Associating an interface with PIM doesn't necessarily enable PIM on that interface. To enable PIM over an interface, you must configure a PIM query interval (see Configuring PIM Query Intervals).
This example associates VLAN 5 to PIM 1.
SEFOS# configure terminal SEFOS(config)# set ip pim enable
SEFOS(config)# interface vlan 5
SEFOS(config-if)# ip pim componentId 1 SEFOS(config-if)# end
SEFOS# show ip pim interface detail
Vlan5 33 is up
Internet Address is 10.1.0.1
Muticast Switching : Enabled
PIM : Enabled
PIMv6 : Disabled
PIM version : 2, mode: Sparse
PIM DR : 10.1.0.1
PIM DR Priority : 1
PIM Neighbour Count : 0
PIM Hello/Query Interval : 30
PIM Message Interval : 60
PIM Override Interval : 0
PIM Lan Delay : 0
PIM Lan-Prune-Delay : Disabled
PIM Component Id : 1
PIM domain border : enabled