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 OUTER MIRROR CONTROL ECU ASSY
1. Disconnect the M2 mirror ECU connector.
2. Check the voltage and continuity between each terminal of the wire harness side connector.
  Standard
  
  Fig 2: Outer Mirror Control ECU Continuity Specification Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT: If the value is not as specified, a malfunction exists in the wire harness side.
3. Connect the M2 connector, and check the voltage between each terminal of the connector.
  Standard
  
  Fig 3: Outer Mirror Control ECU Voltage Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT: If the value is not as specified, a malfunction exists in the outer mirror control ECU assy.