| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000002FQ2H |
| Model Year Start: 2024 | Model: RAV4 | Prod Date Range: [10/2023 - ] |
| Title: DOOR / HATCH: POWER BACK DOOR SYSTEM: Power Back Door Warning System does not Operate; 2024 MY RAV4 RAV4 HV [10/2023 - ] | ||
|
Power Back Door Warning System does not Operate |
DESCRIPTION
Depending on the operating conditions, the multiplex network door ECU sounds the buzzer and outputs a hazard light flash signal to the combination meter assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
If the multiplex network door ECU has been replaced, or if any of the connectors has been disconnected, initialize the power back door system.
Click here
![2024 MY RAV4 RAV4 HV [10/2023 - ]; DOOR / HATCH: POWER BACK DOOR SYSTEM: INITIALIZATION](/t3Portal/stylegraphics/info.gif)
-
First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this problem.
Click here
- If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.
PROCEDURE
|
1. |
CHECK OPERATION |
(a) Operate the power back door and check that the warning buzzer and hazard warning light operate.
|
Result |
Proceed to |
|---|---|
|
Hazard warning light does not come on |
A |
|
Power back door warning buzzer does not operate |
B |
| B |
|
|
|
2. |
CHECK WIRELESS DOOR LOCK CONTROL SYSTEM (HAZARD ANSWER-BACK FUNCTION) |
(a) Check wireless door lock operation.
for HV Model:
Click here
for Gasoline Model:
Click here
OK:
Hazard answer-back function operates normally.
| NG |
|
GO TO WIRELESS DOOR LOCK CONTROL SYSTEM for HV Model: Click here
for Gasoline Model: Click here
|
|
|
3. |
REPLACE MULTIPLEX NETWORK DOOR ECU |
(a) Temporarily replace the multiplex network door ECU with a new or normally functioning one.
Click here
|
|
4. |
INITIALIZE MULTIPLEX NETWORK DOOR ECU |
(a) Perform the initialization for the multiplex network door ECU.
Click here
|
|
5. |
CHECK POWER BACK DOOR SYSTEM |
(a) Check that the power back door hazard warning lights operate normally.
Click here
OK:
The power back door hazard warning lights operate normally.
| OK |
|
END (MULTIPLEX NETWORK DOOR ECU WAS DEFECTIVE) |
| NG |
|
|
6. |
PERFORM ACTIVE TEST USING GTS |
(a) Perform the Active Test according to the display on the GTS.
Body Electrical > Back Door > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
PBD Buzzer (Small Volume) |
Power back door warning buzzer sound (small volume) |
Start |
- |
|
PBD Buzzer (Middle Volume) |
Power back door warning buzzer sound (Middle volume) |
Start |
- |
|
PBD Buzzer (Large Volume) |
Power back door warning buzzer sound (Large volume) |
Start |
- |
Body Electrical > Back Door > Active Test
|
Tester Display |
|---|
|
PBD Buzzer (Small Volume) |
Body Electrical > Back Door > Active Test
|
Tester Display |
|---|
|
PBD Buzzer (Middle Volume) |
Body Electrical > Back Door > Active Test
|
Tester Display |
|---|
|
PBD Buzzer (Large Volume) |
OK:
Power back door warning buzzer sounds.
| OK |
|
|
|
7. |
CHECK MULTIPLEX NETWORK DOOR ECU |
(a) Disconnect the Q2 Power back door warning buzzer connector.
(b) Perform the Active Test according to the display on the GTS.
Body Electrical > Back Door > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
PBD Buzzer (Middle Volume) |
Power back door warning buzzer sound (Middle volume) |
Start |
- |
Body Electrical > Back Door > Active Test
|
Tester Display |
|---|
|
PBD Buzzer (Middle Volume) |
|
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
| OK |
|
|
|
8. |
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 R26 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+) - R26-1 (BZR+) |
Always |
Below 1 Ω |
|
Q2-2 (BZR-) - Body ground |
Always |
Below 1 Ω |
|
Q2-1 (BZR+) or R26-1 (BZR+) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|