Vehicle Stability Control System Auto Lsd Indicator Light Remains On
Brake. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK CAN COMMUNICATION SYSTEM
CHECK SKID CONTROL ECU CONNECTOR
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BODY GROUND)
INSPECT TRACTION CONTROL SWITCH (VSC OFF SWITCH)
CHECK HARNESS AND CONNECTOR (VSC OFF SWITCH - SKID CONTROL ECU/BODY GROUND)
INSPECT COMBINATION METER ASSEMBLY
VEHICLE STABILITY CONTROL SYSTEM - AUTO LSD Indicator Light Remains ON |
DESCRIPTION
The AUTO LSD is a system for 2WD vehicles. When the VSC OFF switch is pushed on, the AUTO LSD function is available and the AUTO LSD indicator light illuminates.- HINT:
- The AUTO LSD does not operate even if the VSC OFF switch is pressed under the following conditions:
- The TRC or VSC system is faulty.
- The temperature inside the brake actuator assembly increases and the AUTO LSD operation is suspended.
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- When replacing the brake actuator assembly, perform zero point calibration (RAV4_ACA30 RM000001K1O00SX.html).
| 1.CHECK CAN COMMUNICATION SYSTEM |
Check if a CAN communication system DTC is output (RAV4_ACA30 RM000001W16007X.html).
- Result:
Result
| Proceed to
|
DTC is not output.
| A
|
DTC is output.
| B
|
- OK:
- The connector is securely connected.
| 2.CHECK SKID CONTROL ECU CONNECTOR |
Check if the skid control ECU connector is securely connected.
- OK:
- The connector is securely connected.
| | CONNECT CONNECTOR CORRECTLY |
|
|
| 3.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BODY GROUND) |
Disconnect the skid control ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Switch Condition
| Specified Condition
|
A67-30 (CSW) - Body ground
| VSC OFF switch is not pushed
| 10 kΩ or higher
|
VSC OFF switch is pushed
| Below 1Ω
|
| 4.INSPECT TRACTION CONTROL SWITCH (VSC OFF SWITCH) |
Remove the VSC OFF switch (RAV4_ACA30 RM00000210100AX.html).
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Switch Condition
| Specified Condition
|
6 (E) - 9 (+)
| Not pushed
| 10 kΩ or higher
|
Pushed
| Below 1Ω
|
| | REPLACE TRACTION CONTROL SWITCH (VSC OFF SWITCH) |
|
|
| 5.CHECK HARNESS AND CONNECTOR (VSC OFF SWITCH - SKID CONTROL ECU/BODY GROUND) |
Disconnect the skid control ECU connector.
Disconnect the VSC OFF switch connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
A67-30 (CSW) - E96-9 (+)
| Always
| Below 1 Ω
|
A67-30 (CSW) - Body ground
| Always
| 10 kΩ or higher
|
E96-6 (E) - Body ground
| Always
| Below 1 Ω
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 6.INSPECT COMBINATION METER ASSEMBLY |
Inspect the combination meter (RAV4_ACA30 RM0000020M0001X.html).
