TC and CG Terminal Circuit [08/2013 - ]: Procedure

1. Check if CAN communication system DTCs are output. Refer to DIAGNOSIS SYSTEM [08/2013 - ] .

   Result

   Result	Proceed to
   DTCs are not output.	A
   DTCs are output.	B

B → See step   7 

A: Go to next step 

1. Check if DTC C2179/79 is output. Refer to DTC C2179/79: Tire Pressure Monitor ECU Communication Stop [08/2013 - ] .

   Result

   Result	Proceed to
   DTC C2179/79 is not output.	A
   DTC C2179/79 is output.	B

B → See step   9 

A: Go to next step 

1. Disconnect the H1 power management control ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H29-13 (TC) - H1-11 (TC)	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

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
   
   

   *a	Front view of DLC3

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Connect the H1 power management control ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   H29-13 (TC) - H29-4 (CG)	Power switch on (IG)	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of DLC3

NG → See step   8 

OK → See step   6