ABS Warning Light does not Come ON

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: ABS Warning Light does not Come ON

ABS Warning Light does not Come ON

DESCRIPTION

If the ECU detects trouble, it illuminates the ABS warning light while at the same time prohibiting ABS control.
At this time, the ECU records a DTC in its memory.
Connecting terminals TC and CG of the DLC3 causes the ECU to display 2-digit DTCs by blinking the ABS warning light.

WIRING DIAGRAM









INSPECTION PROCEDURE

NOTE: When replacing the master cylinder solenoid, perform zero point calibration (Programming and Relearning).

PROCEDURE

1. CHECK ABS WARNING LIGHT
(a) Disconnect the skid control ECU connector.
(b) Turn the ignition switch to the ON position.
(c) Check that the ABS warning light comes on.
OK:
ABS warning light comes on.
(d) Turn the ignition switch to OFF.
(e) Reconnect the skid control ECU connector.
OK -- REPLACE MASTER CYLINDER SOLENOID
NG -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER)





(a) Disconnect the skid control ECU connector.
(b) Disconnect the combination meter connector.
(c) Measure the resistance.
Standard:





(d) Reconnect the combination meter connector.
(e) Reconnect the skid control ECU connector.
NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
3. INSPECT COMBINATION METER ASSEMBLY
(a) Check the combination meter system (Problem Symptoms Table).
OK:
Combination meter is normal.
NG -- REPLACE COMBINATION METER ASSEMBLY
OK -- CHECK FOR INTERMITTENT PROBLEMS