| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001S0PC |
| Model Year Start: 2021 | Model: RAV4 | Prod Date Range: [08/2020 - 12/2021] |
| Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (w/o Vacuum Brake Booster): Electric Parking Brake System AUTO Function Circuit; 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021] | ||
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Electric Parking Brake System AUTO Function Circuit |
DESCRIPTION
The parking brake ECU assembly receives shift position information from the hybrid vehicle control ECU assembly via CAN communication. Also, the parking brake ECU assembly receives wheel speed information and stop light switch information from the skid control ECU (brake booster with master cylinder assembly).
The electric parking brake system AUTO control (shift-linked) function automatically releases the parking brake when the following conditions are met: 1) ignition switch ON, 2) brake pedal depressed, and 3) shift lever moved out of P. Also, when the shift lever is moved to P with the vehicle in this condition, the function automatically locks the parking brake.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- The electric parking brake may still operate up to 20 seconds after the ignition switch is turned off. Before disconnecting connectors or fuses, turn the ignition switch off and wait 20 seconds or more.
- When replacing the parking brake ECU assembly, operate the electric parking brake switch (integration control and panel assembly) from the lock side to the release side, as the parking brake indicator light blinks when the ignition switch is first turned to ON.
PROCEDURE
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1. |
CHECK DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster)) |
(a) Check the electronically controlled brake system (w/o Vacuum Brake Booster) DTCs and check if speed sensor system or stop light switch system DTCs are stored.
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): DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
Chassis > ABS/VSC/TRAC > Trouble Codes
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Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
|
DTC is output |
B |
| B |
|
GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster) |
|
|
2. |
CHECK DTC (HYBRID CONTROL SYSTEM) |
(a) Check the DTCs.
for NICKEL METAL HYDRIDE BATTERY: Click here
for LITHIUM-ION BATTERY: Click here
Powertrain > Hybrid Control > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
|
DTC is output |
B |
| A |
|
| B |
|
GO TO HYBRID CONTROL SYSTEM for NICKEL METAL HYDRIDE BATTERY: Click here
for LITHIUM-ION BATTERY: Click here
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