| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001G2CJ |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - 12/2021] |
| Title: LIGHTING (EXT): LIGHTING SYSTEM (w/ Headlight ECU without AFS): High Beam Headlight Circuit; 2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021] | ||
|
High Beam Headlight Circuit |
DESCRIPTION
The headlight ECU sub-assembly controls the high beam headlights.
WIRING DIAGRAM
for Triple Beam Headlight
for Single Beam Headlight
CAUTION / NOTICE / HINT
NOTICE:
If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.
Click here
![2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021]; LIGHTING (EXT): LIGHTING SYSTEM (w/ Headlight ECU without AFS): INITIALIZATION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CHECK LIGHTS |
(a) Check the illumination of each high beam lights.
|
Result |
Proceed to |
|---|---|
|
LH side high beam light does not illuminate |
A |
|
RH side high beam light does not illuminate |
B |
| B |
|
|
|
2. |
PERFORM ACTIVE TEST 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: Body Electrical / HL AutoLeveling / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > HL AutoLeveling > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Headlight High Beam |
High beam headlights |
OFF or ON |
- |
Body Electrical > HL AutoLeveling > Active Test
|
Tester Display |
|---|
|
Headlight High Beam |
OK:
High beam headlights turn on.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
|
|
|
3. |
CHECK HEADLIGHT UNIT ASSEMBLY LH |
(a) Interchange the headlight unit assembly LH with RH and connect the connectors.
for Triple Beam Headlight:
Click here
for Single Beam Headlight:
Click here
|
|
4. |
CHECK OPERATION (HIGH BEAM HEADLIGHT) |
(a) Check that the high beam headlight operates normally.
OK:
High beam headlight operates normally.
| OK |
|
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH
|
| NG (for Triple Beam Headlight) |
|
REPLACE HEADLIGHT UNIT ASSEMBLY LH
|
|
|
5. |
INSPECT HEADLIGHT UNIT ASSEMBLY LH |
|
*a |
Component without harness connected (to Headlight ECU Sub-assembly LH) |
*b |
Component without harness connected (to Headlight LED Unit Assembly LH) |
(a) Remove the headlight assembly LH.
Click here
(b) Remove the headlight LED unit assembly LH.
Click here
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Wiring Color |
Condition |
Specified Condition |
|---|---|---|---|
|
B-20 (HI SOL+) - C-5 |
R |
Always |
Below 1 Ω |
|
B-11 (HI SOL-) - C-10 |
B |
Always |
Below 1 Ω |
| OK |
|
REPLACE HEADLIGHT LED UNIT ASSEMBLY LH
|
| NG |
|
REPLACE HEADLIGHT UNIT ASSEMBLY LH
|
|
6. |
PERFORM ACTIVE TEST 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: Body Electrical / HL AutoLeveling (Sub) / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > HL AutoLeveling (Sub) > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Headlight High Beam |
High beam headlights |
OFF or ON |
- |
Body Electrical > HL AutoLeveling (Sub) > Active Test
|
Tester Display |
|---|
|
Headlight High Beam |
OK:
High beam headlights turn on.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
|
|
|
7. |
CHECK HEADLIGHT UNIT ASSEMBLY RH |
(a) Interchange the headlight unit assembly RH with LH and connect the connectors.
for Triple Beam Headlight:
Click here
for Single Beam Headlight:
Click here
|
|
8. |
CHECK OPERATION (HIGH BEAM HEADLIGHT) |
(a) Check that the high beam headlight operates normally.
OK:
High beam headlight operates normally.
| OK |
|
REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH
|
| NG (for Triple Beam Headlight) |
|
REPLACE HEADLIGHT UNIT ASSEMBLY RH
|
|
|
9. |
INSPECT HEADLIGHT UNIT ASSEMBLY RH |
|
*a |
Component without harness connected (to Headlight ECU Sub-assembly RH) |
*b |
Component without harness connected (to Headlight LED Unit Assembly RH) |
(a) Remove the headlight assembly RH.
Click here
(b) Remove the headlight LED unit assembly RH.
Click here
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Wiring Color |
Condition |
Specified Condition |
|---|---|---|---|
|
B-20 (HI SOL+) - C-5 |
R |
Always |
Below 1 Ω |
|
B-11 (HI SOL-) - C-10 |
B |
Always |
Below 1 Ω |
| OK |
|
REPLACE HEADLIGHT LED UNIT ASSEMBLY RH
|
| NG |
|
REPLACE HEADLIGHT UNIT ASSEMBLY RH
|
|
|