Terminals Of Ecu

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DRIVER SIDE JUNCTION BLOCK ASSY (BODY ECU) (LEFT SIDE)

Fig 1: Identifying Driver Side Junction Block ECU Connectors (Left Side)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the B4 body ECU connector.
2. Check the continuity of the terminal of the disconnected connector.
  Standard:
  
  Fig 2: Driver Side Junction Block ECU Terminal Continuity Specification Chart (Left Side)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Reconnect the B4 body ECU connector.
4. Check the voltage of each terminal of the connectors.
  Standard:
  
  Fig 3: Driver Side Junction Block ECU Connector Voltage Specification Chart (Left Side)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK DRIVER SIDE JUNCTION BLOCK ASSY (BODY ECU) (REAR SIDE)

Fig 4: Identifying Driver Side Junction Block ECU Connectors (Rear Side)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the 2B, 2F and 2G driver side J/B connectors.
2. Check the continuity and voltage of each terminal of the disconnected connectors.
  Standard:
  
  Fig 5: Driver Side Junction Block ECU Terminal Continuity Specification Chart (Rear Side)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Reconnect the connectors, and check the continuity of the terminal of the connector.
  Standard:
  
  Fig 6: Driver Side Junction Block ECU Connector Voltage Specification Chart (Rear Side)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002