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 MULTIPLEX NETWORK DOOR ECU FRONT LH (DRIVER DOOR ECU)

Fig 1: Identifying Terminals Of Multiplex Network Door ECU Front LH (Driver Door ECU)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the D25 ECU connector.
2. Measure the voltage and resistance of each terminal of the wire harness side connector.
  Standard:
  
  Fig 2: Multiplex Network Door ECU Front LH (Driver Door ECU) Terminals - 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.
3. Reconnect the D25 ECU connector.
4. Measure the voltage of each terminal of the connector.
  Standard:
  
  Fig 3: Multiplex Network Door ECU Front LH (Driver Door ECU) Terminals - Specified Condition Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK MULTIPLEX NETWORK DOOR ECU FRONT RH (PASSENGER DOOR ECU)

Fig 4: Identifying Terminals Of Multiplex Network Door ECU Front RH (Passenger Door ECU)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the F17 ECU connector.
2. Measure the voltage and resistance of each terminal of the wire harness side connector.
  Standard:
  
  Fig 5: Multiplex Network Door ECU Front RH (Passenger Door ECU) Terminals - 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.
3. Reconnect the F17 ECU connector.
4. Measure the voltage of each terminal of the connector.
  Standard:
  
  Fig 6: Multiplex Network Door ECU Front RH (Passenger Door ECU) Terminals - Specified Condition Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, the ECU may have a malfunction.
CHECK DRIVER SIDE J/B (DRIVER SIDE J/B ECU)

Fig 7: Identifying Terminals Of Driver Side J/B ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the DA and DG J/B, and D5 ECU connectors.
2. Measure the voltage and resistance between each terminal of the wire harness side connectors and body ground.
  Standard:
  
  Fig 8: Driver Side J/B ECU Terminals - 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.
3. Reconnect the DA and DG J/B, and D5 ECU connectors.
4. Measure the voltage between each terminal of the connector and body ground.
  Standard:
  
  Fig 9: Driver Side J/B ECU Terminals - Specified Condition Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Waveform 1:
  Standard (Reference):
  
  Fig 10: Waveform 1: Standard
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 11: Identifying Waveform
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CHECK PASSENGER SIDE J/B (PASSENGER SIDE J/B ECU)

Fig 12: Identifying Terminals Of Passenger Side J/B ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the PE and PG J/B, and P5 ECU connectors.
2. Measure the voltage and resistance between each terminal of the wire harness side connectors and body ground.
  Standard:
  
  Fig 13: Voltage And Resistance Between Terminals Of Passenger Side J/B ECU
  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 PE and PG J/B, and P5 ECU connectors.
4. Measure the voltage between each terminal of the connector and body ground.
  Standard:
  
  Fig 14: Voltage Between Terminals Of Passenger Side J/B ECU
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002