| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Brake | Section: Brake Control/Dynamic Control System | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM0000028G5005X |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: WIRING DIAGRAM (2008 Sequoia) | ||
|
AUTO LSD Indicator Light does not Come ON |
WIRING DIAGRAM
Refer to AUTO LSD Indicator Light Remains ON
.
INSPECTION PROCEDURE
NOTICE:
When replacing the VSC actuator assembly, perform zero point calibration
.
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check if a CAN communication system DTC is output
.
Result
|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
|
DTC is output |
B |
|
|
2. |
CHECK CONNECTOR CONNECTION CONDITION |
(a) Check the skid control ECU connector connection condition.
OK:
The connector is securely connected.
|
|
3. |
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BATTERY AND BODY GROUND) |
|
(a) Disconnect the A19 ECU connector. |
(b) Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
A19-9 (IG1) - Body ground |
Ignition switch ON |
11 to 14 V |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A19-1 (GND1) - Body ground |
Always |
Below 1 Ω |
|
|
4. |
PERFORM ACTIVE TEST USING TECHSTREAM (AUTO LSD INDICATOR LIGHT) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream ON.
(d) Select the Active Test mode and operate the AUTO LSD indicator light using the Techstream.
ABS/VSC/TRAC
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Auto LSD Indicator Light |
AUTO LSD indicator light |
Indicator light ON/OFF |
Observe combination meter |
(e) Check that the AUTO LSD indicator light turns on and off in the combination meter when using the Techstream.
OK:
The AUTO LSD indicator light turns ON and OFF in accordance with the Techstream operation.
|
|
5. |
INSPECT VSC OFF SWITCH |
|
(a) Remove the VSC OFF switch
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
6 - 9 |
Switch is pressed |
Below 1 Ω |
|
Switch is not pressed |
10 kΩ or higher |
|
|
6. |
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH AND BODY GROUND) |
|
(a) Disconnect the A19 ECU connector. |
(b) Disconnect the H29 switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A19-13 (CSW) - H29-9 |
Always |
Below 1 Ω |
|
A19-13 (CSW) - Body ground |
Always |
10 kΩ or higher |
|
H29-6 - Body ground |
Always |
Below 1 Ω |
|
|
|