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 Instrument Panel J/B Assy (Multiplex Network Body ECU) Connectors Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the B6, B7, B8 and B9 ECU connectors.
2. Disconnect the 2A, 2F and 2M J/B connectors.
3. Measure the voltage and resistance of the wire harness side connectors.
  Standard:
  
  Fig 2: Measuring Voltage & Resistance Of Wire Harness Side Connectors Chart
  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 B6, B7, B8 and B9 ECU connectors.
5. Reconnect the 2A, 2F and 2M J/B connectors.
6. Measure the voltage of the connectors.
  Standard:
  
  Fig 3: Measuring Voltage Of Connectors Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the result is not as specified, the J/B assy (body ECU) may have a malfunction.