ABS Warning Light does not Come ON

ANTI-LOCK BRAKE SYSTEM:

ABS Warning Light does not Come ON

DESCRIPTION

If the ECU detects trouble, it will prohibit ABS control, turn on the ABS warning light, and store the DTC.
Connect terminals TC and CG of the DLC3 to make the ABS warning light blink and output the DTC.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT ABS WARNING LIGHT
(a) WHEN USING TECHSTREAM:
(1) Connect Techstream to the DLC3.
(2) Start the engine.
(3) Select the item "ABS Warning Light" in the Active Test and operate the ABS warning light on Techstream.

ABS / VSC / TRAC:





(4) Check that "ON" and "OFF" of the ABS warning light can be shown on the combination meter by Techstream.
OK:
Turn the ABS warning light ON or OFF in accordance with Techstream.
(b) WHEN NOT USING TECHSTREAM:





(1) Turn the ignition switch off and disconnect the skid control ECU connector.
(2) Using service wire, connect terminals WA and GND of the skid control ECU harness side connector.
(3) Turn the ignition switch to the ON position.
(4) Check that the ABS warning light.
OK:





NG -- CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER)
OK -- REPLACE BRAKE ACTUATOR ASSEMBLY
2. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER)





(a) Disconnect the skid control ECU connector and combination meter connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. CHECK COMBINATION METER ASSEMBLY
(a) Check if the indicators (shift position, airbag, etc.) other than ABS warning indicator operate normally.
Result:





B -- CHECK COMBINATION METER ASSEMBLY (COMBINATION METER CIRCUIT)
A -- REPAIR OR REPLACE COMBINATION METER ASSEMBLY