Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: 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 here

Chassis > Brake/EPB > Utility

Tester Display

Signal Check

NOTICE:

  • When cleaning the front speed sensor and rear sped sensor, 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.

OK:

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

Result

Proceed to

OK (for Front)

A

OK (for Rear)

B

NG

C

A

CLEAN FRONT SPEED SENSOR AND FRONT SPEED SENSOR ROTOR

B

CLEAN REAR SPEED SENSOR AND REAR SPEED SENSOR ROTOR

C

INSPECT AND REPAIR MALFUNCTIONING SPEED SENSOR CIRCUIT

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