I have an 07 JKU Sahara that's been having starting issues the past couple of weeks. It started out randomly, and has now progressed to happeningjust about every other time I start it. I turn the key, get the christmas lights, and it starts clicking as long as I keep the key turned. Originally I would just jump it and it would turn over within seconds of having the cables connected. Then my wife discovered by keeping the key turned, after a series of clicking, the engine will turn over.
Things I have checked/tried that don't work:
Battery posts and cables are free of corrosion.
Shifting to neutral doesn't work.
Pulling the J13 fuse for 30 seconds doesn't work.
Had O'Reilly's test the battery and the 'system' under load and everything checked out.
I'm getting P0513 (Invalid SKIM key) and P0562 (Low system voltage). Any thoughts? Is it possible for a battery to be bad, yet still pass the auto parts store test? I'm going to see if hooking a jumper cable to the negative post and a ground will help at all. Any other suggestions or thoughts on the problem?