Inspection Procedure

1. Disconnect the connector from the ECM.
   Fig 1: Identifying DLC3 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TC OF DLC3 - ECM
   
   

   Tester Connection	Condition	Specified Condition
   TC(E6-20) - TC(D1-13)	Always	Below 1 Ω

   Fig 2: Identifying E6 And E6-20 Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   CG OF DLC3 - BODY GROUND
   
   

   Tester Connection	Condition	Specified Condition
   CG(D1-4) - Body ground	Always	Below 1 Ω

   Fig 3: Checking Harness And Connector (CG Of DLC3 - Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TC OF DLC3 - BODY GROUND
   
   

   Tester Connection	Condition	Specified Condition
   TC(D1-13) - Body ground	Always	10 kΩ or higher

   Fig 4: Checking Harness And Connector (TC Of DLC3 - Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU 

OK: REPLACE ECM