Inspection Procedure

1. Disconnect the A10 connector from the ECM.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   A10-27(TC)-E21-13 (TC)	Always	Below 1 Ω

Fig 1: Identifying DLC3 And A10 Connectors Terminals

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NG: REPAIR OR REPLACE HARNESS OR 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
   
   

   Tester Connection	Condition	Specified condition
   E21-4(CG)-Body ground	Always	Below 1 Ω

Fig 2: Identifying E21 Connector Terminals

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NG: REPAIR OR REPLACE HARNESS OR 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
   
   

   Tester Connection	Condition	Specified Condition
   E21-13 (TC) - Body ground	Always	10 Ω or higher

Fig 3: Identifying E21 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU 

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