| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001EPCP |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - 12/2021] |
| Title: LIGHTING (EXT): LIGHTING SYSTEM (w/o Headlight ECU): Headlight Dimmer Switch Circuit; 2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021] | ||
|
Headlight Dimmer Switch Circuit |
DESCRIPTION
The steering sensor receives the following switch information:
- Light control switch in DRL OFF*1, OFF*2, TAIL, HEAD, AUTO*3 or DRL*4 position
- Dimmer switch in High, Low or Flash (pass) position
-
Fog light switch in Fr or OFF position*5
- *1: w/ DRL OFF Switch
- *2: w/ Light Control Switch OFF Position
- *3: w/ Automatic Light Control System
- *4: w/ DRL Switch
- *5: w/ Front Fog Light
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
w/ Smart Key System:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / Steering Angle Sensor / Data List.
(e) Read the Data List according to the display on the Techstream.
Chassis > Steering Angle Sensor > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Light OFF Switch |
Light control switch DRL OFF*1 or OFF*2 position signal |
OFF or ON |
OFF: Light control switch not in DRL OFF*1 or OFF*2 position ON: Light control switch in DRL OFF*1 or OFF*2 position |
- |
|
Auto Light Switch |
Light control switch AUTO*3 or DRL*4 position signal |
OFF or ON |
OFF: Light control switch not in AUTO*3 or DRL*4 position ON: Light control switch in AUTO*3 or DRL*4 position |
- |
|
Head Light Switch (Tail) |
Light control switch TAIL position signal |
OFF or ON |
OFF: Light control switch not in TAIL position ON: Light control switch in TAIL position |
- |
|
High Beam Main Switch |
Dimmer switch High position signal |
OFF or ON |
OFF: Dimmer switch not in High position ON: Dimmer switch in High position |
- |
|
Passing Light Switch |
Dimmer switch Flash position (pass) signal |
OFF or ON |
OFF: Dimmer switch not in Flash position ON: Dimmer switch in Flash position |
- |
|
Front Fog Light Switch |
Fog light switch (front position) signal*5 |
OFF or ON |
OFF: Fog light switch in OFF position ON: Fog light switch in Fr position |
- |
- *1: w/ DRL OFF Switch
- *2: w/ Light Control Switch OFF Position
- *3: w/ Automatic Light Control System
- *4: w/ DRL Switch
- *5: w/ Front Fog Light
Chassis > Steering Angle Sensor > Data List
|
Tester Display |
|---|
|
Light OFF Switch |
|
Auto Light Switch |
|
Head Light Switch (Tail) |
|
High Beam Main Switch |
|
Passing Light Switch |
|
Front Fog Light Switch |
OK:
Normal conditions listed above are displayed.
| NG |
|
|
|
2. |
READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus:
(1) Chassis / Steering Angle Sensor / Data List.
(2) Body Electrical / Main Body / Data List.
(e) Read the Data List according to the display on the Techstream.
Chassis > Steering Angle Sensor > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Head Light Switch (Head) |
Light control switch HEAD position signal |
OFF or ON |
OFF: Light control switch not in HEAD position ON: Light control switch in HEAD position |
- |
Body Electrical > Main Body > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Head Light SW (Head) |
Light control switch HEAD position signal |
OFF or ON |
OFF: Light control switch not in HEAD position ON: Light control switch in HEAD position |
- |
Chassis > Steering Angle Sensor > Data List
|
Tester Display |
|---|
|
Head Light Switch (Head) |
Body Electrical > Main Body > Data List
|
Tester Display |
|---|
|
Head Light SW (Head) |
OK:
Normal conditions listed above are displayed.
|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
NG ("Steering Angle Sensor" side abnormality) |
B |
|
NG ("Main Body" side abnormality) |
C |
|
NG ("Steering Angle Sensor" and "Main Body" are abnormality) |
D |
| A |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
|
| B |
|
REPLACE STEERING SENSOR
|
| D |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (STEERING SENSOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Disconnect the G44 main body ECU (multiplex network body ECU) connector.
(b) Disconnect the G68 steering sensor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G68-7 (HEAD) - G44-16 (HEAD) |
Always |
Below 1 Ω |
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
INSPECT TURN SIGNAL SWITCH |
(a) Remove the turn signal switch.
Click here
![2019 - 2024 MY RAV4 RAV4 HV [11/2018 - ]; LIGHTING (EXT): HEADLIGHT DIMMER SWITCH: REMOVAL](/t3Portal/stylegraphics/info.gif)
(b) Inspect the turn signal switch.
Click here
| NG |
|
|
|
5. |
INSPECT STEERING WHEEL SWITCH HOUSING |
(a) Remove the steering wheel switch housing.
Click here
(b) Inspect the steering wheel switch housing.
Click here
| NG |
|
REPLACE STEERING WHEEL SWITCH HOUSING
|
|
|
6. |
CHECK HARNESS AND CONNECTOR (STEERING SENSOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Disconnect the G44 main body ECU (multiplex network body ECU) connector.
(b) Disconnect the G68 steering sensor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G68-7 (HEAD) or G44-16 (HEAD) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
REPLACE STEERING SENSOR
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
7. |
INSPECT TURN SIGNAL SWITCH |
(a) Remove the turn signal switch.
Click here
(b) Inspect the turn signal switch.
Click here
| NG |
|
|
|
8. |
INSPECT STEERING WHEEL SWITCH HOUSING |
(a) Remove the steering wheel switch housing.
Click here
(b) Inspect the steering wheel switch housing.
Click here
| OK |
|
REPLACE STEERING SENSOR
|
| NG |
|
REPLACE STEERING WHEEL SWITCH HOUSING
|
|
|