Is your jeep auto or manual?
Hmm, you know I think this is probably my issue. That hadn't really crossed my mind. I was planning on swapping the wiring harness for a 5 speed instead of the auto this weekend.C154 is the 4 pin connector above the transmission. On an auto, the starter relay receives its ground through the NSS switch. The ground path is from the transmission case, through the switch, through pin 3 at C154, to the relay coil.
On a manual the ground path is from G105. Pins 1 and 3 are jumped together on the Manual reverse light switch pigtail at C154. I am not sure how he wired up the reverse lights but if this jumper wire is missing it will not crank.
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