Terminals Of Ecu

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

CHECK INSTRUMENT PANEL J/B ASSY (MULTIPLEX NETWORK BODY ECU)

Fig 1: Identifying Terminals Of ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the 2D, 2F, 2J, 2K and 2M J/B connectors.
2. Disconnect the B6, B7, B8 and B9 ECU connectors.
3. Measure the voltage and resistance of the wire harness side connectors.
  Standard:
  
  Fig 2: Measuring Voltage & Resistance Of Wire Harness Side Connectors Table (1 Of 3)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 3: Measuring Voltage & Resistance Of Wire Harness Side Connectors Table (2 Of 3)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, there may be a malfunction on the wire harness side.
4. Reconnect the 2D, 2F, 2J, 2K and 2M J/B connectors.
5. Reconnect the B6, B7, B8 and B9 ECU connectors.
6. Measure the voltage of the connectors.
  Standard:
  
  Fig 4: Measuring Voltage & Resistance Of Wire Harness Side Connectors Table (3 Of 3)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, the ECU may have a malfunction.