- R18-1 (DS1) - Body ground
- R18-3 (DS12) - Body ground
| Last Modified: 05-08-2025 | 6.11:8.1.0 | Doc ID: RM100000001FQO0 |
| Model Year Start: 2019 | Model: RAV4 HV | Prod Date Range: [11/2018 - 10/2023] |
| Title: DOOR / HATCH: POWER BACK DOOR SYSTEM (for HV Model): TERMINALS OF ECU; 2019 - 2023 MY RAV4 HV [11/2018 - 10/2023] | ||
TERMINALS OF ECU
CHECK MULTIPLEX NETWORK DOOR ECU
(a) Disconnect the R18 and R19 multiplex network door ECU connectors.
(b) Measure the voltage and resistance according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
R18-18 (IG) - Body ground |
W - Body ground |
IG power supply |
Power switch on (IG) |
11 to 14 V |
|
Power switch off |
Below 1 V |
|||
|
R18-20 (ECUB) - Body ground |
W - Body ground |
Auxiliary battery power supply |
Power switch off |
11 to 14 V |
|
R19-1 (B) - Body ground |
W - Body ground |
Auxiliary battery power supply |
Power switch off |
11 to 14 V |
|
R19-10 (GND) - Body ground |
W - Body ground |
Body ground |
Always |
Below 1 Ω |
(c) Reconnect the R18 and R19 multiplex network door ECU connectors.
(d) Measure the voltage and waveform according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
| *: w/ Hands Free Power Back Door | ||||
|
R18-1 (DS1) - Body ground |
L - 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) |
|||
|
R18-2 (DS2) - Body ground |
R - 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) |
|||
|
R18-3 (DS12) - Body ground |
V - 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) |
|||
|
R18-4 (DS22) - Body ground |
R - 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) |
|||
|
R18-5 (DSV2) - Body ground |
G - Body ground |
Power back door unit assembly RH (door sensor) power supply |
Always |
7 V or higher |
|
R18-6 (OSR) - R18-24 (OSE) |
SB - GR |
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 |
|||
|
R18-8 (BDDN) - Body ground |
LG - Body ground |
Back door control switch signal |
Back door control switch on |
Below 1 V |
|
Back door control switch off |
Pulse generation |
|||
|
R18-12 (LIB) - Body ground |
W - Body ground |
Back door lock signal |
Back door is locked |
Below 1 V |
|
Back door is unlocked |
11 to 14 V |
|||
|
R18-14 (KSIN) - Body ground* |
W - Body ground |
Kick detection signal |
Power switch on (IG), kick door control sensor not detecting a foot → detecting a foot |
Pulse generation (See waveform 3) |
|
R18-16 (BZR+) - Body ground |
W - 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 |
|||
|
R18-19 (DSG2) - Body ground |
P - Body ground |
Power back door unit assembly RH (door sensor) ground |
Always |
Below 1 V |
|
R18-21 (DSG) - Body ground |
P - Body ground |
Power back door unit assembly LH (door sensor) ground |
Always |
Below 1 V |
|
R18-25 (DSV) - Body ground |
G - Body ground |
Power back door unit assembly LH (door sensor) power supply |
Always |
7 V or higher |
|
R18-26 (OSL) - R18-24 (OSE) |
L - GR |
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 |
|||
|
R19-4 (DC+) - R19-3 (DC-) |
LA-B - LA-R |
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 |
|||
(1) Using an oscilloscope, check waveform 1.
Waveform 1 (Reference)
|
Item |
Condition |
|---|---|
|
Tester Connection |
|
|
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.
(2) Using an oscilloscope, check waveform 2.
Waveform 2 (Reference)
|
Item |
Condition |
|---|---|
|
Tester Connection |
|
|
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.
(3) Using an oscilloscope, check waveform 3.
Waveform 3 (Reference)
|
Item |
Content |
|---|---|
|
Tester connection |
R18-14 (KSIN) - Body ground |
|
Tool setting |
2 V/DIV., 50 ms./DIV. |
|
Vehicle condition |
Power switch on (IG), 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
![2019 MY RAV4 RAV4 HV [11/2018 - 02/2019]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL](/t3Portal/stylegraphics/info.gif)
(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) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A-31 (BECU) - Body ground |
None - Body ground |
Auxiliary battery power supply |
Power switch off |
11 to 14 V |
|
A-30 (ACC) - Body ground |
None - Body ground |
ACC power supply |
Power switch on (ACC) |
11 to 14 V |
|
Power switch off |
Below 1 V |
|||
|
A-32 (IG) - Body ground |
None - Body ground |
IG power supply |
Power switch on (IG) |
11 to 14 V |
|
Power switch off |
Below 1 V |
|||
|
A-11 (GND1) - Body ground |
None - Body ground |
Body ground |
Always |
Below 1 Ω |
(d) Install the main body ECU (multiplex network body ECU).
Click here
(e) Measure the voltage and waveform according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
G43-13 (LSBO) - Body ground |
G - 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 |
G - Body ground |
Power back door switch signal |
Power back door switch off |
Pulse generation |
|
Power back door switch on |
Below 1 V |
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Click here
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