Our 2002 alero won't turn over /start with key but starts by jumping. Test shows battery and fuses OK

Battery cable connections ? Need to hook up scan tool to see if the modules on the vehicle are communicating ! Voltage drop test starting system . Check START 1 relay in underhood fuse/relay box ! Check PCM/BATT fuse 10amp ! Check power at relay ! This video shows how ! VEHICLE RELAYS Operation Diagnosis If you don't know, best take to a ASE certified technician before you break it ? How to Test and Troubleshoot Starter Problem

You need to have the factory security system scanned, it is most likely locking you out due to a fault.

Check fuse,could be starter.check battery connection, how old is battery.

"No Bus" means something happened between the body computer and the engine computer. They are not connected to each other.
Usually a fuse, one of the computers, or the wiring harness in between.

Sounds like your solenoid is going bad... easy fix..

For some reason aleros have this problem every once in awhile. It might be the security on the alero. What you would have to do is turn the key all the way to accel i believe right before you start it and let it sit for about 13 minutes. affter this the security will recognise itself and start your car

You could have blown the main fuse while doing the jump start. Also check the fusible link on the power battery cable.

Hello
The engine and transmission in this cars drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPEDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM

the clicking that you hear is coming from the starter relay. sounds like your ignition starter switch or ignition lock cylinder is bad.

make sure all grounds are clean and area of metal that ground wire's bolt to are clean and rust free if that check's out ok there could be a break in a wire going to the starter and most starter's have two wire's going to them and those both need to have power going to them one drop's off when key is turned to starting mode volt meter work's good for this or test light or the starter could be bad