Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001FQOI
Model Year Start: 2019 Model: RAV4 HV Prod Date Range: [11/2018 - 10/2023]
Title: DOOR / HATCH: POWER BACK DOOR SYSTEM (for HV Model): Power Back Door Warning System does not Operate; 2019 - 2023 MY RAV4 HV [11/2018 - 10/2023]

Power Back Door Warning System does not Operate

DESCRIPTION

When the power back door warning system does not operate, one of the following may be malfunctioning: 1) wireless door lock control system, 2) power back door warning buzzer circuit or 3) multiplex network door ECU.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • If the replacement, removal and installation of the multiplex network door ECU or disconnection of the connectors of the multiplex network door ECU has been performed, initialize the power back door system.

    Click here 2019 - 2023 MY RAV4 HV [11/2018 - 10/2023]; DOOR / HATCH: POWER BACK DOOR SYSTEM (for HV Model): INITIALIZATION

  • The power back door warning function can be customized. Make sure the function is ON.

    Click here 2019 - 2023 MY RAV4 HV [11/2018 - 10/2023]; DOOR / HATCH: POWER BACK DOOR SYSTEM (for HV Model): CUSTOMIZE PARAMETERS

  • If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.

PROCEDURE

1.

CHECK OPERATION

(a) Check power back door system operation.

Click here 2019 - 2023 MY RAV4 HV [11/2018 - 10/2023]; DOOR / HATCH: POWER BACK DOOR SYSTEM (for HV Model): OPERATION CHECK

Result

Proceed to

Hazard warning light does not come on

A

Power back door warning buzzer does not operate

B

B

GO TO STEP 6

A

2.

CHECK WIRELESS DOOR LOCK CONTROL SYSTEM (HAZARD ANSWER-BACK FUNCTION)

(a) Check wireless door lock operation.

Click here 2019 MY RAV4 HV [11/2018 - 02/2019]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (for HV Model, with Smart Key System): OPERATION CHECK 2019 - 2020 MY RAV4 HV [02/2019 - 08/2020]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (for HV Model, with Smart Key System): OPERATION CHECK 2021 - 2024 MY RAV4 HV [08/2020 -        ]; DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (for HV Model, with Smart Key System): OPERATION CHECK

OK:

Hazard answer-back function operates normally.

NG

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM

OK

3.

REPLACE MULTIPLEX NETWORK DOOR ECU

(a) Temporarily replace the multiplex network door ECU with a new or normally functioning one.

Click here 2019 - 2023 MY RAV4 RAV4 HV [11/2018 - 10/2023]; DOOR / HATCH: BACK DOOR CLOSER ECU: REMOVAL

NEXT

4.

INITIALIZE MULTIPLEX NETWORK DOOR ECU

(a) Perform the initialization for the multiplex network door ECU.

Click here 2019 - 2023 MY RAV4 HV [11/2018 - 10/2023]; DOOR / HATCH: POWER BACK DOOR SYSTEM (for HV Model): INITIALIZATION

NEXT

5.

CHECK POWER BACK DOOR SYSTEM

(a) Check that the power back door hazard warning lights operate normally.

Click here 2019 - 2023 MY RAV4 HV [11/2018 - 10/2023]; DOOR / HATCH: POWER BACK DOOR SYSTEM (for HV Model): OPERATION CHECK

OK:

The power back door hazard warning lights operate normally.

OK

END (MULTIPLEX NETWORK DOOR ECU WAS DEFECTIVE)

NG

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2020 MY RAV4 RAV4 HV [10/2019 - 08/2020]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

6.

PERFORM ACTIVE TEST USING TECHSTREAM

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

Click here 2019 - 2023 MY RAV4 HV [11/2018 - 10/2023]; DOOR / HATCH: POWER BACK DOOR SYSTEM (for HV Model): DATA LIST / ACTIVE TEST

Body Electrical > Back Door > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

PBD Buzzer

Power back door warning buzzer sound

ON or OFF

-

Body Electrical > Back Door > Active Test

Tester Display

PBD Buzzer

OK:

Power back door warning buzzer sounds.

OK

REPLACE MULTIPLEX NETWORK DOOR ECU

NG

7.

CHECK HARNESS AND CONNECTOR (POWER BACK DOOR WARNING BUZZER - MULTIPLEX NETWORK DOOR ECU AND BODY GROUND)

(a) Disconnect the Q2 power back door warning buzzer connector.

(b) Disconnect the R18 multiplex network door ECU connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

Q2-1 (BZR+) - R18-16 (BZR+)

Always

Below 1 Ω

Q2-2 (BZR-) - Body ground

Always

Below 1 Ω

Q2-1 (BZR+) or R18-16 (BZR+) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

8.

REPLACE POWER BACK DOOR WARNING BUZZER

(a) Temporarily replace the power back door warning buzzer with a new or normally functioning one.

Click here 2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; DOOR / HATCH: POWER BACK DOOR WARNING BUZZER: REMOVAL 2019 MY RAV4 RAV4 HV [02/2019 - 10/2019]; DOOR / HATCH: POWER BACK DOOR WARNING BUZZER: REMOVAL 2020 MY RAV4 RAV4 HV [10/2019 - 08/2020]; DOOR / HATCH: POWER BACK DOOR WARNING BUZZER: REMOVAL 2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; DOOR / HATCH: POWER BACK DOOR WARNING BUZZER: REMOVAL 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; DOOR / HATCH: POWER BACK DOOR WARNING BUZZER: REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; DOOR / HATCH: POWER BACK DOOR WARNING BUZZER: REMOVAL

NEXT

9.

CHECK POWER BACK DOOR SYSTEM

(a) Check that the power back door warning buzzer operates normally.

Click here 2019 - 2023 MY RAV4 HV [11/2018 - 10/2023]; DOOR / HATCH: POWER BACK DOOR SYSTEM (for HV Model): OPERATION CHECK

OK:

Power back door warning buzzer sounds.

OK

END (POWER BACK DOOR WARNING BUZZER WAS DEFECTIVE)

NG

REPLACE MULTIPLEX NETWORK DOOR ECU