Hi

Jeep came in with intermittent start. pulled fault code p0615 - starter relay circuit fault.
we have lost the ground to pin 85 from the ecu. If we ground this pin 85, starter engages. colour of wire is dark green with orange trace. The only similar colour going to ecu does not have continuity and we were told this wire terminates at pin 44 on ecu.

We do not have a pin 44 on ecu so struggling with information. gear shift live data shows correct positioning of gear lever so dis-counting gear range sensor. We have no information how ecu "reads" start signal from ignition switch.

Any information relating to this vehicle with wiring diagrams (or help) would be appreciated.

Ken