Toyota 82730-0T040
Junction Block, Driver Side

Installation of the Main Body ECU (Driver Side Junction Block Assembly) requires first installing five relays followed by connection of four connectors. Install connector [A] according to the illustration by fitting it securely into all positions. Secure the Main Body ECU by attaching the 3 nuts while using the engagement process on the 2 claws. Secure the connections for the 2 first then proceed to engage connector [A] with identical safety measures. Alternative installation should proceed by securing all remaining connectors while verifying their correct engagement. Conclude the setup by connecting the three connectors according to the diagram then use the two claws to lock connector [A] before safely installing the last four connectors. You must perform the Upper Instrument Panel Sub-assembly installation according to proper procedure.

The removal process of the Main Body ECU (Driver Side Junction Block Assembly) starts with disassembly of the upper instrument panel. Begin by detachment of four connectors followed by unfastening the two claws before disconnecting connector [A]. The removal process begins with disconnecting the first set of 3 connectors before moving on to the second stage of 3 connector removals according to the diagram. Unplug connector [A] first before disconnecting the other connectors along with their 2 additional counterparts. After removing the 3 nuts, you can disengage the 2 claws and disconnect connector [A] a second time. The main body ECU (Driver Side Junction Block Assembly) and its accompanying 5 relays can be detached after disconnecting all the 4 connectors.