2006 Chrysler PT Cruiser ignition switch

probably not making good contact in fuse box, tweak the prongs a tad and put dielectric grease on the prongs. see If that fixes it othe wise it may be a fuse box problem.

if i push the key up the test light do not lit however if i push the key down it will lit

I really don't understand what you are saying in this reply however i'll stand by my first diagnosis or the ignition switch was improperly replaced. I have no further comments or suggestions.

the starter relay is not located at the fuse box. it is at the firewall. the car wont start intermittently before i replaced the ignition switch.when i put the key in the lock cylinder i feel there is a play.when i turn the key to the start position and push it toward me the car starts otherwise it wont. i hope you understand now

as I said in last reply I have no further comments I can't give a good diagnosis without physically testing this myself.

guide me than how to do diagnosis