DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK CAN COMMUNICATION SYSTEM
CHECK MULTIPLEX COMMUNICATION SYSTEM
CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED
CHECK BATTERY
INSPECT COMBINATION METER ASSEMBLY
VEHICLE STABILITY CONTROL SYSTEM (w/o VDIM) - VSC Warning Light Remains ON
DESCRIPTION
The skid control ECU is connected to the combination meter via CAN and multiplex communications.
If the ECU stores a DTC, the master caution indicator light will come on and the DTC will be displayed on the multi information display in the combination meter.
WIRING DIAGRAM
INSPECTION PROCEDURE
- When replacing the brake actuator assembly, perform zero point calibration .
| 1.CHECK CAN COMMUNICATION SYSTEM |
Check if the CAN communication system DTC is output ( for LHD (gasoline), for RHD (gasoline), for LHD (diesel), or for RHD (diesel)).
- Result:
| Condition | Proceed to |
| DTC is not output | A |
| DTC is output | B |
| | INSPECT CAN COMMUNICATION SYSTEM |
|
|
| 2.CHECK MULTIPLEX COMMUNICATION SYSTEM |
Check if the multiplex communication system DTC is output .
- Result:
| Condition | Proceed to |
| DTC is not output | A |
| DTC is output | B |
| | INSPECT MULTIPLEX COMMUNICATION SYSTEM |
|
|
| 3.CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED |
Check if the skid control ECU connector is securely connected.
- OK:
- The connector should be securely connected.
| | CONNECT CONNECTOR TO ECU CORRECTLY |
|
|
Check the battery voltage.
- Standard voltage:
- 11 to 14 V
| | CHECK AND REPLACE CHARGING SYSTEM OR BATTERY |
|
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| 5.INSPECT COMBINATION METER ASSEMBLY |
Perform Active Test of the combination meter (meter CPU) using the intelligent tester .
- OK:
- The VSC warning (multi information display and master caution indicator light) light turns on or off in accordance with the intelligent tester.
- If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part .
| | REPLACE COMBINATION METER ASSEMBLY |
|
|
| OK | |
| |
| REPLACE BRAKE ACTUATOR ASSEMBLY |
|
LEXUS IS250, IS220d / GSE20 ALE20