| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Vehicle Exterior | Section: Door/Hatch | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM0000025WR003X |
| Title: DOOR / HATCH: POWER BACK DOOR SYSTEM: DESCRIPTION (2008 LX570) | ||
|
Door Control Switch Circuit |
DESCRIPTION
The back door control switch only turns on while the switch is being pressed, and turns off when the switch is released.
When the back door control switch is on, a power back door close request signal is input to the power back door ECU to close the back door.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (BACK DOOR CONTROL SWITCH) |
(a) Check the Data List for proper functioning of the back door control switch.
Back Door
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
PBD Close SW |
Back door control switch signal/ON or OFF |
ON: Back door control switch on OFF: Back door control switch off |
- |
OK:
The display is as specified in the normal condition.
|
|
2. |
INSPECT BACK DOOR CONTROL SWITCH |
(a) Remove the back door control switch
.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
3 - 4 |
Pushed (on) |
Below 1 Ω |
|
3 - 4 |
Not pushed (off) |
10 kΩ or higher |
|
|
3. |
CHECK HARNESS AND CONNECTOR (SWITCH - UNIT AND BODY GROUND) |
(a) Disconnect the S22 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 |
|---|---|---|
|
S22-3 - L36-4 (DS1) |
Always |
Below 1 Ω |
|
S22-4 - Body ground |
Always |
Below 1 Ω |
|
S22-3 - Body ground |
Always |
10 kΩ or higher |
|
|
|