VC Output Circuit: Procedure

1. Check that the Malfunction Indicator Lamp (MIL) lights up when turning the ignition switch to ON.

   OK

   MIL lights up

NG → See step   2 

OK → See step   14 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Check the communication between the Techstream and ECM.
   RESULT
   
   

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

B → See step   15 

A: Go to next step 

1. Disconnect the B14 throttle with motor body connector.
2. Turn the ignition switch to ON.
3. Check the MIL.
   RESULT
   
   

   Result	Proceed to
   MIL does not illuminate	A
   MIL illuminates	B

   HINT: 

   Perform "Inspection After Repair" after replacing the throttle with motor body assembly. Refer to INITIALIZATION .

B → See step   19 

A: Go to next step 

1. Disconnect the A2 accelerator pedal connector.
2. Turn the ignition switch to ON.
3. Check the MIL.
   RESULT
   
   

   Result	Proceed to
   MIL does not illuminate	A
   MIL illuminates	B

B → See step   18 

A: Go to next step 

1. Disconnect the L10 canister pump module connector.
2. Turn the ignition switch to ON.
3. Check the MIL.
   RESULT
   
   

   Result	Proceed to
   MIL does not illuminate	A
   MIL illuminates	B

B → See step   17 

A: Go to next step 

1. Disconnect the B15 VVT sensor (for Intake Side of Bank 1) connector.
2. Turn the ignition switch to ON.
3. Check the MIL.
   RESULT
   
   

   Result	Proceed to
   MIL does not illuminate	A
   MIL illuminates	B

B → See step   20 

A: Go to next step 

1. Disconnect the B57 VVT sensor (for Exhaust Side of Bank 1) connector.
2. Turn the ignition switch to ON.
3. Check the MIL.
   RESULT
   
   

   Result	Proceed to
   MIL does not illuminate	A
   MIL illuminates	B

B → See step   21 

A: Go to next step 

1. Disconnect the B27 VVT sensor (for Intake Side of Bank 2) connector.
2. Turn the ignition switch to ON.
3. Check the MIL.
   RESULT
   
   

   Result	Proceed to
   MIL does not illuminate	A
   MIL illuminates	B

B → See step   22 

A: Go to next step 

1. Disconnect the B58 VVT sensor (for Exhaust Side of Bank 2) connector.
2. Turn the ignition switch to ON.
3. Check the MIL.
   RESULT
   
   

   Result	Proceed to
   MIL does not illuminate	A
   MIL illuminates	B

B → See step   23 

A: Go to next step 

1. Disconnect the B59 power steering oil pressure switch connector.
2. Turn the ignition switch to ON.
3. Check the MIL.
   RESULT
   
   

   Result	Proceed to
   MIL does not illuminate (w/ Secondary Air Injection System)	A
   MIL does not illuminate (w/o Secondary Air Injection System)	B
   MIL illuminates	C

B → See step   13 

C → See step   24 

A: Go to next step 

1. Disconnect the B61 emission control valve set connector.
2. Turn the ignition switch to ON.
3. Check the MIL.
   RESULT
   
   

   Result	Proceed to
   MIL does not illuminate	A
   MIL illuminates	B

B → See step   25 

A: Go to next step 

1. Disconnect the B62 No. 2 emission control valve set connector.
2. Turn the ignition switch to ON.
3. Check the MIL.
   RESULT
   
   

   Result	Proceed to
   MIL does not illuminate	A
   MIL illuminates	B

B → See step   26 

A: Go to next step 

1. Disconnect the B14 throttle with motor body assembly connector.
2. Disconnect the A2 accelerator pedal connector.
3. Disconnect the L10 canister pump module connector.
4. Disconnect the B15 VVT sensor (for Intake Side Bank 1) connector.
5. Disconnect the B57 VVT sensor (for Exhaust Side Bank 1) connector.
6. Disconnect the B27 VVT sensor (for Intake Side Bank 2) connector.
7. Disconnect the B58 VVT sensor (for Exhaust Side Bank 2) connector.
8. Disconnect the B59 power steering oil pressure switch connector.
9. Disconnect the B61 emission control valve set connector (w/ Secondary Air Injection System).
10. Disconnect the B62 No. 2 emission control valve set connector (w/o Secondary Air Injection System).
11. Disconnect the B47, B48, B49 and E77 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
    B47-15 (VCV1) - Body ground	Always	10 kΩ or higher
    B47-16 (VCV2) - Body ground	Always	10 kΩ or higher
    E77-4 (VCPA) - Body ground	Always	10 kΩ or higher
    E77-2 (VCP2) - Body ground	Always	10 kΩ or higher
    B49-13 (VCTA) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   16