TC and CG Terminal Circuit [10/2015 - 08/2016]: Procedure

1. Check if the CAN communication system DTC is output.

   Refer to DIAGNOSIS SYSTEM [10/2015 - 08/2016]

Result: 

CAN communication system DTC is output 

GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING):  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] 

Result: 

CAN communication system DTC is not output 

See step  2

1. Turn the ignition switch to ON.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   DLC3

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   G14-13 (TC) - G14-4 (CG)	Ignition switch ON	11 to 14 V

Result: 

OK 

See step  5

Result: 

NG 

See step  3

1. Turn the ignition switch off.
2. Disconnect the A62 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G14-13 (TC) - A62-23 (TC)	Always	Below 1 Ω
   G14-13 (TC) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G14-4 (CG) - Body ground	Always	Below 1 Ω

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of DLC3

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

1. Turn the ignition switch off.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   DLC3

2. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
   • SST: 09843-18040 
3. Turn the ignition switch to ON.
4. Check that the malfunction indicator lamp is blinking.

Result: 

Malfunction indicator lamp is blinking 

REPLACE ECM:  REMOVAL [12/2012 - ] 

Result: 

Malfunction indicator lamp is not blinking 

REPLACE 4WD ECU ASSEMBLY:  REMOVAL [12/2012 - ]