where to start troubleshooting? on 2003 Honda Civic

A/C quit suddenly and without warning --
one week later the blower quit -- where do I start?

Asked by for the 2003 Honda Civic
Start by checking the diagnostic trouble codes for the climate control system. If there are codes, diagnose according to the appropriate information for each code. If there are no codes, check for proper A/C refrigerant level in the system and check for power and ground to the blower motor.