VSV For Pressure Switching Valve: Inspection

REMOVE CHARCOAL CANISTER ASSEMBLY
REMOVE VSV FROM CHARCOAL CANISTER

INSPECT VSV

Inspect the VSV for open circuit.

Using an ohmmeter, check that there is continuity between the terminals.

Fig 1: Checking There Is Continuity Between Terminals

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Resistance:

VSV RESISTANCE

Temperature	Resistance
20°C (68°F)	37-44 Ω
120°C (248°F)	51-62 Ω.

If there is no continuity, replace the VSV.

Inspect the VSV for ground.
Check that there is no continuity between each terminals and the body.

If there is continuity, replace the VSV.

Fig 2: Checking There Is No Continuity Between Each Terminals And Body
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Inspect the VSV operation.
1. Check that the air does not from port E to F.
  
  Fig 3: Checking Air Does Not From Port E To F
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Apply battery positive voltage across the terminals.
3. Check that the air flows from port E to F
If operation is not specified, replace the VSV.

REINSTALL VSV TO CHARCOAL CANISTER
REINSTALL CHARCOAL CANISTER ASSEMBLY