Toyota Yaris: Vehicle Stability Control System / ABS Warning Light Remains ON
DESCRIPTION
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.
CAUTION / NOTICE / HINT
NOTICE:
-
After replacing the skid control ECU (brake actuator assembly), perform "Calibration".
Click here
-
Before performing this procedure, depress the brake pedal and confirm that the stop lights illuminate.
PROCEDURE
| 1. | CHECK GTS OUTPUT (CAN COMMUNICATION SYSTEM) |
(a) Operate the GTS, and check for DTCs related to the CAN communication system.
Click here
| Result | Proceed to |
| Any CAN communication system relating DTCs are output | A |
| None of the above conditions are met | B |
| A |
| INSPECT CAN COMMUNICATION SYSTEM |
|
B |
| |
| 2. | INSPECT COMBINATION METER ASSEMBLY |
(a) Perform the Active Test of the combination meter assembly using the GTS.
Body Electrical > Combination Meter > Active Test
| Tester Display |
| ABS Warning |
(b) Check the combination meter assembly.
OK:
The ABS warning light turns on or off in accordance with the GTS operation.
| OK |
| REPLACE BRAKE ACTUATOR ASSEMBLY |
| NG |
| INSPECT METER / GAUGE SYSTEM |
DESCRIPTION The skid control ECU (brake actuator assembly) receives signals from the ECM, steering sensor and airbag sensor assembly via CAN communication...
DESCRIPTION The skid control ECU (brake actuator assembly) controls the ABS warning light in the combination meter assembly via CAN communication. CAUTION / NOTICE / HINT NOTICE: After replacing the skid control ECU (brake actuator assembly), perform "Calibration"...
Other information:
INSPECTION PROCEDURE 1. INSPECT CLUTCH DISC ASSEMBLY (a) Using a vernier caliper, measure the rivet head depth. Minimum Rivet Head Depth: 0.3 mm (0.0118 in.) If necessary, replace the cover and disc clutch set.
*a Facing *b Rivet (b) Install the clutch disc assembly to the manual transaxle assembly...
These lights turn on or flash to notify the user of the system operation
status or a system malfunction.
KEY
Indicator Light
Wrench Indicator Light
TCS/DSC
Indicator Light
DSC OFF
Indicator Light
Low
Speed Pre-Collision System Indicator Light
Low
Speed Pre-Collision System OFF Indicator Light
Low
Engine Coolant Temperature Indicator Light
Shift
Position Indication
Headlight High-Beam Indicator Light
Turn
Signal/Hazard Warning Indicator Lights
Security Indicator Light
Cruise
Main Indication
Cruise
Set Indication/Indicator Light
Select
Mode Indicator Light
Lights-On Indicator Light
Front
Passenger Air Bag Deactivation Indicator Light
* 1: The light turns on when the ignition is switched on for
an operation check,
and turns off a few seconds later or when the engine is started...
Categories
WARNING
When removing the fuel-filler cap, loosen the cap slightly and wait
for
any hissing to stop, then remove it
Fuel spray is dangerous. Fuel can burn skin and eyes and cause illness
if
ingested. Fuel spray is released when there is pressure in the fuel tank and
the fuel-filler cap is removed too quickly.
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