| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001HG98 |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [02/2019 - 12/2021] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): C1442,C1443; Invalid Data Received from Deceleration Sensor; 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021] | ||
|
DTC |
C1442 |
Invalid Data Received from Deceleration Sensor |
|
DTC |
C1443 |
Invalid Data Received from Yaw Rate Sensor |
DESCRIPTION
The skid control ECU (brake booster with master cylinder assembly) receives signals from the yaw rate and acceleration sensor (airbag ECU assembly) via the CAN communication system.
The airbag ECU assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition.
|
DTC No. |
Detection Item |
INF Code |
DTC Detection Condition |
Trouble Area |
Note |
|---|---|---|---|---|---|
|
C1442 |
Invalid Data Received from Deceleration Sensor |
572 |
With terminal IG1 voltage between 9.5 V higher than, an invalid data signal is received from the acceleration sensor for 10 seconds or more. |
Acceleration sensor (Airbag ECU assembly) |
- |
|
C1443 |
Invalid Data Received from Yaw Rate Sensor |
715 |
With terminal IG1 voltage between 9.5 V higher than, an invalid data signal is received from the yaw rate sensor for 10 seconds or more. |
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 here
![2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): UTILITY](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CHECK DTC |
(a) Clear the DTCs.
Click here
Chassis > ABS/VSC/TRAC > Clear DTCs
(b) Turn the ignition switch off.
(c) Check if the same DTC is output.
Click here
Chassis > ABS/VSC/TRAC > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs C1442 and C1443 are not output. |
A |
|
DTCs C1442 and/or C1443 are output. |
B |
| A |
|
| B |
|
REPLACE AIRBAG ECU ASSEMBLY
|
|
|