DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK CAN COMMUNICATION SYSTEM
CHECK MULTIPLEX COMMUNICATION SYSTEM
CHECK ABS WARNING LIGHT
INSPECT COMBINATION METER ASSEMBLY
VEHICLE STABILITY CONTROL SYSTEM (w/o VDIM) - ABS Warning Light does not Come ON
DESCRIPTION
The skid control ECU is connected to the combination meter via CAN and multiplex communications.
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 |
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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 |
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3.CHECK ABS WARNING LIGHT |
Disconnect the skid control ECU connector.
Turn the engine switch on (IG).
Check that the ABS warning light comes on.
- OK:
- ABS warning light comes on.
- 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 BRAKE ACTUATOR ASSEMBLY |
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4.INSPECT COMBINATION METER ASSEMBLY |
Turn the engine switch off.
Reconnect the skid control ECU connector.
Perform Active Test of the combination meter (meter CPU) using the intelligent tester .
- OK:
- The ABS warning 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 .
| REPLACE COMBINATION METER ASSEMBLY |
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OK | |
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REPLACE BRAKE ACTUATOR ASSEMBLY |
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LEXUS IS250, IS220d / GSE20 ALE20