DTC P0443-13: Evaporative Emission System Purge Control Valve "A" Circuit Open [09/2022 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.

PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE EVAP PURGE VSV)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	VSV is on
*b	VSV is off

Disconnect the fuel vapor feed hose assembly (canister side) of the purge VSV.
Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.

Put the engine in Inspection Mode (Maintenance Mode).

Powertrain > Hybrid Control > Utility

Tester Display
Inspection Mode

Start the engine.

Enter the following menus: Powertrain / Engine / Active Test / Activate the EVAP Purge VSV.

Powertrain > Engine > Active Test

Tester Display
Activate the EVAP Purge VSV

When the purge VSV is operated using the Techstream, check whether the port of the purge VSV applies suction your finger.

Techstream Operation	Specified Condition
ON	Purge VSV port applies suction to finger
OFF	Purge VSV port applies no suction to finger

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

Result

Proceed to
OK
NG

Result:

CHECK FOR INTERMITTENT PROBLEMS

Refer to CHECK FOR INTERMITTENT PROBLEMS [01/2019 - ]

Result:

See step 2

INSPECT PURGE VSV

Inspect the purge VSV.

Refer to INSPECTION [01/2019 - ]

Result

Proceed to
OK
NG

Result:

REPLACE PURGE VSV

Refer to REMOVAL [01/2019 - ]

Result:

See step 3

CHECK TERMINAL VOLTAGE (POWER SOURCE OF PURGE VSV)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Disconnect the purge VSV connector.
Turn the power switch on (IG).

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

Standard Voltage

Tester Connection	Condition	Specified Condition
C30-2 - Body ground	Power switch on (IG)	11 to 14 V

Result

Proceed to
OK
NG

Result:

REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI-MAIN NO. 1 RELAY - PURGE VSV)

Result:

See step 4

CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)

Disconnect the purge VSV connector.
Disconnect the ECM connector.

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

Standard Resistance

Tester Connection	Condition	Specified Condition
C30-1 - C147-33 (PRG)	Always	Below 1 Ω
C30-1 or C147-33 (PRG) - Body ground and other terminals	Always	10 kΩ or higher

Result

Proceed to
OK
NG

Result:

REPLACE ECM

Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - ]

Result:

REPAIR OR REPLACE HARNESS OR CONNECTOR