This procedure is for troubleshooting when the ABS warning light remains on but no DTCs are output.
The skid control ECU (brake actuator assembly) controls the ABS warning light in the combination meter assembly via CAN communication.
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.
Before performing this procedure, depress the brake pedal and confirm that the stop lights illuminate.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Enter the following menus: Chassis / Brake / Utility / Vehicle Control History (RoB).
Using the GTS, check for Vehicle Control History.
| Tester Display |
|---|
| Vehicle Control History (RoB) |
If vehicle control history is stored when the electronically controlled brake system is suspended, the ABS warning light illuminates.
| Result | Proceed to |
|---|---|
| There is no vehicle control history for when the electronically controlled brake system was suspended. | A |
| There is vehicle control history for when the electronically controlled brake system was suspended. | B |
A
B
After performing troubleshooting and repair regarding vehicle control history, clear the vehicle control history.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Enter the following menus: Body Electrical / Combination Meter / Active Test.
Perform the Active Test of the combination meter assembly using the GTS.
| Tester Display |
|---|
| ABS Warning |
Check the combination meter assembly.
The ABS warning light turns on or off in accordance with the GTS operation.
| Proceed to |
|---|
| OK |
| NG |
OK
NG