My 99 has a clicking noise from the turn signal relay. Relay has been replaced, were do I look next?

 

a relay normally clicks when working properly

 

My '99 P/U has the same problem. It starts clicking as soon as the ignition switch is turned on and never stop. Both right & left turn signals work and the lamps flash front and back. Need help,please.

 

Check your fuses

 

Thanks, will do.
R there any other areas I can check also?

 

i have a 2001 blazer and iv been tryn to get it figured out. it keeps giving me a p0300. when i plug my gm tech-tool in it said its misfiring on 1 and 4 almost exactly the same 1800-2800-rpm. iv replaced everything including the spider. the spider is the only thing i havnt replaced more than once. iv tried cleaning the injectors and intake. i just dont know what to-do anymore. please help