Terminals Of Ecu

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DRIVER DOOR ECU

Fig 1: Identifying Driver Door ECU Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the D25 ECU connector.
2. Measure the voltage of each terminal of the wire harness side connector.
  Standard:
  
  Fig 2: Driver Door ECU Terminals Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, there may be a malfunction on the wire harness side.
3. Reconnect the D25 ECU connector
4. Measure the voltage of each terminal of the D25 and R39 ECU connectors.
  Standard:
  
  Fig 3: Driver Door ECU Terminals Reference Chart (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 4: Driver Door ECU Terminals Reference Chart (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, replace the remote control mirror or the driver door ECU may be malfunctioning.
CHECK FRONT PASSENGER DOOR ECU

Fig 5: Identifying Front Passenger Door ECU Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the F17 ECU connector.
2. Measure the voltage of each terminal of the wire harness side connector.
  Standard:
  
  Fig 6: Front Passenger Door ECU Terminals Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the F17 ECU connector.
Measure the voltage of each terminal of the F17 and R40 ECU connectors.
Standard:

Fig 7: Front Passenger Door ECU Terminals Reference Chart (1 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 8: Front Passenger Door ECU Terminals Reference Chart (2 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the remote control mirror or the passenger door ECU may be malfunctioning.
CHECK DRIVER SIDE J/B ECU

Fig 9: Identifying Driver Side J/B ECU Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect DA, DG JB and D5 ECU connectors.
2. Measure the voltage of each terminal of the wire harness side connectors.
  Standard:
Fig 10: Driver Side J/B ECU Terminals Reference Chart (1 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 11: Driver Side J/B ECU Terminals Reference Chart (2 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the DA, DG JB and D5 ECU connectors.
Measure the voltage of each terminal of the connectors.
Standard:

Fig 12: Driver Side J/B ECU Terminals Reference Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the outer mirror switch or the ECU may be malfunctioning.