DESCRIPTION
If the manual up/down function does not operate, there may be a malfunction in the multiplex network master switch, power window regulator motor, harness or connector.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
Note
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 Click here.
If the front power window regulator motor assembly LH has been replaced with a new one, initialize the power window control system Click here.
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
CHECK LIN COMMUNICATION SYSTEM
Check for LIN communication system DTCs related to the power window control system Click here.
| OK |
|---|
| LIN communication system DTCs are not output. |
| NG |
|
GO TO LIN COMMUNICATION SYSTEM Click here |
| OK |
|
CHECK FOR DTC (B2312)
Check if DTC B2312 is output Click here.
| OK |
|---|
| DTC B2312 is not output. |
| NG |
|
GO TO DTC B2312 Click here |
| OK |
|
READ VALUE USING INTELLIGENT TESTER (POWER WINDOW REGULATOR MOTOR)
Use the Data List to check if the power window regulator motor is functioning properly Click here.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| D Door P/W Up SW | Driver side power window manual up signal / ON or OFF | ON: Driver side power window manual up switch operated OFF: Driver side power window switch not operated |
- |
| D Door P/W Down SW | Driver side power window manual down signal / ON or OFF | ON: Driver side power window manual down switch operated OFF: Driver side power window switch not operated |
- |
| OK |
|---|
| Display changes according to operation of multiplex network master switch. |
| Result | Proceed to |
|---|---|
| NG | A |
| OK (for LHD) | B |
| OK (for RHD) | C |
| B |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here |
| C |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here |
| A |
|
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH - BATTERY AND BODY GROUND)
Disconnect the I11*1 or I22*2 switch connector.
Measure the voltage and resistance according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
||||||
|
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
||||||
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (FRONT POWER WINDOW REGULATOR MOTOR - BATTERY AND BODY GROUND)
Disconnect the I12*1 or I4*2 motor connector.
Measure the voltage and resistance according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
||||||
|
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
||||||
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH - FRONT POWER WINDOW REGULATOR MOTOR)
Disconnect the I11*1 or I22*2 switch connector.
Disconnect the I12*1 or I4*2 motor connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||
|
| Result | Proceed to |
|---|---|
| NG | A |
| OK (for LHD) | B |
| OK (for RHD) | C |
| A |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| C |
|
INSPECT FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here |
| B |
|
INSPECT FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH
Remove the front power window regulator motor LH Click here.
Inspect the front power window regulator motor LH Click here.
| OK |
|
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here |
| NG |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here |
INSPECT FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH
Remove the front power window regulator motor RH Click here.
Inspect the front power window regulator motor RH Click here.
| OK |
|
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here |
| NG |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here |