Inspection Procedure

1. CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM) 
   1. Turn the ignition switch off.
   2. Disconnect the E6 connector of the ECM.
   3. Measure the resistance according to the value (s) in the table below.

   Standard: 

   TESTER CONNECTION AND SPECIFIC CONDITIONS
   
   

   Tester connection	Condition	Specification
   TC (DLC3-13) -TC (E6-20)	Always	Below 1 Ω

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

   OK: Go To Next Step. 

   Fig 1: Identifying ECM Connector E6 Terminal TC

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   Fig 2: Identifying DLC3 Connector Terminals

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2. CHECK HARNESS AND CONNECTOR (TC of DLC3 - BODY GROUND) 
   1. Measure the resistance according to the value (s) in the table below.

   Standard: 

   TESTER CONNECTION AND SPECIFIC CONDITIONS
   
   

   Tester connection	Condition	Specification
   TC (DLC3-13) -Body ground	Always	10 kΩ or higher

   NG: REPAIR OR REPLACE WIRE HARNESS OR EACH ECU (TC CIRCUIT) 

   OK: Go To Next Step. 

   Fig 3: Identifying DLC3 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND) 

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

Standard: 

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (CG of DLC3 - BODY GROUND) 

OK: REPLACE ECM (SEE  ECM (3MZ-FE)  ) 

Fig 4: Identifying DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002