| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Brake | Section: Brake Control/Dynamic Control System | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000001FQO01GX |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DESCRIPTION (2008 LX570) | ||
|
VSC OFF Indicator Light Remains ON |
DESCRIPTION
When the center differential is locked or the VSC OFF switch is operated, VSC control turns off and the VSC OFF indicator illuminates.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
When replacing the master cylinder solenoid, perform zero point calibration
.
PROCEDURE
|
1. |
CHECK DTC |
(a) Check for DTCs
.
Result
|
Result |
Proceed to |
|---|---|
|
DTC is not output. |
A |
|
DTC is output. |
B |
|
|
2. |
INSPECT IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED |
(a) Check the skid control ECU connector connection.
OK:
The connector is securely connected.
|
|
3. |
INSPECT BATTERY |
(a) Check the battery voltage.
Standard Voltage:
11 to 14 V
|
|
4. |
INSPECT SKID CONTROL ECU (EXI TERMINAL) |
|
(a) Disconnect the A24 skid control ECU connector. |
(b) Turn the engine switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A24-27 (EXI) - Body ground |
Center differential free (Center differential lock switch off) (Center differential lock detection switch off) |
11 to 14 V |
|
|
5. |
CHECK CAN COMMUNICATION LINE |
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG) and the Techstream on.
(d) Select "CAN Bus Check" from the System Selection Menu screen, and follow the prompts on the screen to inspect the CAN Bus.
OK:
"CAN Bus Check" indicates no malfunctions in CAN communication.
|
|
6. |
CHECK DTC (for CAN Communication System) |
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG) and the Techstream on.
(d) Check for DTCs
.
Result
|
Result |
Proceed to |
|---|---|
|
CAN system DTC is not output. |
A |
|
CAN system DTC is output. |
B |
|
|
7. |
CHECK OPERATION OF VSC OFF INDICATOR (ACTIVE TEST) |
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG) and the Techstream on.
(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.
(e) Check the condition of the VSC OFF indicator by operating the Techstream.
Combination Meter
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Indicat. Lamp VSC OFF |
VSC OFF Indicator |
Indicator ON/OFF |
- |
OK:
The indicator turns on/off when operating the Techstream.
|
|
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