Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001FAIA
Model Year Start: 2019 Model: RAV4 Prod Date Range: [11/2018 -           ]
Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: Power Source Circuit; 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]

Power Source Circuit

DESCRIPTION

This circuit provides power to operate the blind spot monitor sensor.

WIRING DIAGRAM

for Gasoline Model
for HV Model

CAUTION / NOTICE / HINT

HINT:

  • w/o Stop and Start system:

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

  • w/ Stop and Start system:

    The blind spot monitor system troubleshooting procedure is based on the premise that the stop and start system is operating normally. Check the stop and start system first before troubleshooting the blind spot monitor system.

    Click here 2019 - 2023 MY RAV4 [11/2018 - 10/2023]; STOP AND START: STOP AND START SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING 2024 MY RAV4 [10/2023 -        ]; STOP AND START: STOP AND START SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH POWER SOURCE)

(a) Disconnect the blind spot monitor sensor LH connector.

*a

Front view of wire harness connector

(to Blind Spot Monitor Sensor LH)

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

Q1-5 (BLB) - Body ground

Ignition switch ON

10.5 to 16 V*1

11 to 14 V*2

Q1-5 (BLB) - Body ground

Ignition switch off

Below 1 V

*1: w/ Stop and Start System

*2: w/o Stop and Start System

Result

Proceed to

OK

A

NG (w/o Stop and Start System)

B

NG (w/ Stop and Start System)

C

B

REPAIR OR REPLACE HARNESS OR CONNECTOR

C

GO TO STOP AND START SYSTEM 2019 - 2023 MY RAV4 [11/2018 - 10/2023]; STOP AND START: STOP AND START SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING 2024 MY RAV4 [10/2023 -        ]; STOP AND START: STOP AND START SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

A

2.

CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR LH - BODY GROUND)

(a) Disconnect the blind spot monitor sensor LH connector.

*a

Front view of wire harness connector

(to Blind Spot Monitor Sensor LH)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

Q1-10 (BLGD) - Body ground

Always

Below 1 Ω

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.

CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR RH POWER SOURCE)

(a) Disconnect the blind spot monitor sensor RH connector.

*a

Front view of wire harness connector

(to Blind Spot Monitor Sensor RH)

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

Q13-5 (BRB) - Body ground

Ignition switch ON

10.5 to 16 V*1

11 to 14 V*2

Q13-5 (BRB) - Body ground

Ignition switch off

Below 1 V

*1: w/ Stop and Start System

*2: w/o Stop and Start System

Result

Proceed to

OK

A

NG (w/o Stop and Start System)

B

NG (w/ Stop and Start System)

C

B

REPAIR OR REPLACE HARNESS OR CONNECTOR

C

GO TO STOP AND START SYSTEM 2019 - 2023 MY RAV4 [11/2018 - 10/2023]; STOP AND START: STOP AND START SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING 2024 MY RAV4 [10/2023 -        ]; STOP AND START: STOP AND START SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

A

4.

CHECK HARNESS AND CONNECTOR (BLIND SPOT MONITOR SENSOR RH - BODY GROUND)

(a) Disconnect the blind spot monitor sensor RH connector.

*a

Front view of wire harness connector

(to Blind Spot Monitor Sensor RH)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

Q13-10 (BRGD) - Body ground

Always

Below 1 Ω

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: PROBLEM SYMPTOMS TABLE 2019 - 2020 MY RAV4 RAV4 HV [02/2019 - 06/2020]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: PROBLEM SYMPTOMS TABLE 2020 MY RAV4 RAV4 HV [06/2020 - 08/2020]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: PROBLEM SYMPTOMS TABLE 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: PROBLEM SYMPTOMS TABLE 2022 - 2024 MY RAV4 RAV4 HV [12/2021 -        ]; PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR