Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000002FQ1Z
Model Year Start: 2024 Model: RAV4 Prod Date Range: [10/2023 -           ]
Title: DOOR / HATCH: POWER BACK DOOR SYSTEM: TERMINALS OF ECU; 2024 MY RAV4 RAV4 HV [10/2023 -        ]

TERMINALS OF ECU

CHECK MULTIPLEX NETWORK DOOR ECU

(a) Disconnect the R26, R28, and R29 multiplex network door ECU connectors.

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

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

R26-9 (IG) - Body ground

IG power supply

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V

R26-7 (ECUB) - Body ground

Auxiliary battery power supply

Ignition switch off

11 to 14 V

R29-5 (B) - Body ground

Auxiliary battery power supply

Ignition switch off

11 to 14 V

R28-4 (GND) - Body ground

Body ground

Always

Below 1 Ω

(c) Reconnect the R26, R28, and R29 multiplex network door ECU connectors.

(d) Measure the voltage and waveform according to the value(s) in the table below.

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition
*: w/ Hands Free Power Back Door

R28-2 (DC+) - R28-6 (DC-)

Back door lock assembly (back door lock motor) circuit

Back door lock motor operating

11 to 14 V

Back door lock motor not operating

Below 1 V

R27-1 (OSL) - R27-9 (OSE)

Power back door sensor assembly LH signal

Power back door sensor assembly LH not pressed

4 to 6 V

Power back door sensor assembly LH pressed

Below 1 V

R27-3 (DSV2) - Body ground

Power back door unit assembly RH (door sensor) power supply

Always

7 V or higher

R27-4 (DSV) - Body ground

Power back door unit assembly LH (door sensor) power supply

Always

7 V or higher

R27-5 (DS2) - Body ground

Power back door unit assembly LH (door sensor) signal

Power back door not operating

7 V or higher

Power back door operating

Pulse generation

(See waveform 2)

R27-6 (DS12) - Body ground

Power back door unit assembly RH (door sensor) signal

Power back door not operating

7 V or higher

Power back door operating

Pulse generation

(See waveform 1)

R27-8 (OSR) - R27-9 (OSE)

Power back door sensor assembly RH signal

Power back door sensor assembly RH not pressed

4 to 6 V

Power back door sensor assembly RH pressed

Below 1 V

R27-10 (DSG2) - Body ground

Power back door unit assembly RH (door sensor) ground

Always

Below 1 V

R27-11 (DSG) - Body ground

Power back door unit assembly LH (door sensor) ground

Always

Below 1 V

R27-12 (DS22) - Body ground

Power back door unit assembly RH (door sensor) signal

Power back door not operating

7 V or higher

Power back door operating

Pulse generation

(See waveform 2)

R27-13 (DS1) - Body ground

Power back door unit assembly LH (door sensor) signal

Power back door not operating

7 V or higher

Power back door operating

Pulse generation

(See waveform 1)

R26-1 (BZR+) - Body ground

Power back door warning buzzer signal

Power back door warning buzzer sounding

Pulse generation

Power back door warning buzzer not sounding

Below 1 V

R26-3 (FUL) - Body ground

Back door lock with courtesy light switch assembly input

Back door open

Below 1 V

Back door closed

Pulse generation

R26-5(HAF) - Body ground

Back door lock with courtesy light switch assembly lock signal

Back door closed

11 to 14 V

Back door fully open

Below 1 V

R26-11(LIB) - Body ground

Back door lock with courtesy light switch assembly lock signal

Back door is locked

11 to 14 V

Back door is unlocked

Below 1 V

R26-12 (KSIN) - Body ground*

Kick detection signal

Ignition switch ON, kick door control sensor not detecting a foot → detecting a foot

Pulse generation

(See waveform 3)

R26-13(PAWL) - Body ground

Back door lock with courtesy light switch assembly lock signal

Back door fully open

Below 1 V

Back door ajar

11 to 14 V

Back door closed

11 to 14 V

Operation complete

Below 1 V

R26-14 (BDDN) - Body ground

Power back door control switch signal

Power back door control switch on

Below 1 V

Power back door control switch off

Pulse generation

R26-15(POS) - Body ground

Back door lock with courtesy light switch assembly signal

Back door open

Below 1 V

Back door closer operating

11 to 14 V

Operation complete

Below 1 V

(1) Using an oscilloscope, check waveform 1.

Waveform 1 (Reference)

Item

Condition

Tester Connection
  • R27-13 (DS1) - Body ground
  • R27-6 (DS12) - Body ground

Tool Setting

2 V/DIV., 2 ms./DIV.

Vehicle Condition

Power back door operating

HINT:

  • The period changes in accordance to the speed at which the power back door is opened and closed.
  • The wave height changes in accordance with the auxiliary battery voltage.

(2) Using an oscilloscope, check waveform 2.

Waveform 2 (Reference)

Item

Condition

Tester Connection
  • R27-5 (DS2) - Body ground
  • R27-12 (DS22) - Body ground

Tool Setting

2 V/DIV., 2 ms./DIV.

Vehicle Condition

Power back door operating

HINT:

  • The period changes in accordance to the speed at which the power back door is opened and closed.
  • The wave height changes in accordance with the auxiliary battery voltage.

(3) Using an oscilloscope, check waveform 3.

Waveform 3 (Reference)

Item

Content

Tester Connection

R26-12 (KSIN) - Body ground

Tool Setting

2 V/DIV., 50 ms./DIV.

Vehicle Condition

Ignition switch ON, kick door control sensor not detecting a foot → detecting a foot

*a

Kick detection signal

CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

*1

Main Body ECU (Multiplex Network Body ECU)

-

-

(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

Click here 2024 MY RAV4 RAV4 HV [10/2023 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

(b) Connect the instrument panel junction block assembly connectors.

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

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

A-30 (ACC) - Body ground

ACC power supply

Ignition switch ACC

11 to 14 V

Ignition switch off

Below 1 V

A-31 (BECU) - Body ground

Auxiliary battery power supply

Ignition switch off

11 to 14 V

A-32 (IG) - Body ground

IG power supply

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V

A-11 (GND1) - Body ground

Body ground

Always

Below 1 Ω

(d) Install the main body ECU (multiplex network body ECU).

Click here 2021 - 2024 MY RAV4 RAV4 HV [08/2020 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: INSTALLATION

(e) Measure the voltage and waveform according to the value(s) in the table below.

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

G43-13 (LSBO) - Body ground

Back door lock signal

Back door is locked

Below 1 V

Back door is unlocked

11 to 14 V

G45-4 (PBDS) - Body ground

Power back door control switch signal

Power back door control switch off

Pulse generation

Power back door control switch on

Below 1 V

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (for HV Model)

Click here 2019 - 2024 MY RAV4 HV [02/2019 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, HV Model): TERMINALS OF ECU

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (for Gasoline Model)

Click here 2019 - 2024 MY RAV4 [11/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function, Gasoline Model): TERMINALS OF ECU