KB - Testing Notes

NOTE: You should enter this Pinpoint Test only when you have been directed here from Diagnostic Routines.

REMEMBER

This Pinpoint Test is intended to diagnose only the following:

- Canister Purge (CANP) valve (90915)

- Harness circuits: CANP and VPWR

- Powertrain Control Module (PCM) (12A650)

Schematic Diagram:

DESCRIPTION

The CANP valve is a part solenoid, part valve output component that is used by the PCM to regulate the flow of fuel vapors from the EVAP canister to the fuel system. The CANP valve regulates the flow as a function of manifold vacuum and duty cycle signal from the PCM, which controls the CANP valve solenoid.