| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001QINW |
| Model Year Start: 2021 | Model: RAV4 | Prod Date Range: [08/2020 - 12/2021] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): ABS Operates Before Necessary When Braking; 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021] | ||
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ABS Operates Before Necessary When Braking |
DESCRIPTION
Troubleshooting for when ABS operates too soon due to a noisy signal from the speed sensor, a difference in output, etc.
PROCEDURE
|
1. |
PERFORM TEST MODE INSPECTION (SIGNAL CHECK) (SPEED SENSOR CIRCUIT) |
(a) Turn the ignition switch off.
(b) Perform the sensor check in Test Mode Procedure.
Click here
![2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): TEST MODE PROCEDURE](/t3Portal/stylegraphics/info.gif)
Chassis > ABS/VSC/TRAC > Utility
|
Tester Display |
|---|
|
Signal Check |
OK:
Speed sensor Test Mode DTCs are cleared.
|
Result |
Proceed to |
|---|---|
|
OK (for Front) |
A |
|
OK (for Rear) |
B |
|
NG |
C |
NOTICE:
- When cleaning the front speed sensor, make sure to clean the installation hole before installation.
- Do not use parts cleaner when cleaning the front speed sensor rotor.
HINT:
The rear speed sensor and rear speed sensor rotor are incorporated into the rear axle hub and bearing assembly.
If the rear speed sensor and rear speed sensor rotor need to be replaced, replace the rear axle hub and bearing assembly.
| A |
|
CLEAN FRONT SPEED SENSOR AND FRONT SPEED SENSOR ROTOR |
| B |
|
CLEAN REAR SPEED SENSOR AND REAR SPEED SENSOR ROTOR |
| C |
|
INSPECT AND REPAIR MALFUNCTIONING SPEED SENSOR CIRCUIT |
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