- Multiplex network master switch assembly stuck
- Multiplex network master switch assembly held in same position for more than 20 seconds
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VK6C |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: B2312; Power Window Switch Malfunction; 2016 - 2020 MY Sienna [12/2015 - ] | ||
|
DTC |
B2312 |
Power Window Switch Malfunction |
DESCRIPTION
The power window regulator motor assembly is operated by the multiplex network master switch assembly or power window regulator switch assembly. The power window regulator motor assembly has motor, regulator and ECU functions.
This DTC is output when the ECU built into the regulator motor determines that the multiplex network master switch assembly or power window regulator switch assembly is stuck.
HINT:
DTC B2312 can be stored in the multiplex network master switch assembly and in each power window regulator motor assembly (power window ECU).
Master Switch (Multiplex Network Master Switch Assembly)
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2312 |
|
Multiplex network master switch assembly |
D-Door Motor (Front Power Window Regulator Motor Assembly LH)
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2312 |
|
|
P-Door Motor (Front Power Window Regulator Motor Assembly RH)
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2312 |
|
|
RL-Door Motor (Rear Power Window Regulator Motor Assembly LH)
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2312 |
|
|
RR-Door Motor (Rear Power Window Regulator Motor Assembly RH)
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2312 |
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- DTC B2312 is stored in the multiplex network master switch assembly and in each power window regulator motor assembly.
-
If a power window regulator motor assembly has been replaced with a new one, initialize the power window control system (See page
![2016 - 2020 MY Sienna [12/2015 - ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: INITIALIZATION](/t3Portal/stylegraphics/info.gif)
).
- Inspect the fuses for circuits related to this system before performing the following procedure.
-
The power window control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly (See page
).
PROCEDURE
|
1. |
CHECK DTC OUTPUT |
(a) Clear the DTC (See page
).
(b) Check for DTCs (See page
).
OK:
No DTCs output.
| OK |
|
END (DUE TO SWITCH BEING OPERATED FOR 20 SECONDS OR MORE) |
|
|
2. |
CHECK DTC OUTPUT |
(a) Check for DTC output conditions.
Result
|
Result |
Proceed to |
|---|---|
|
DTC output from multiplex network master switch assembly |
A |
|
DTC output from front power window regulator motor assembly LH |
B |
|
DTC output from front power window regulator motor assembly RH |
C |
|
DTC output from rear power window regulator motor assembly LH |
D |
|
DTC output from rear power window regulator motor assembly RH |
E |
| A |
|
| C |
|
| D |
|
| E |
|
|
|
3. |
READ VALUE USING TECHSTREAM (D-DOOR MOTOR) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / D-Door Motor / Data List.
(e) Read the Data List according to the display on the Techstream.
D-Door Motor (Front Power Window Regulator Motor Assembly LH)
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
D Door P/W Up SW |
Driver side power window manual up switch signal / ON or OFF |
ON: Driver side power window manual up switch operated OFF: Driver side power window manual up switch not operated |
- |
|
D Door P/W Down SW |
Driver side power window manual down switch signal / ON or OFF |
ON: Driver side power window manual down switch operated OFF: Driver side power window manual down switch not operated |
- |
OK:
On the Techstream screen, ON or OFF is displayed accordingly.
| OK |
|
|
|
4. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH) |
(a) Disconnect the H14 multiplex network master switch assembly connector.
(b) Disconnect the H1 front power window regulator motor assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H14-20 (UP) - Body ground |
Always |
10 kΩ or higher |
|
H14-15 (DOWN) - Body ground |
Always |
10 kΩ or higher |
|
H1-10 (UP) - Body ground |
Always |
10 kΩ or higher |
|
H1-7 (DOWN) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
5. |
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY |
(a) Replace the multiplex network master switch assembly (See page
).
|
|
6. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page
).
(b) Check for DTCs (See page
).
OK:
DTC B2312 is not output.
| OK |
|
END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE) |
| NG |
|
|
7. |
READ VALUE USING TECHSTREAM (P-DOOR MOTOR) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / P-Door Motor / Data List.
(e) Read the Data List according to the display on the Techstream.
P-Door Motor (Front Power Window Regulator Motor Assembly RH)
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
P Door P/W Auto SW |
Front passenger side power window auto up/down switch signal / ON or OFF |
ON: Front passenger side power window auto switch operated OFF: Front passenger side power window auto switch not operated |
- |
|
P Door P/W Up SW |
Front passenger side power window manual up switch signal / ON or OFF |
ON: Front passenger side power window manual up switch operated OFF: Front passenger side power window manual up switch not operated |
- |
|
P Door P/W Down SW |
Front passenger side power window manual down switch signal / ON or OFF |
ON: Front passenger side power window manual down switch operated OFF: Front passenger side power window manual down switch not operated |
- |
OK:
On the Techstream screen, ON or OFF is displayed accordingly.
| OK |
|
|
|
8. |
INSPECT FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH |
(a) Remove the front power window regulator switch assembly RH (See page
).
