Inspection Procedure

1. Disconnect the A7 connector from the ECM.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   A7-3 (TC) - K16-13 (TC)	Always	Below 1 Ω

Fig 1: Checking Wire Harness (TC Of DLC3 - ECM)

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NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR (DLC3 - ECM) 

OK: Go to next step 

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

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester connection	Condition	Specified condition
   K16-4 (CG) - Body ground	Always	Below 1 Ω

Fig 2: Identifying DLC3 Connector Terminals

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NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR (DLC3 - BODY GROUND) 

OK: Go to next step 

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

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   K16-13 (TC) - Body ground	Always	10 kΩ or higher

Fig 3: Identifying DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE WIRE HARNESS AND EACH ECU 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE