RM36D0EC _54 Brake _083081 PARKING BRAKE _0401025 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.

CAUTION / NOTICE / HINT

NOTICE:
·

The electric parking brake may still operate up to 20 seconds after the ignition switch is turned off. Before disconnecting connectors or fuses, turn the ignition switch off and wait 20 seconds or more.

·

After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.

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

·

When replacing the skid control ECU (brake actuator assembly), operate the electric parking brake switch (integration control and panel assembly) as the parking brake indicator light blinks when the ignition switch is first turned to ON.



PROCEDURE

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

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Enter the following menus: Chassis / Brake/EPB / Utility / Vehicle Control History (RoB).


d.

Using the GTS, check for Vehicle Control History.

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

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

If vehicle control history 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 for when the electric parking brake system was suspended. A
There is vehicle control history for when the electric parking brake system was suspended. B



A

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

B

PERFORM TROUBLESHOOTING AND REPAIR REGARDING VEHICLE CONTROL HISTORY
NOTICE:

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

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



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

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Enter the following menus: Body Electrical / Combination Meter / Active Test.


d.

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

for GTMC Made: Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for GTMC Made)>DATA LIST / ACTIVE TEST

for SFTM Made: Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for SFTM Made)>DATA LIST / ACTIVE TEST

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

e.

Check the combination meter assembly.

OK:

The brake system warning light (yellow indicator) turns on or off in accordance with the 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 GTMC Made: Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for GTMC Made)>HOW TO PROCEED WITH TROUBLESHOOTING

for SFTM Made: Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for SFTM Made)>HOW TO PROCEED WITH TROUBLESHOOTING