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 > Safety Connect System(for Hv Model): Telephone Microphone Error (B1572)
DESCRIPTION This DTC is set when the DCM (Telematics Transceiver) detects a malfunction in the telephone microphone assembly circuit. DTC No. Detection Item DTC Detection Condition Trouble Area B1572 Telephone Microphone Error Current of MCVD reaches malfunction criteria for 10 seconds while power s ...
