VC Output Circuit [09/2013 - ]: Procedure

1. Check that Malfunction Indicator Lamp (MIL) lights up when turning the engine switch on (IG).

   OK

   MIL lights up.

OK → SYSTEM OK 

NG: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and the Techstream on.
3. Check the communication between the Techstream and ECM.

   Result

   Result	Proceed to
   Communication is possible	A
   Communication is not possible	B

A → See step   15 

B: Go to next step 

1. Disconnect the throttle body connector.
2. Turn the engine switch on (IG).
3. Check the MIL.

   Result

   Result	Proceed to
   MIL illuminates	A
   MIL does not illuminate	B

4. Reconnect the throttle body connector.

   HINT: 

   Perform "Inspection After Repair" after replacing the throttle body. Refer to INITIALIZATION [09/2013 - ] .

A → See step   16 

B: Go to next step 

1. Disconnect the accelerator pedal position sensor connector.
2. Turn the engine switch on (IG).
3. Check the MIL.

   Result

   Result	Proceed to
   MIL illuminates	A
   MIL does not illuminate	B

4. Reconnect the accelerator pedal position sensor connector.

A → See step   17 

B: Go to next step 

1. Disconnect the canister pump module connector.
2. Turn the engine switch on (IG).
3. Check the MIL.

   Result

   Result	Proceed to
   MIL illuminates	A
   MIL does not illuminate	B

4. Reconnect the canister pump module connector.

A → See step   23 

B: Go to next step 

1. Disconnect the crankshaft position sensor.
2. Turn the engine switch on (IG).
3. Check the MIL.

   Result

   Result	Proceed to
   MIL illuminates	A
   MIL does not illuminate	B

4. Reconnect the crankshaft position sensor.

A → See step   24 

B: Go to next step 

1. Disconnect the camshaft position sensor.
2. Turn the engine switch on (IG).
3. Check the MIL.

   Result

   Result	Proceed to
   MIL illuminates	A
   MIL does not illuminate	B

4. Reconnect the camshaft position sensor.

A → See step   25 

B: Go to next step 

1. Remove the air cleaner assembly LH. Refer to REMOVAL [09/2013 - ] - Step 24 .
2. Disconnect the VVT sensor for intake side bank 1 connector.
3. Turn the engine switch on (IG).
4. Check the MIL.

   Result

   Result	Proceed to
   MIL illuminates	A
   MIL does not illuminate	B

5. Reconnect the VVT sensor for intake side bank 1 connector.

A → See step   18 

B: Go to next step 

1. Disconnect the VVT sensor for exhaust side bank 1 connector.
2. Turn the engine switch on (IG).
3. Check the MIL.

   Result

   Result	Proceed to
   MIL illuminates	A
   MIL does not illuminate	B

4. Reconnect the VVT sensor for exhaust side bank 1 connector.

A → See step   19 

B: Go to next step 

1. Remove the air cleaner assembly RH. Refer to REMOVAL [09/2013 - ] - Step 25 .
2. Disconnect the VVT sensor for intake side bank 2 connector.
3. Turn the engine switch on (IG).
4. Check the MIL.

   Result

   Result	Proceed to
   MIL illuminates	A
   MIL does not illuminate	B

5. Reconnect the VVT sensor for intake side bank 2 connector.

A → See step   20 

B: Go to next step 

1. Disconnect the VVT sensor for exhaust side bank 2 connector.
2. Turn the engine switch on (IG).
3. Check the MIL.

   Result

   Result	Proceed to
   MIL illuminates	A
   MIL does not illuminate	B

4. Reconnect the VVT sensor for exhaust side bank 2 connector.

A → See step   21 

B: Go to next step 

1. Remove the intake manifold. Refer to REMOVAL [09/2013 - ] .
2. Disconnect the fuel pressure sensor connector.
3. Turn the engine switch on (IG).
4. Check the MIL.

   Result

   Result	Proceed to
   MIL illuminates	A
   MIL does not illuminate	B

5. Reconnect the fuel pressure sensor connector.

A → See step   22 

B: Go to next step 

1. Disconnect the throttle body connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Disconnect the accelerator pedal position sensor connector.
3. Disconnect the canister pump module connector.
4. Disconnect the VVT sensor for intake side (bank 1).
5. Disconnect the VVT sensor for exhaust side (bank 1).
6. Disconnect the VVT sensor for intake side (bank 2).
7. Disconnect the VVT sensor for exhaust side (bank 2).
8. Disconnect the crankshaft position sensor.
9. Disconnect the camshaft position sensor.
10. Disconnect the fuel pressure sensor.
11. Disconnect the E1, E2 and A14 ECM connectors.
12. Measure the resistance according to the value(s) in the table below.

    Standard resistance (Check for short)

    Tester Connection	Condition	Specified Condition
    E2-34 (VCTA) - Body ground	Always	10 kΩ or higher
    A14-23 (VCPA) - Body ground	Always	10 kΩ or higher
    A14-22 (VCP2) - Body ground	Always	10 kΩ or higher
    E1-18 (VC) - Body ground	Always	10 kΩ or higher

13. Reconnect the ECM connectors.
14. Reconnect the canister pump module connector.
15. Reconnect the accelerator pedal position sensor connector.
16. Reconnect the throttle body connector.
17. Reconnect the VVT sensor for intake side (bank 1).
18. Reconnect the VVT sensor for exhaust side (bank 1).
19. Reconnect the VVT sensor for intake side (bank 2).
20. Reconnect the VVT sensor for exhaust side (bank 2).
21. Reconnect the crankshaft position sensor.
22. Reconnect the camshaft position sensor.
23. Reconnect the fuel pressure sensor.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   14