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Terminals Of Ecu

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Terminals Of ECU
G03376322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ECU TERMINALS

Symbols (Terminal No.) Wiring Color Condition STD Voltage (V)
R6-1 - R6-3 (SIG - ES) LG-R - BR Ignition switch OFF or ACC Below 1 V
R6-2 (MPX) P-L Multiplex communication circuit -
R6-3 - Body ground (ES - Body ground) BR - Body
ground
Constant Below 1 V