Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001H3XO
Model Year Start: 2019 Model: RAV4 Prod Date Range: [02/2019 - 12/2021]
Title: LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): High Beam Headlight Circuit; 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]

High Beam Headlight Circuit

DESCRIPTION

The headlight ECU sub-assembly controls the high beam headlights.

WIRING DIAGRAM

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 [02/2019 - 12/2021]; LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): INITIALIZATION

PROCEDURE

1.

CHECK LIGHTS

(a) Check the illumination of each high beam light.

Result

Proceed to

LH side high beam light does not illuminate

A

RH side high beam light does not illuminate

B

B

GO TO STEP 5

A

2.

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 / AFS / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Body Electrical > AFS > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Headlight High Beam

High beam headlights

OFF or ON

-

Body Electrical > AFS > Active Test

Tester Display

Headlight High Beam

OK:

High beam headlights turn on.

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 2019 - 2020 MY RAV4 RAV4 HV [02/2019 - 08/2020]; LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): PROBLEM SYMPTOMS TABLE 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): PROBLEM SYMPTOMS TABLE

NG

3.

CHECK HEADLIGHT UNIT ASSEMBLY LH

(a) Interchange the headlight unit assembly LH with RH and connect the connectors.

Click here 2019 - 2020 MY RAV4 RAV4 HV [02/2019 - 08/2020]; LIGHTING (EXT): HEADLIGHT ASSEMBLY(for Single Beam Headlight): DISASSEMBLY 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; LIGHTING (EXT): HEADLIGHT ASSEMBLY(for Single Beam Headlight): DISASSEMBLY

NEXT

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

REPLACE HEADLIGHT UNIT ASSEMBLY LH 2019 - 2020 MY RAV4 RAV4 HV [02/2019 - 08/2020]; LIGHTING (EXT): HEADLIGHT ASSEMBLY(for Single Beam Headlight): DISASSEMBLY 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; LIGHTING (EXT): HEADLIGHT ASSEMBLY(for Single Beam Headlight): DISASSEMBLY

5.

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 / AFS (Sub) / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Body Electrical > AFS (Sub) > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Headlight High Beam

High beam headlights

OFF or ON

-

Body Electrical > AFS (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 2019 - 2020 MY RAV4 RAV4 HV [02/2019 - 08/2020]; LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): PROBLEM SYMPTOMS TABLE 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): PROBLEM SYMPTOMS TABLE

NG

6.

CHECK HEADLIGHT UNIT ASSEMBLY RH

(a) Interchange the headlight unit assembly RH with LH and connect the connectors.

Click here 2019 - 2020 MY RAV4 RAV4 HV [02/2019 - 08/2020]; LIGHTING (EXT): HEADLIGHT ASSEMBLY(for Single Beam Headlight): DISASSEMBLY 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; LIGHTING (EXT): HEADLIGHT ASSEMBLY(for Single Beam Headlight): DISASSEMBLY

NEXT

7.

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

REPLACE HEADLIGHT UNIT ASSEMBLY RH 2019 - 2020 MY RAV4 RAV4 HV [02/2019 - 08/2020]; LIGHTING (EXT): HEADLIGHT ASSEMBLY(for Single Beam Headlight): DISASSEMBLY 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; LIGHTING (EXT): HEADLIGHT ASSEMBLY(for Single Beam Headlight): DISASSEMBLY