Components
COMPONENTS
ILLUSTRATION
*1 | MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY |
*2 | MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WITH FRONT DOOR UPPER ARMREST BASE PANEL |
Inspection
INSPECTION
PROCEDURE
1. INSPECT MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
(a) Check that the LEDs illuminate. (1) Apply auxiliary battery voltage to the multiplex network master switch assembly and check that the LEDs illuminate. OK:
If the result is not as specified, replace the multiplex network master switch assembly. |
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Installation
INSTALLATION
PROCEDURE
1. INSTALL MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
(a) Install the multiplex network master switch assembly with the 3 screws.
2. INSTALL MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WITH FRONT DOOR UPPER ARMREST BASE PANEL
Click here
Removal
REMOVAL
PROCEDURE
1. REMOVE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WITH FRONT DOOR UPPER ARMREST BASE PANEL
Click here
2. REMOVE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
(a) Remove the 3 screws and multiplex network master switch assembly. |
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Smart Key System(for Start Function, Hv Model): System Voltage or GND Energization Malfunction (B228B). Short to GND in Immobiliser System Power Source Circuit (B278A). Malfunction of ID-BOX Recognition (B278D)
System Voltage or GND Energization Malfunction (B228B) DESCRIPTION This DTC is stored when there is a malfunction in the certification ECU (smart key ECU assembly) auxiliary battery power supply circuit or ground circuit. DTC No. Detection Item DTC Detection Condition Trouble Area Note B228B System ...