| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001H3XH |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [02/2019 - 08/2020] |
| Title: LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): Automatic High Beam Switch Indicator does not Come ON; 2019 - 2020 MY RAV4 RAV4 HV [02/2019 - 08/2020] | ||
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Automatic High Beam Switch Indicator does not Come ON |
DESCRIPTION
When the automatic high beam system is on, the main body ECU (multiplex network body ECU) illuminates the auto high beam switch indicator.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following procedure.
- Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
PROCEDURE
|
1. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > Main Body > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Automatic High Beam Switch Light |
Auto high beam switch indicator light |
OFF or ON |
- |
Body Electrical > Main Body > Active Test
|
Tester Display |
|---|
|
Automatic High Beam Switch Light |
OK:
Auto high beam switch indicator light illuminates.
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
|
|
2. |
INSPECT AUTO HIGH BEAM SWITCH |
(a) Remove the auto high beam switch.
Click here
![2019 - 2024 MY RAV4 RAV4 HV [11/2018 - ]; LIGHTING (EXT): AUTOMATIC HIGH BEAM MAIN SWITCH: REMOVAL](/t3Portal/stylegraphics/info.gif)
(b) Inspect the auto high beam switch.
Click here
| NG |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (AUTO HIGH BEAM SWITCH - BATTERY) |
(a) Disconnect the auto high beam switch connector.
|
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK HARNESS AND CONNECTOR (AUTO HIGH BEAM SWITCH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Disconnect the G42 auto high beam switch connector.
(b) Disconnect the G45 main body ECU (multiplex network body ECU) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G42-4 (AZBI) - G45-21 (AHID) |
Always |
Below 1 Ω |
|
G42-4 (AZBI) or G45-21 (AHID) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|