Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM1000000026OM7
Model Year Start: 2023 Model: RAV4 Prod Date Range: [10/2022 -           ]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: Even though Headlights are Turned on Head-unit does not Dim the Display; 2023 - 2024 MY RAV4 RAV4 HV [10/2022 -        ]

Even though Headlights are Turned on Head-unit does not Dim the Display

WIRING DIAGRAM

CAUTION / NOTICE / HINT

HINT:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.

Click here 2023 - 2024 MY RAV4 RAV4 HV [10/2022 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: PRECAUTION

PROCEDURE

1.

CHECK IMAGE QUALITY SETTING

(a) Select settings icon from the screen.

(b) Select "Display" from the "Settings" menu screen.

(c) Select "Screen" to display the settings screen.

(d) Turn the light control switch to the tail or head position.

(e) Check that the "Automatic" setting on the display adjustment screen is set to on.

Result

Proceed to

"Automatic" setting is set to off.

A

"Automatic" setting is set to on.

B

A

CHANGE "Automatic" SCREEN SETTING TO ON

B

2.

CHECK RHEOSTAT SETTING

(a) Check the rheostat setting.

Result

Proceed to

Set to maximum brightness

A

Set to other than the maximum brightness

B

A

SET RHEOSTAT SETTING TO OTHER THAN MAXIMUM BRIGHTNESS

B

3.

CHECK VEHICLE SIGNAL (OPERATION CHECK)

(a) Enter diagnostic mode.

Click here 2023 - 2024 MY RAV4 RAV4 HV [10/2022 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DIAGNOSIS SYSTEM

(b) Select "Function Check/Setting" from the "Service Menu" screen.

(c) Select "System Sensors Check" from the "Function Check/Setting I" screen.

(d) Operate the light control switch and check that the display changes between ON and OFF accordingly.

OK:

TAIL

Condition

Display

Light control switch OFF

OFF

Light control switch TAIL or HEAD

ON

ADIM/TCAN

Condition

Display

Ignition switch ON, Light control switch TAIL or HEAD, Automatic light control sensor is covered by hand

Dimmed

Ignition switch ON, Light control switch TAIL or HEAD, Automatic light control sensor is not covered by hand

Not dimmed

HINT:

This display is updated once per second.

Result

Proceed to

Normal

A

TAIL signal malfunction

B

ADIM/TCAN signal malfunction

C

A

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

C

GO TO CAN COMMUNICATION SYSTEM

for HV Model: Click here 2019 - 2024 MY RAV4 HV [02/2019 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

for Gasoline Model: Click here 2019 - 2024 MY RAV4 [11/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

B

4.

CHECK HARNESS AND CONNECTOR (ILL+ CIRCUIT)

(a) Disconnect the G3 radio and display receiver assembly connector.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

G3-25 (ILL+) - Body ground

Ignition switch ON, Light control switch TAIL or HEAD

11 to 14 V

NG

REPLACE OR REPLACE HARNESS OR CONNECTOR

OK

5.

CHECK HARNESS AND CONNECTOR (RADIO AND RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY)

(a) Disconnect the H1 radio and display receiver assembly connector.

(b) Disconnect the G18*1 or G141*2 combination meter assembly connector.

  • *1: except 12.3 Inch TFT Display Type
  • *2: for 12.3 Inch TFT Display Type

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

*1: except 12.3 Inch TFT Display Type

*2: for 12.3 Inch TFT Display Type

H1-24 (ILL-) - G18-35 (ILL-)*1

Always

Below 1 Ω

H1-24 (ILL-) - G141-7 (ILL-)*2

Always

Below 1 Ω

OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR