DESCRIPTION Troubleshooting for when ABS operates too soon due to a noisy signal from the speed sensor, a difference in output, etc. PROCEDURE
(a) Using the Techstream, perform a Test Mode (Signal Check) inspection sensor check and check that speed sensor Test Mode (Signal Check) inspection items change from incomplete to complete. Click here Chassis > ABS/VSC/TRAC > Utility
OK: Speed sensor Test Mode (Signal Check) inspection items change from incomplete to complete.
NOTICE:
HINT: The rear speed sensor and rear speed sensor rotor are incorporated into the rear axle hub and bearing assembly. If the rear speed sensor and rear speed sensor rotor need to be replaced, replace the rear axle hub and bearing assembly.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Sfi System: ACIS Control Circuit
DESCRIPTION ACIS (Acoustic Control Induction System) controls the opening and closing the intake air control valve sub-assembly built into the intake air surge tank assembly to increase the intake efficiency according to the engine load. When the engine speed is between 0 and 4300 rpm and the thrott ...