ABS Warning Light Remains ON

BRAKE CONTROL: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: ABS Warning Light Remains ON

ABS Warning Light Remains ON

DESCRIPTION

The ABS warning light illuminates to inform the driver that there is a problem in the ABS.
When DTC output is normal and the ABS warning light remains on, perform troubleshooting as indicated below.

WIRING DIAGRAM









INSPECTION PROCEDURE
NOTE: When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration Initialization.

PROCEDURE

1. CHECK SKID CONTROL ECU (BS1, BS2 VOLTAGE)




(a) Measure the voltage of the connectors.
HINT: Measure the voltage from behind the connector with the connector connected to the skid control ECU.

Standard voltage:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

2. PERFORM ACTIVE TEST USING TECHSTREAM (ABS WARNING LIGHT)
(a) Select the Active Test, generate a control command, and then check that the ABS warning light operates.

ABS / VSC / TRAC:





OK:
The ABS warning light turns on or off.
NG -- REPAIR OR REPLACE COMBINATION METER ASSEMBLY
OK -- REPLACE SKID CONTROL ECU