Inspection Procedure

1. Disconnect the A21 connector of the ECM.
Fig 1: Checking Harness And Connector (TC Of DLC3 - ECM)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance.

   Standard resistance 

   TC OF DLC3 - ECM
   
   

   Tester Connection	Specified Condition
   TC(D15-13)- TC (A21-27)	Below 1 Ω

3. Reconnect the ECM connector.

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

OK: GO TO NEXT STEP 

1. Measure the resistance.

   Standard resistance 

   TC OF DLC3 - BODY GROUND
   
   

   Tester Connection	Specified Condition
   TC (D15-13) - Body ground	10 kΩ or higher

   Fig 2: Checking Harness And Connector (TC Of DLC3 - Body Ground)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (TC CIRCUIT) 

OK: GO TO NEXT STEP 

1. Measure the resistance.

   Standard resistance 

   CG OF DLC3 - BODY GROUND
   
   

   Tester Connection	Specified Condition
   CG (D15-4) - Body ground	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 (CG of DLC3 - BODY GROUND) 

OK: REPLACE ECM