Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Electronically Controlled Brake System(for Hv Model): Open Circuit in ABS Motor Relay Circuit (C146C,C146D)
DESCRIPTION The ABS motor relay is built into the brake booster with master cylinder assembly. During ABS, TRAC, VSC, brake hold, secondary collision brake or brake assist operation, the skid control ECU (brake booster with master cylinder assembly) turns on the ABS motor relay to run the pump motor ...
