| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Vehicle Exterior | Section: Door/Hatch | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM0000025WP003X |
| Title: DOOR / HATCH: POWER BACK DOOR SYSTEM: DESCRIPTION (2008 LX570) | ||
|
Main Switch Circuit |
DESCRIPTION
The power back door main switch only turns off while the switch is being pressed, and turns on when the switch is released.
When the switch is on, a power back door operation request signal is input to the power back door ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (POWER BACK DOOR MAIN SWITCH) |
(a) Check the Data List for proper functioning of the power back door main switch.
Back Door
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
PBD Main SW |
Power back door main switch/ON or OFF |
ON: Power back door main switch not pushed OFF: Power back door main switch is pushed |
- |
OK:
The display is as specified in the normal condition.
|
|
2. |
INSPECT POWER BACK DOOR MAIN SWITCH |
(a) Remove the power back door main switch
.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
3 (MSE) - 6 (MSW) |
Not pushed (on) |
Below 1 Ω |
|
3 (MSE) - 6 (MSW) |
Pushed (off) |
10 kΩ or higher |
|
|
3. |
CHECK HARNESS AND CONNECTOR (SWITCH - UNIT AND BODY GROUND) |
(a) Disconnect the E80 switch connector.
(b) Disconnect the L36 unit connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E80-6 (MSW) - L36-17 (MSW) |
Always |
Below 1 Ω |
|
E80-3 (MSE) - Body ground |
Always |
Below 1 Ω |
|
E80-6 (MSW) - Body ground |
Always |
10 kΩ or higher |
|
|
|