RM38N0EC _54 Brake _111818 PARKING BRAKE _0501134 ELECTRIC PARKING BRAKE SYSTEM(for Gasoline Model) J

PARKING BRAKE  ELECTRIC PARKING BRAKE SYSTEM(for Gasoline Model)  Brake Warning Light (Yellow) Remains On  


DESCRIPTION

This procedure is for troubleshooting when the brake system warning light (yellow indicator) remains on but no DTCs are output.

The skid control ECU (brake actuator assembly) controls the brake system warning light (yellow indicator) in the combination meter assembly via CAN communication.

PROCEDURE

1.CHECK VEHICLE CONTROL HISTORY (RoB) (ELECTRIC PARKING BRAKE SYSTEM)
a.

Using the GTS, check for Vehicle Control History (RoB).

Chassis > Brake/EPB > Utility
Tester Display
Vehicle Control History (RoB)
50005 435 55
HINT:

If vehicle control history (RoB) is stored when the electric parking brake system is suspended, the brake system warning light (yellow indicator) illuminates.



Result:
Result Proceed to
There is no vehicle control history (RoB) for when the electric parking brake system was suspended. A
There is vehicle control history (RoB) for when the electric parking brake system was suspended. B



A

2.INSPECT COMBINATION METER ASSEMBLY (BRAKE SYSTEM WARNING LIGHT (YELLOW INDICATOR))

B

ERFORM TROUBLESHOOTING AND REPAIR REGARDING VEHICLE CONTROL HISTORY

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>VEHICLE CONTROL HISTORY (RoB)

NOTICE:

After performing troubleshooting and repair regarding vehicle control history, clear the vehicle control history.



2.INSPECT COMBINATION METER ASSEMBLY (BRAKE SYSTEM WARNING LIGHT (YELLOW INDICATOR))
a.

Perform the Active Test of the combination meter assembly using the GTS.

Body Electrical > Combination Meter > Active Test
Tester Display
ECB Warning
50004 409 110

b.

Check the combination meter assembly.

OK:

The brake system warning light (yellow indicator) turns on or off in accordance with GTS operation.



Result:
Proceed to
OK
NG



OK

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for Gasoline Model)>REMOVAL


NG

INSPECT METER / GAUGE SYSTEM

for Optitron Meter Type: Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for Optitron Meter Type)>HOW TO PROCEED WITH TROUBLESHOOTING

for TFT Meter Type: Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for TFT Meter Type)>HOW TO PROCEED WITH TROUBLESHOOTING