| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001H41D |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [02/2019 - 12/2021] |
| Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (w/o Vacuum Brake Booster): Electric Parking Brake does not Operate; 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021] | ||
|
Electric Parking Brake does not Operate |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
- 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.
HINT:
The condition may be that the electric parking brake is operating normally but the meter parking brake indicator light is malfunctioning.
PROCEDURE
|
1. |
VEHICLE OPERATION CHECK |
(a) Turn the ignition switch to ON (READY) and move the shift lever to D. Then depress the brake pedal and pull the electric parking brake switch (integration control and panel assembly) to the lock side for 1 second. Check the parking brake indicator light condition.
(b) Release the brake pedal and check that the vehicle does not move.
(c) Depress the brake pedal and push the electric parking brake switch (integration control and panel assembly) to the release side for 1 second. Check the parking brake indicator light condition.
(d) Release the brake pedal and check that the vehicle moves.
|
Result |
Proceed to |
|---|---|
|
Lock and release control is normal; parking brake indicator light is off or is blinking |
A |
|
Lock and release control is malfunctioning; parking brake indicator light is illuminated or off depending on switch operation |
B |
|
Lock and release control is malfunctioning; parking brake indicator light is off or is blinking |
C |
| B |
|
INSPECT REAR BRAKE |
| C |
|
|
|
2. |
PERFORM ACTIVE TEST USING TECHSTREAM (PKB LIGHT) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON and the Techstream on.
(d) Enter the following menus: Chassis / Electric Parking Brake / Active Test.
(e) Check the condition of the parking brake indicator light by operating the Techstream.
Chassis > Electric Parking Brake > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
PKB Light |
Parking brake indicator light |
ON or OFF |
|
Chassis > Electric Parking Brake > Active Test
|
Tester Display |
|---|
|
PKB Light |
OK:
Indicator light turns on when operating the Techstream.
| OK |
|
REPLACE PARKING BRAKE ECU ASSEMBLY
|
![2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; PARKING BRAKE: ELECTRIC PARKING BRAKE ECU: REMOVAL](/t3Portal/stylegraphics/info.gif)
| NG |
|
|
3. |
CHECK HARNESS AND CONNECTOR (BECU CIRCUIT) |
(a) Turn the ignition switch off.
|
(b) Disconnect the parking brake ECU assembly connector. |
|
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M35-3 (BECU) - Body ground |
Always |
11 to 14 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK HARNESS AND CONNECTOR (AUXILIARY BATTERY - PARKING BRAKE ECU ASSEMBLY) |
(a) Turn the ignition switch off.
|
(b) Disconnect the parking brake ECU assembly connector. |
|
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
M35-5 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
| OK |
|
REPLACE PARKING BRAKE ECU ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|