- Connect the positive (+) battery cable to terminal 2 (B), and connect the negative (-) battery cable to terminal 1 (GND), and keep them connected for 3 seconds or more.
- With terminals 2 (B) and 1 (GND) connected, connect the negative (-) battery cable to terminal 10 (UP).
- Disconnect and reconnect the negative (-) battery cable to terminal 10 (UP) within 1 second.
| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Vehicle Exterior | Section: Window/Glass | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000000XHI01FX |
| Title: WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: DESCRIPTION (2008 LX570) | ||
|
Driver Side Power Window does not Operate with Power Window Master Switch |
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
INSPECTION PROCEDURE
PROCEDURE
|
1. |
CHECK LIN COMMUNICATION SYSTEM |
(a) Check for LIN communication system DTCs related to the power window control system
.
OK:
LIN communication system DTCs are not output.
|
|
2. |
CHECK FOR DTC (B2312) |
(a) Check if DTC B2312 is output
.
OK:
DTC B2312 is not output.
|
|
3. |
READ VALUE USING TECHSTREAM (FRONT POWER WINDOW REGULATOR MOTOR LH) |
(a) Use the Data List to check if the power window regulator motor is functioning properly
.
D-Door Motor
|
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:
Techstream display changes according to operation of multiplex network master switch.
|
|
4. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH - BATTERY AND BODY GROUND) |
|
(a) Disconnect the I11 switch connector. |
(b) Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I11-11 (B) - Body ground |
Always |
11 to 14 V |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I11-12 (GND) - Body ground |
Always |
Below 1 Ω |
|
|
5. |
CHECK HARNESS AND CONNECTOR (FRONT POWER WINDOW REGULATOR MOTOR LH - BATTERY AND BODY GROUND) |
|
(a) Disconnect the I12 motor connector. |
(b) Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I12-2 (B) - Body ground |
Always |
11 to 14 V |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I12-1 (GND) - Body ground |
Always |
Below 1 Ω |
|
|
6. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH - FRONT POWER WINDOW REGULATOR MOTOR LH) |
|
(a) Disconnect the I11 switch connector. |
(b) Disconnect the I12 motor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I11-20 (UP) - I12-10 (UP) |
Always |
Below 1 Ω |
|
I11-15 (DOWN) - I12-7 (DOWN) |
Always |
Below 1 Ω |
|
I11-20 (UP) or I12-10 (UP) - Body ground |
Always |
10 kΩ or higher |
|
I11-15 (DOWN) or I12-7 (DOWN) - Body ground |
Always |
10 kΩ or higher |
|
|
7. |
INSPECT FRONT POWER WINDOW REGULATOR MOTOR LH |
(a) Remove the motor
.
(b) Apply positive (+) battery voltage to connector terminal 2 (B).
NOTICE:
- Do not apply positive (+) battery voltage to any terminals, except terminal 2 (B), to avoid damaging the pulse sensor inside the motor.
- Reset the power window regulator motor (initialize the pulse sensor) after installing the power window regulator motor and regulator assembly onto the door.
(c) Apply negative (-) battery voltage to connector terminals 1 (GND), and 7 (DOWN) or 10 (UP).
(d) Check that the motor gear rotates smoothly as follows.
OK:
|
Measurement Condition |
Specified Condition |
|---|---|
|
|
Motor gear rotates clockwise (Up) |
|
Motor gear rotates counterclockwise (Down) |
|
|
|