RM38N0EC _54 Brake _111814 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0503031 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model) J

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model)  ABS Operates Before Necessary When Braking  


DESCRIPTION

Troubleshooting for when ABS operates too soon due to a noisy signal from the speed sensor, a difference in output, etc.

PROCEDURE

1.PERFORM DEALER MODE (SIGNAL CHECK) INSPECTION (SPEED SENSOR CHECK)
a.

Using the GTS, perform a Dealer Mode (Signal Check) inspection sensor check and check that speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete.

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

Chassis > Brake/EPB > Utility
Tester Display
Signal Check
50005 435 4558
OK:

Speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete.


NOTICE:
·

When cleaning the front speed sensor and rear speed sensor (for AWD), make sure to clean the installation hole before installation.

·

Do not use parts cleaner when cleaning the front speed sensor rotor and rear speed sensor rotor (for AWD).



HINT:

The rear speed sensor (for 2WD) and rear speed sensor rotor are incorporated into the rear axle hub and bearing assembly.

If the rear speed sensor (for 2WD) and rear speed sensor rotor need to be replaced, replace the rear axle hub and bearing assembly.



Result:
Result Proceed to
OK (for Front, Rear (AWD)) A
OK (for Rear (2WD)) B
NG C



A

CLEAN SPEED SENSOR AND SPEED SENSOR ROTOR

B

REPLACE REAR SPEED SENSOR

Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE HUB (for 2WD)>REMOVAL


C

INSPECT AND REPAIR MALFUNCTIONING SPEED SENSOR CIRCUIT