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Lost Power, Need Guidance...??

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Old 12-16-2015, 04:01 PM
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Default Lost Power, Need Guidance...??

99 XJ, 4.0 AW4........

This morning on my way to work I lost power to my radio, wipers, door/window controls, heater blower, air bag light came on and no turn signals . Everything else functioned correctly as far as I know. When I parked at work I shut it down and then restarted. Everything functioned correctly. At this point I'd call it an intermittent issue.

Any ides as where to look? I'm thinking maybe a bad ground but maybe a bad relay? I'm open to any ideas....
Old 08-25-2016, 11:34 PM
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Look at the connector on the ignition switch. Probably toasty brown.
Old 08-26-2016, 10:12 AM
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All those circuits you named are fused in the JB, but different fuses.


I don't think they share the same ground point, except that they are all grounded through the chassis. Ground G106, on the left inner fender is the ground point for a few f those circuits, but not all.


I know you redid all your cables in the engine bay so it may be a good idea to double check the security of the grounds.


Double checking, I found that all the circuits you describe go through connector C4 in the JB. See JB diagram. It might be a good idea to access the entire JB and remove connector C4 and see if it's corroded. If okay re-secure. Any corrosion in the connector is bad juju.


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