- CH1: R18-1 (DS1) - Body ground
- CH2: R18-2 (DS2) - Body ground
| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001FQP0 |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - 10/2023] |
| Title: DOOR / HATCH: POWER BACK DOOR SYSTEM (for Gasoline Model): B2226; PBD Unit Pulse Sensor LH Circuit; 2019 - 2023 MY RAV4 [11/2018 - 10/2023] | ||
|
DTC |
B2226 |
PBD Unit Pulse Sensor LH Circuit |
DESCRIPTION
This DTC is output when the multiplex network door ECU detects a power back door unit assembly set LH pulse malfunction.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
B2226 |
PBD Unit Pulse Sensor LH Circuit |
Multiplex network door ECU detects power back door unit assembly set LH pulse malfunction |
|
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 [11/2018 - 10/2023]; DOOR / HATCH: POWER BACK DOOR SYSTEM (for Gasoline Model): INITIALIZATION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CHECK FOR DTC |
(a) Clear the DTCs.
Click here
Body Electrical > Back Door > Clear DTCs
(b) Check for DTCs.
Click here
Body Electrical > Back Door > Trouble Codes
OK:
DTC B2226 is not output.
| OK |
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK DOOR ECU - POWER BACK DOOR UNIT ASSEMBLY SET LH) |
(a) Disconnect the R18 multiplex network door ECU connector.
(b) Disconnect the R21 power back door unit assembly set LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R18-21 (DSG) - R21-4 (DSG) |
Always |
Below 1 Ω |
|
R18-25 (DSV) - R21-3 (DSV) |
Always |
Below 1 Ω |
|
R18-2 (DS2) - R21-6 (DS2) |
Always |
Below 1 Ω |
|
R18-1 (DS1) - R21-5 (DS1) |
Always |
Below 1 Ω |
|
R18-21 (DSG) or R21-4 (DSG) - Body ground |
Always |
10 kΩ or higher |
|
R18-25 (DSV) or R21-3 (DSV) - Body ground |
Always |
10 kΩ or higher |
|
R18-2 (DS2) or R21-6 (DS2) - Body ground |
Always |
10 kΩ or higher |
|
R18-1 (DS1) or R21-5 (DS1) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
CHECK MULTIPLEX NETWORK DOOR ECU |
|
(a) Disconnect the power back door unit assembly set LH connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R21-4 (DSG) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R21-5 (DS1) - Body ground |
Always |
7 V or higher |
|
R21-6 (DS2) - Body ground |
Always |
7 V or higher |
|
R21-3 (DSV) - Body ground |
Always |
7 V or higher |
| NG |
|
|
|
4. |
CHECK POWER BACK DOOR UNIT ASSEMBLY SET LH |
(a) Using an oscilloscope, check the waveform of each terminal from the rear of the R18 multiplex network door ECU connector.
|
*a |
Component with harness connected (Multiplex Network Door ECU) |
*b |
Waveform (CH1) |
|
*c |
Waveform (CH2) |
- |
- |
Measurement Condition:
|
Item |
Condition |
|---|---|
|
Tester Connection |
|
|
Tool setting |
2 V/DIV., 2 ms./DIV. |
|
Vehicle condition |
Open and close the back door by hand. |
HINT:
The period changes in accordance to the speed at which the back door is opened and closed by hand.
OK:
The waveform displayed is as shown in the illustration.
| OK |
|
| NG |
|
|
|