Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001E7JL
Model Year Start: 2019 Model: RAV4 Prod Date Range: [11/2018 - 12/2021]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Reverse Signal Circuit; 2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021]

Reverse Signal Circuit

DESCRIPTION

for Gasoline Model

  • The radio and display receiver assembly receives a reverse signal from the park/neutral position switch assembly.

for HV Model

  • The radio and display receiver assembly receives a reverse signal from the back-up light relay.

WIRING DIAGRAM

PROCEDURE

1.

CHECK BACK-UP LIGHT

(a) Move the shift lever to R and check if the back-up lights come on.

OK:

The back-up lights come on.

NG

GO TO LIGHTING SYSTEM

w/ Headlight ECU: Click here 2019 - 2020 MY RAV4 RAV4 HV [11/2018 - 08/2020]; LIGHTING (EXT): LIGHTING SYSTEM (w/ Headlight ECU without AFS): HOW TO PROCEED WITH TROUBLESHOOTING 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; LIGHTING (EXT): LIGHTING SYSTEM (w/ Headlight ECU without AFS): HOW TO PROCEED WITH TROUBLESHOOTING

w/o Headlight ECU: Click here 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; LIGHTING (EXT): LIGHTING SYSTEM (w/o Headlight ECU): HOW TO PROCEED WITH TROUBLESHOOTING 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]; LIGHTING (EXT): LIGHTING SYSTEM (w/o Headlight ECU): HOW TO PROCEED WITH TROUBLESHOOTING

OK

2.

CHECK HARNESS AND CONNECTOR (REVERSE 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

G3-28 (REV) - Body ground

Ignition switch ON

Shift lever in R

11 to 14 V

G3-28 (REV) - Body ground

Ignition switch ON

Shift lever not in R

Below 1 V
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR