When I switch on the radio?cd player in my Saab 900 the screen says "Code 1". What do I do to fix this ?

SOURCE: 1999 Saab 900 radio reset code

whenever the battery is removed (or car experiences any loss of power) you must type in security code for  radio (this is the case with BMWs and Volvos as well).  Go to any saab dealership and they can remove the radio and get your radio's 4 digit code, they all have one.  Yes, I have done this before ` they didn't charge me and I was in and out in ten minutes. 

SOURCE: where do you find the radio code 1994 saab 900

Upon disconnecting the battery the radio will flash code until you enter the code. If you enter the code incorrectly you must either hold the band button down until the word code reappears or leave the key on for one hour until the word code reappears. This procedure depends on the year of the car. If you do not have the radio code and would like to get it you must call your local Saab dealer with the serial number off the top of the radio. Many times radio owners will write the radio code on top of the radio once you have the correct code. Typically the radio code is in the owners pouch and is a small card with the numbers on it.

NOTE: If this helps you, please, please give me a good rating!!

SOURCE: I need an engine diagram for a 1995 saab 900 se V6

A SAAB dealer should be able to print one out for you. BTW that engine is practically identical to the V6 used in a caddy Catera, and Saturn Ion. Those diagrams would be the same, so you might want to search that also.

SOURCE: I changed the battery on my 1997 Saab 900. Radio is dead.

turn on the radio and enter the code. If it does not respond, hold the band button down until the screen asks for it. If that does not work, pull the radio and courtesy fuses for 5 minutes and retry.

SOURCE: Have 4 digit code, don't know how to reset it. Saab 900 S 1996

Your radio should say CODE when you tune it on. Type the 4 digit code in using your Radio Preset buttons 1 thru 6. If you type in the wrong code more the 3 times the radio will lock you out for a lengthy amount of time...

Hope that helps