TC and CG Terminal Circuit: Procedure

1. Turn the engine switch off.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Disconnect the A22 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H29-13 (TC) - A22-45 (TC)	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	DLC3
   *a	Front view of wire harness connector (to ECM)

NG → REPAIR OR REPLACE WIRE HARNESS 

OK: Go to next step 

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H29-4 (CG) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1

   DLC3

NG → REPAIR OR REPLACE WIRE HARNESS 

OK: Go to next step 

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H29-13 (TC) - Body ground	Always	1 MΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1

   DLC3

NG → REPAIR OR REPLACE WIRE HARNESS OR REPLACE ECM 

OK → See step   4