DESCRIPTION The main body ECU (multiplex network body ECU) receives a luggage compartment door open/closed signal from luggage compartment door courtesy light switch (luggage compartment door lock assembly). WIRING DIAGRAM  CAUTION / NOTICE / HINT NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Click here PROCEDURE
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Main Body / Data List. (e) Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List
OK: Normal conditions listed above are displayed.
(a) Remove the luggage compartment door courtesy light switch (luggage compartment door lock assembly). Click here (b) Inspect the luggage compartment door courtesy light switch (luggage compartment door lock assembly). Click here
(a) Disconnect the 4H instrument panel junction block assembly connector. (b) Measure the resistance according to the value (s) in the table below. Standard Resistance:
(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Click here (b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Airbag System(for Gasoline Model): Short in Rear Side Squib LH Circuit (B1855-B1858)
DESCRIPTION The rear side squib LH circuit consists of the airbag ECU assembly and rear seat airbag assembly LH. The airbag ECU assembly uses this circuit to deploy the airbag when deployment conditions are met. These DTCs are stored when a malfunction is detected in the rear side squib LH circuit. ...
