2002 No electrical power.

[Huntedragon]

Well I was up under the dash changing out the blower resistor so I can have heat this winter. I plugged everything back in and now have no power to the hole jeep. Usually when I connect the positive back to the post on the battery I get a small spark. I'm not getting that neither. Any ideas on where to start? Relay switch maybe? I've checked all the fuses under the dash and the hood.

 

[williambmac]

First two thing I would do. Check voltage across the battery terminals with a DMM. Then assuming you only had the neagative cable disconnected, I would check resistance to ground in the cable.

 

[CharlesHS]

As WBM posted above; check the battery terminals are tight, there is voltage (12.5VDC) on the positive and negative cables, verify there is voltage to terminals at the PDC (engine compartment relay/fuse block) and ensure the cable connection to the PDC are tight, verify the ground cable is tight on the engine block grounding stud.

 

[qslim]

I'd start with a jumpbox or a set of jumper cables & see what happens.

 

[Huntedragon]

I'd start with a jumpbox or a set of jumper cables & see what happens.

Tried it last night.. and still nothing.. thanks for info..

 

[Huntedragon]

Thank you guys.. Found I need new grounds coming off the battery.. well I guess it was about time.. im pretty sure they are the original cables from 2002..lol

 

[Huntedragon]

Thank you for the info.