TC and CG Terminal Circuit: Procedure

1. Check if the CAN communication DTC is output. Refer to DIAGNOSIS SYSTEM [08/2012 - ] .

   Result

   Result	Proceed to
   CAN communication system DTC is output	A
   CAN communication system DTC is not output	B

B → See step   2 

A → GO TO CAN COMMUNICATION SYSTEM 

1. Disconnect the ECM connector.

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

   Standard resistance

   Tester Connection	Specified Condition
   J21-13 (TC) - A6-3 (TC)	Below 1 Ω
   A6-3 (TC) - Body ground	10 kΩ or higher

NG → See step   4 

OK: Go to next step 

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

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   Standard resistance

   Tester Connection	Specified Condition
   J21-4 (CG) - Body ground	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (CG TERMINAL CIRCUIT) 

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	Specified Condition
   J21-13 (TC) - Body ground	10 kΩ or higher

NG → CHECK HARNESS AND CONNECTOR OR CHECK EACH ECU 

OK → REPLACE 4WD CONTROL ECU