Inspection Procedure

1. Measure the resistance of the DLC3.
   Fig 1: Identifying DLC3 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result 

   RESULT CHART
   
   

   Tester Connection	Condition	Specified Condition	Proceed to
   D1-6 (CANH) - D1-14 (CANL)	Ignition switch OFF	108 to 132 Ω	A
   D1-6 (CANH) - D1-14 (CANL)	Ignition switch OFF	132 Ω or higher	B

   NOTE: When the measured value is 132 Ω or higher and a CAN communication system diagnostic trouble code is output, there may be a fault besides disconnection of the DLC3 sub bus line. For that reason, troubleshooting should be performed again from "HOW TO PROCEED WITH TROUBLESHOOTING " after repairing the trouble area.

B: REPAIR OR REPLACE DLC3 SUB BUS LINE AND CONNECTOR (CANH, CANL) 

A: Go to Next step 

1. Disconnect the J25 CAN junction connector.
   Fig 2: Identifying J25 CAN Junction Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the wire harness side connector.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   J25-10 (CANH) - J25-21 (CANL)	Ignition switch OFF	108 to 132 Ω

NG: Go to step  4

OK: Go to Next step 

1. Disconnect the J25 CAN junction connector.
   Fig 3: Identifying J25 CAN Junction Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the wire harness side connector.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   J25-11 (CANH) - J25-22 (CANL)	Ignition switch OFF	108 to 132 Ω

NG: Go to step  5

OK: REPAIR OR REPLACE CAN JUNCTION CONNECTOR 

1. Disconnect the E6 ECM connector.
   Fig 4: Identifying E6 ECM Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the ECM.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   E6-25 (CANH) - E6-24 (CANL)	Ignition switch OFF	108 to 132 Ω

NG: REPLACE ECM 

OK: REPAIR OR REPLACE ECM MAIN BUS LINE AND CONNECTOR 

1. Disconnect the T28 translate ECU connector.
   Fig 5: Identifying T28 Translate ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the translate ECU.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   T28-8 (CANH) - T28-10 (CANL)	Ignition switch OFF	108 to 132 Ω

NG: REPLACE TRANSLATE ECU 

OK: REPAIR OR REPLACE TRANSLATE ECU MAIN BUS LINE AND CONNECTOR