did a diagnostics on my car dont know if i did it properly but these codes came up --- f13, f15, f32, f48
anybody know these codes?

 

Those are climate control / airconditioning codes. Do a web search, you will probably find them.

 

I found a table for you:

1980's Diagnostic CodesThe following codes are programmed
into the BCM

Code
Circuit Affected

F00
No BCM System Faults

F10
Outside Air Temperature Circuit Problem

F11
A/C High Side Temperature Circuit Problem

F12
A/C Low Side Temperature Circuit Problem

F13
In-Car Temperature Circuit Problem

F19
Blower motor failure

F32
BCM to ECM date transfer problem

F40
Air Mix Door Problem

F41
Cooling Fans Problem

F46
Low A/C Refrigerant Condition Warning (1/2 charge)

F47
Very Low A/C Refrigerant Condition Warning (1/4 charge)

F48
Very Low A/C Refrigerant Pressure Condition

F49
A/C High Side Temperature Too High (temperature exceeds 200°F)

F50
Coolant Temperature Too High (exceeds 259°F)