The blower motor does not run at all
Diagnostic Procedure
Probable cause: A problem in the blower motor power or ground circuit

Also Check for
Blown fuses No. C24 (7.5 A) in the under-dash fuse/relay box and No. D3 (30 A) in the auxiliary under-dash fuse box
Faulty blower motor relay
Faulty heater fan switch
Poor ground at G403
Poor or loose connections at the terminals