DTC P0443: Evaporative Emission Control System Purge Control Valve Circuit [08/2014 - ]: Procedure

1. Connect the Techstream to the DLC3.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Remove the canister side vacuum hose from the purge VSV.
3. Turn the power switch on (IG) and turn the Techstream on.
4. Put the engine in inspection mode (maintenance mode). Refer to INSPECTION MODE PROCEDURE [08/2014 - ] .
5. Start the engine.
6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Evap Control.
7. When the purge VSV is operated using the Techstream, check whether the port of the purge VSV applies suction to your finger.

   OK

   Techstream Operation	Specified Condition
   ON (Purge VSV is on)	Purge VSV port applies suction to finger
   OFF (Purge VSV is off)	Purge VSV port applies no suction to finger

NG → See step   2 

OK → See step   5 

1. Inspect the purge VSV. Refer to INSPECTION [08/2014 - ] .

NG → See step   6 

OK: Go to next step 

1. Disconnect the purge VSV connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Turn the power switch on (IG).
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   D11-2 - Body ground	Power switch on (IG)	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Purge VSV)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (PURGE VSV - EFI MAIN RELAY) 

OK: Go to next step 

1. Disconnect the purge VSV connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   D11-1 - D28-28 (PRG)	Always	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Condition	Specified Condition
   D11-1 or D28-28 (PRG) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   7