Canister Close Valve (CCV)

CANISTER CLOSE VALVE (CCV)

INSPECTION

FUNCTION AND OPERATION PRINCIPLE




The evaporative emission control system prevents hydro-carbon (HC) vapors from the fuel tank from escaping into the atmosphere where they could form photochemical smog. Gasoline vapors are collected in the charcoal canister. The Canister Close Valve (CCV) closes off the air inlet into the canister for leak detection of the evaporative emission system. The CCV also prevents fuel vapors from escaping from the canister. When the engine purges the HC vapors from the canister, the clean air comes into the canister through the canister air-filter and the CCV.

SPECIFICATION
Item Specification
Coil Resistance(ohm) 15.5 - 18.5 ohms at 20 °C(68 °F)

Schematic Diagram:

SCHEMATIC DIAGRAM

COMPONENT INSPECTION
1. Turn ignition switch OFF.
2. Disconnect CCV connector.
3. Measure resistance between CCV terminals 1 and 2.
4. Check that the resistance is within the specification.

SPECIFICATION : Refer to SPECIFICATION