Main Body Ecu
Removal REMOVAL PROCEDURE
1. REMOVE UPPER INSTRUMENT PANEL
HINT:
Refer to the procedure up to Remove Upper Instrument Panel Sub-assembly (See page
).
2. REMOVE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the 4 connectors. |
![]() |
(b) Disengage the 2 claws and disconnect the connector <A> as shown in the illustration. |
![]() |
(c) Disconnect the 3 connectors.
(d) Disconnect the 3 connectors as shown in the illustration. |
![]() |
(e) Disconnect the connector <A> as shown in the illustration. |
![]() |
(f) Disconnect the connector.
(g) Disconnect the 2 connectors. |
![]() |
(h) Remove the 3 nuts. |
![]() |
(i) Disengage the 2 claws.
(j) Disconnect the connector <A> as shown in the illustration. |
![]() |
(k) Disconnect the 4 connectors and remove the main body ECU (driver side junction block assembly).
(l) Remove the 5 relays. |
![]() |
1. INSTALL MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Install the 5 relays. |
![]() |
(b) Connect the 4 connectors. |
![]() |
(c) Connect the connector <A> as shown in the illustration.
NOTICE:
Be sure to engage each connector securely.
(d) Engage the 2 claws. |
![]() |
(e) Install the 3 nuts and install the main body ECU (driver side junction block assembly).
(f) Connect the 2 connectors. NOTICE: Be sure to engage the connector securely. |
![]() |
(g) Connect the connector <A> as shown in the illustration. NOTICE: Be sure to engage the connector securely. |
![]() |
(h) Connect the connector.
NOTICE:
Be sure to engage each connector securely.
(i) Connect the 3 connectors as shown in the illustration. NOTICE: Be sure to engage each connector securely. |
![]() |
(j) Engage the 2 claws to connect the connector <A> as shown in the illustration. NOTICE: Be sure to engage the connector securely. |
![]() |
(k) Connect the 3 connectors.
NOTICE:
Be sure to engage each connector securely.
(l) Connect the 4 connectors. NOTICE: Be sure to engage each connector securely. |
![]() |
2. INSTALL UPPER INSTRUMENT PANEL
HINT:
Refer to the procedure from Install Upper Instrument Panel Sub-assembly (See page
).
Test yourself
A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.










.png)
.png)



.png)