Inspection Procedure

CHECK DLC3
1. Measure the resistance according to the value(s) in Fig 1.
  Result:
  
  Fig 1: Result Reference Table
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  Fig 2: Checking DLC3 Connector Terminals
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  NOTE: When the measured value is 132 Ω or more and a CAN communication system diagnostic code is output, there may be a fault other than a disconnection of the DLC3 sub bus line. For that reason, troubleshooting should be performed again from the part of the article HOW TO PROCEED WITH TROUBLESHOOTING after repairing the trouble area.
1. B REPAIR OR REPLACE DLC3 SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L)
2. A: Go to next step.
CHECK CAN MAIN BUS LINE FOR DISCONNECTION (ECM - CAN J/C)
1. Disconnect the connector (E8) from the ECM.
2. Measure the resistance according to the value(s) in Fig 3.
  Standard:
  
  Fig 3: Tester Connection Specified Value Table
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1. NG: REPLACE ECM (SEE ECM (2UZ-FE) )
2. OK: Go to next step.
  
  Fig 4: Disconnecting Connector (E8) From ECM
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INSPECT CAN J/C
1. Disconnect the CAN main bus line connector (J39) from the CAN J/C.
  NOTE:
  - Before disconnecting the connector, make a note of where it is connected.
  - Reconnect the connector to its original position.
    
    Fig 5: Disconnecting CAN Main Bus Line Connector (J39) From CAN J/C
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2. Measure the resistance according to the value(s) in Fig 6.
  Standard:
  
  Fig 6: Terminal Specified Value Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPLACE CAN J/C
2. OK: REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (CAN J/C - ECM)
  
  Fig 7: Identifying CAN J/C Connector Terminal (With Earth Terminal)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002