| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001EV4F |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - ] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Vacuum Brake Booster): Downhill Assist Control Indicator Light Remains ON; 2019 - 2024 MY RAV4 RAV4 HV [11/2018 - ] | ||
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Downhill Assist Control Indicator Light Remains ON |
DESCRIPTION
When the downhill assist control switch is turned on, the downhill assist control function is available and the downhill assist control indicator light illuminates.
WIRING DIAGRAM
Refer to Downhill Assist Control Indicator Light does not Come ON.
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![2019 - 2022 MY RAV4 RAV4 HV [11/2018 - 10/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Vacuum Brake Booster): Downhill Assist Control Indicator Light does not Come ON+](/t3Portal/stylegraphics/info.gif)
CAUTION / NOTICE / HINT
NOTICE:
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.
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PROCEDURE
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1. |
CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - INTEGRATION CONTROL AND PANEL ASSEMBLY) |
(a) Disconnect the A39 skid control ECU (brake actuator assembly) connector.
(b) Disconnect the G32 downhill assist control switch (integration control and panel assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A39-8 (HDCS) - G32-19 (B) |
Always |
Below 1 Ω |
|
A39-8 (HDCS) or G32-19 (B) - Body ground |
Always |
10 kΩ or higher |
|
G32-16 (E) - Body ground |
Always |
Below 1 Ω |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
2. |
INSPECT COMBINATION METER ASSEMBLY |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Enter the following menus: Body Electrical / Combination Meter / Active Test.
(d) Perform the Active Test of the combination meter assembly using the Techstream.
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Body Electrical > Combination Meter > Active Test
|
Tester Display |
|---|
|
Downhill Assist Control Indicator |
(e) Check the combination meter assembly.
OK:
The downhill assist control light turns on or off in accordance with the Techstream operation.
| OK |
|
REPLACE BRAKE ACTUATOR ASSEMBLY
|
| NG |
|
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