Chrysler Repair: chrysler pacifica radiator fan, 2004 chrysler pacifica, chrysler pacifica

Question
QUESTION: I have a 2004 chrysler pacifica awd. when I start the engine, radiator fans start working after 5 seconds and constantly works. if I turn off the engine it stiops . what part should I check and replace?

Thanks

ANSWER: possible rad fan relay

---------- FOLLOW-UP ----------

QUESTION: Thank you for your response. Today the check engine lit on the cluster and autozone gave me a repoert witha code of P0480 which says problem with rad fan relay as you realized. Is it easy to change the relay by myself? and how?
Thanks...

Answer
REMOVAL
Open hood.
Disconnect and isolate the battery negative cable.
Partiacially remove the front fascia to gain access to the radiator fan relay (Refer to 23 - BODY/EXTERIOR/GRILLE - REMOVAL).
Disconnect the relay electrical connector (RADIATOR FAN RELAY).
Remove the rivet attaching the relay to the front bumper beam (RADIATOR FAN RELAY).
Remove the relay.