DTC THC_d0007: Radiator Bypass Valve Malfunction [09/2013 - ]: Procedure

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1. Disconnect connector D2 from the switching valve way.

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2. Disconnect connector L29 from the thermal control ECU.

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3. Disconnect connector L31 from the thermal control ECU.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   D2-1 (CVREQ) - L31-17 (CVREQ)	Power switch off	Below 1 Ω
   D2-3 (CVFDB) - L31-7 (CVFDB)	Power switch off	Below 1 Ω
   D2-6 (VS+) - L29-15 (VS+)	Power switch off	Below 1 Ω
   D2-4 (VS-) - Body ground	Power switch off	Below 1 Ω
   D2-1 (CVREQ) or L31-17 (CVREQ) - Body ground and other terminals	Power switch off	1 kΩ or higher
   D2-3 (CVFDB) or L31-7 (CVFDB) - Body ground and other terminals	Power switch off	1 kΩ or higher
   D2-6 (VS+) or L29-15 (VS+) - Body ground and other terminals	Power switch off	1 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Switching Valve Way)
   *b	Front view of wire harness connector (to Thermal Control ECU)
   *c	Front view of wire harness connector (to Thermal Control ECU)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the switching valve way. Refer to REMOVAL [09/2013 - ] .
2. Connect the RAV4 EV diagnostic tool to the No. 2 DLC3.
3. Turn the power switch on (READY).
4. Turn the RAV4 EV diagnostic tool on.
5. Enter the following menus: Thermal Test / Thermal System Test.
6. Perform the "Thermal System Test" Active Test.
7. Enter the following menus: DTCs.
8. Read the alert codes.
   RESULT
   
   

   Result	Proceed to
   Alert code is not output	A
   THC_d0007 is output	B

B → See step   3 

A → COMPLETED