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)
1. Disconnect the B4 body ECU connector and check the continuity of terminal of the disconnected connector.
  
  Fig 1: Identifying Driver Side Junction Block Assy (Body ECU) (Left Side)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 2: Driver Side Junction Block Assy (Body ECU) (Left Side) Specified Condition Chart (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT: If the result is not as specified, the vehicle's side may malfunction.
2. Reconnect the B4 connector, and check the voltage of the wire harness side connector.
  Standard:
  
  Fig 3: Driver Side Junction Block Assy (Body ECU) (Left Side) Specified Condition Chart (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT: If the result is not as specified, the body ECU may malfunction.
CHECK DRIVER SIDE JUNCTION BLOCK ASSY (BODY ECU) (REAR SIDE)

Fig 4: Identifying Driver Side Junction Block Assy (Body ECU) (Rear Side)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the 2B, 2E and 2F driver side J/B connectors.
2. Check the voltage and continuity of each terminal of the wire harness side connectors.
  Standard:
  
  Fig 5: Driver Side Junction Block Assy (Body ECU) (Rear Side) Specified Condition Chart (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT: If the result is not as specified, the vehicle's side may malfunction.
3. Reconnect the 2B, 2E and 2F driver side J/B connectors.
4. Check the voltage and continuity of each terminal of the wire harness side connectors.
  Standard:
  
  Fig 6: Driver Side Junction Block Assy (Body ECU) (Rear Side) Specified Condition Chart (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT: If the result is not as specified, the driver side J/B (body ECU) may malfunction.