Terminals Of Ecu

WARNING: This page is about a different car, the 2003 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.

CHECK MULTIPLEX NETWORK BODY ECU (BODY ECU)

Fig 1: Identifying Multiplex Network Body ECU Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the B9, B10 and B12 ECU connectors, and check the voltage or continuity of each terminal of the wire harness side connector.
  Standard:
  
  Fig 2: Multiplex Network Body ECU Connector Terminals Reference Table (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, there may be a malfunction the wire harness side.
2. Reconnect the B9, B10 and B12 ECU connectors, and check the voltage of each terminal of the connector.
  Standard:
  
  Fig 3: Multiplex Network Body ECU Connector Terminals Reference Table (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, the theft warning ECU assy may malfunction.