Terminals Of Ecu

WARNING: This page is about a different car, the 2003 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DRIVER SIDE JUNCTION BLOCK ASSY (BODY ECU)

Fig 1: Identifying Driver Side Junction Block Assy (Body ECU)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the IB, IE, IF, IH and IL J/B connectors.
2. Check the voltage or continuity of each terminal of the wire harness side connectors.
  Standard:
  
  Fig 2: Specified Condition Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, there may be a malfunction on the wire harness side.
CHECK THEFT WARNING ECU ASSY (THEFT DETERRENT ECU)

Fig 3: Identifying Theft Warning ECU Terminals (Theft Deterrent ECU)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the T5 ECU connector.
2. Check the voltage or continuity of each terminal of the wire harness side connector.
  Standard:
  
  Fig 4: T5 ECU Connector Voltage Or Continuity Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, there may be a malfunction on the wire harness side.
CHECK MULTIPLEX NETWORK DOOR ECU BACK (BACK DOOR ECU)

Fig 5: Identifying Multiplex Network Door ECU Back (Back Door ECU)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the B8 ECU connector.
2. Check the voltage or continuity of each terminal of the wire harness side connector.
  Standard:
  
  Fig 6: B8 ECU Connector Voltage Or Continuity Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, there may be a malfunction on the wire harness side.