(b) Inspect the front power window regulator switch assembly RH (See page
).
| NG |
|
|
|
9. |
CHECK HARNESS AND CONNECTOR (FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH - FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH) |
(a) Disconnect the G15 front power window regulator motor assembly RH connector.
(b) Disconnect the G1 front power window regulator switch assembly RH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G1-10 (UP) - Body ground |
Always |
10 kΩ or higher |
|
G1-7 (DOWN) - Body ground |
Always |
10 kΩ or higher |
|
G1-4 (AUTO) - Body ground |
Always |
10 kΩ or higher |
|
G15-5 (UP) - Body ground |
Always |
10 kΩ or higher |
|
G15-4 (DOWN) - Body ground |
Always |
10 kΩ or higher |
|
G15-8 (AUTO) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
10. |
READ VALUE USING TECHSTREAM (RL-DOOR MOTOR) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / RL-Door Motor / Data List.
(e) Read the Data List according to the display on the Techstream.
RL-Door Motor (Rear Power Window Regulator Motor Assembly LH)
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
RL Door P/W Auto SW |
Rear LH side power window auto up/down switch signal / ON or OFF |
ON: Rear LH side power window auto switch operated OFF: Rear LH side power window auto switch not operated |
- |
|
RL Door P/W Up SW |
Rear LH side power window manual up switch signal / ON or OFF |
ON: Rear LH side power window manual up switch operated OFF: Rear LH side power window manual up switch not operated |
- |
|
RL Door P/W Down SW |
Rear LH side power window manual down switch signal / ON or OFF |
ON: Rear LH side power window manual down switch operated OFF: Rear LH side power window manual down switch not operated |
- |
OK:
On the Techstream screen, ON or OFF is displayed accordingly.
| OK |
|
|
|
11. |
INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH |
(a) Remove the rear power window regulator switch assembly LH (See page
).
(b) Inspect the rear power window regulator switch assembly LH (See page
).
| NG |
|
|
|
12. |
CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH - REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH) |
(a) Disconnect the J7 rear power window regulator motor assembly LH connector.
(b) Disconnect the J12 rear power window regulator switch assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
J7-10 (UP) - Body ground |
Always |
10 kΩ or higher |
|
J7-7 (DOWN) - Body ground |
Always |
10 kΩ or higher |
|
J7-4 (AUTO) - Body ground |
Always |
10 kΩ or higher |
|
J12-5 (UP) - Body ground |
Always |
10 kΩ or higher |
|
J12-4 (DOWN) - Body ground |
Always |
10 kΩ or higher |
|
J12-8 (AUTO) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
13. |
READ VALUE USING TECHSTREAM (RR-DOOR MOTOR) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / RR-Door Motor / Data List.
(e) Read the Data List according to the display on the Techstream.
RR-Door Motor (Rear Power Window Regulator Motor Assembly RH)
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
RR Door P/W Auto SW |
Rear RH side power window auto up/down switch signal / ON or OFF |
ON: Rear RH side power window auto switch operated OFF: Rear RH side power window auto switch not operated |
- |
|
RR Door P/W Up SW |
Rear RH side power window manual up switch signal / ON or OFF |
ON: Rear RH side power window manual up switch operated OFF: Rear RH side power window manual up switch not operated |
- |
|
RR Door P/W Down SW |
Rear RH side power window manual down switch signal / ON or OFF |
ON: Rear RH side power window manual down switch operated OFF: Rear RH side power window manual down switch not operated |
- |
OK:
On the Techstream screen, ON or OFF is displayed accordingly.
| OK |
|
|
|
14. |
INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH |
(a) Remove the rear power window regulator switch assembly RH (See page
).
(b) Inspect the rear power window regulator switch assembly RH (See page
).
| NG |
|
|
|
15. |
CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH - REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH) |
(a) Disconnect the I7 rear power window regulator motor assembly LH connector.
(b) Disconnect the I12 rear power window regulator switch assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I7-10 (UP) - Body ground |
Always |
10 kΩ or higher |
|
I7-7 (DOWN) - Body ground |
Always |
10 kΩ or higher |
|
I7-4 (AUTO) - Body ground |
Always |
10 kΩ or higher |
|
I12-5 (UP) - Body ground |
Always |
10 kΩ or higher |
|
I12-4 (DOWN) - Body ground |
Always |
10 kΩ or higher |
|
I12-8 (AUTO) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|