Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM10000000222Q4
Model Year Start: 2022 Model: RAV4 Prod Date Range: [12/2021 - 10/2022]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Illumination Circuit; 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]

Illumination Circuit

DESCRIPTION

Power is supplied to the radio and display receiver assembly and steering pad switch assembly illumination when the light control switch is in the tail or head position.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

    Click here 2021 - 2024 MY RAV4 RAV4 HV [08/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: PRECAUTION

  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK VEHICLE CONDITION

(a) Check the vehicle condition.

Result

Proceed to

w/o Rheostat Control Switch

A

w/ Rheostat Control Switch

B

B

GO TO STEP 5

A

2.

CHECK ILLUMINATION

(a) Check if the illumination for the radio and display receiver assembly, steering pad switch assembly, heater control switch or others (hazard switch, transmission control switch, etc.) comes on when the light control switch is turned to the head or tail position.

Result

Proceed to

Illumination comes on for all components except steering pad switch assembly.

A

Illumination comes on for all components except radio and display receiver assembly.

B

No illumination comes on (radio and display receiver assembly, hazard switch, heater control switch, etc.).

C

B

GO TO STEP 4

C

GO TO LIGHTING SYSTEM

A

3.

CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

(a) Disconnect the spiral cable sub-assembly connector.

*a

Front view of wire harness connector

(to Spiral Cable Sub-assembly)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G20-9 (IL-2) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G20-14 (IL+2) - Body ground

Light control switch in tail or head position

11 to 14 V

OK

GO TO STEP 7

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.

CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

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

*a

Front view of wire harness connector

(to Radio and Display Receiver Assembly)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G2-16 (ILL-) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G2-15 (ILL+) - Body ground

Light control switch in tail or head position

11 to 14 V

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.

CHECK ILLUMINATION

(a) Check if the illumination for the radio and display receiver assembly, steering pad switch assembly, heater control switch or others (hazard switch, transmission control switch, etc.) comes on when the light control switch is turned to the head or tail position.

Result

Proceed to

Illumination comes on for all components except steering pad switch assembly.

A

Illumination comes on for all components except radio and display receiver assembly.

B

No illumination comes on (radio and display receiver assembly, hazard switch, heater control switch, etc.).

C

B

GO TO STEP 9

C

GO TO LIGHTING SYSTEM

A

6.

CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

(a) Disconnect the spiral cable sub-assembly connector.

*a

Front view of wire harness connector

(to Spiral Cable Sub-assembly)

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G20-14 (IL+2) - Body ground

Light control switch in tail or head position

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

7.

INSPECT STEERING PAD SWITCH ASSEMBLY

(a) Remove the steering pad switch assembly.

Click here 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; STEERING COLUMN: STEERING PAD SWITCH: REMOVAL

(b) Inspect the steering pad switch assembly.

Click here 2021 - 2024 MY RAV4 RAV4 HV [08/2020 -        ]; STEERING COLUMN: STEERING PAD SWITCH: INSPECTION

NG

REPLACE STEERING PAD SWITCH ASSEMBLY

OK

8.

INSPECT SPIRAL CABLE SUB-ASSEMBLY

(a) Remove the spiral cable sub-assembly.

Click here 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: REMOVAL

(b) Inspect the spiral cable sub-assembly.

Click here 2021 - 2024 MY RAV4 RAV4 HV [08/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: INSPECTION

OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY, COMBINATION METER ASSEMBLY)

NG

REPLACE SPIRAL CABLE SUB-ASSEMBLY

9.

CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

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

*a

Front view of wire harness connector

(to Radio and Display Receiver Assembly)

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G2-15 (ILL+) - Body ground

Light control switch in tail or head position

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

10.

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

(a) Disconnect the G2 radio and display receiver assembly connector.

(b) Disconnect the G18 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G2-16 (ILL-) - G18-35 (ILL-)

Always

Below 1 Ω

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR