System Check - EVAP

Chart 6EC-1: EVAP System Check:

CIRCUIT DESCRIPTION
The EVAP solenoid receives 12 volts from fuse 'D1' in the engine compartment fuse block through CKT 750. The PCM energizes the EVAP solenoid by grounding pin '3E7' (CKT 428). When the solenoid is energized it allows the EVAP canister to purge.

The EVAP canister is commanded to purge when:

^ Coolant is above 80°C.
^ Closed loop has been achieved for at least 30 seconds.
^ Throttle switch is open.
^ Vehicle speed sensor is greater than 10 mph.
^ Engine speed (RPM) above a threshold.

OR

^ Code P013, P017, P042, P043, P044, or P045 is present.

The PCM will de - energize the EVAP solenoid (not allow purge) when Codes P016 is set or the PCM is running in the backup mode (no normal program control).