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EVAP canister purge valve (321): Connection

WARNING: This page is about a different car, the 2003 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
CONNECTION

Pin No. Signal type Description
1 Power supply, B+ Purge valve's power supply from the main relay.
2 Control Purge valve's control. The purge valve is grounded by ECM pin 17(B). The signal is normally PWM, 16 Hz, but is 8 Hz during tank integrity diagnosis.
Fig 1: Identifying EVAP Canister Purge Valve Connector And Sensor
G03603822Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 2: EVAP Canister Purge Valve Circuit Diagram
G03603823Courtesy of SAAB-SCANIA OF AMERICA, INC.

When without power, the purge valve is closed.

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