHECK AIRBAG ECU ASSEMBLY INSTALLATION |
(a) Check that the yaw rate and acceleration sensor (airbag ECU assembly) has been installed properly.
Click here
OK:
The yaw rate and acceleration sensor (airbag ECU assembly) is tightened to the specified torque.
The yaw rate and acceleration sensor (airbag ECU assembly) is not tilted.
| OK |
|
REPLACE AIRBAG ECU ASSEMBLY
|
| NG |
|
INSTALL AIRBAG ECU ASSEMBLY CORRECTLY
|
|
|