REASSEMBLY PROCEDURE 1. INSTALL VACUUM WARNING SWITCH ASSEMBLY (a) Install a new check valve grommet to the brake booster assembly. (b) Install the vacuum warning switch assembly to the brake booster assembly as shown in the illustration. 
2. INSTALL BRAKE VACUUM CHECK VALVE ASSEMBLY (a) Install a new check valve grommet to the brake booster assembly. (b) Install the brake vacuum check valve assembly to the brake booster assembly. |
Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Electronically Controlled Brake System(for Hv Model): Open Circuit in ABS Solenoid Relay Circuit (C146E,C146F)
DESCRIPTION The ABS solenoid relay built into the skid control ECU (brake booster with master cylinder assembly) supplies power to the holding solenoid and reduction solenoid. The ABS solenoid relay is operated 1.5 seconds after the power switch is turned on (IG), and is turned off if an open or sho ...
