SLX V6-3.2L SOHC (1996)
Purge Flow Sensor: Description and Operation
EVAP PURGE VACUUM SWITCH
The EVAP purge vacuum switch is used by the PCM to monitor the EVAP canister purge solenoid operation and the purge system integrity. The
EVAP purge vacuum switch should be closed to ground with no vacuum present (0% EVAP purge PWM). When the EVAP purge PWM is at
25% or greater, the EVAP purge vacuum switch should open.
An incorrect EVAP purge system flow should set a DTC P0441. A continuous purge condition with no purge commanded by the PCM should set
a DTC P1441. A fault in the EVAP purge vacuum switch circuit should set a DTC P1442.
