DESCRIPTION When the electronically controlled brake system is operating, as the input piston and output piston are not directly connected, the kickback of the brake pedal is minimal during ABS operation and the driver may not notice that ABS operated. CAUTION / NOTICE / HINT NOTICE: After replacing the skid control ECU (brake booster with master cylinder assembly), perform linear solenoid valve offset learning, ABS holding solenoid valve learning, yaw rate and acceleration sensor zero point calibration and system information memorization after performing "Reset Memory". Click here PROCEDURE
(a) Check if the slip indicator light was illuminated or blinking when ABS did not operate. HINT:
(a) Using the Techstream, check DTCs and Freeze Frame Data. Click here Chassis > ABS/VSC/TRAC > Trouble Codes
(a) Check that ABS operates using a drum tester or equivalent. CAUTION: When using a drum tester, enter Inspection Mode or VSC off mode and perform inspection with the TRAC and VSC systems disabled to prevent the vehicle from moving suddenly due to TRAC or VSC operation. Click here OK: ABS operates.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Instrument Panel Speaker: Inspection
INSPECTION PROCEDURE 1. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY (for 8 Speakers) (a) With the speaker installed, check that there is no looseness or other abnormalities. (b) Check that there is no foreign matter in the speaker, no tears on the speaker cone or other abnormalities. (c) Measure the resist ...