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Shift on Fly issues (P1867)
I have read all over this site as well as others looking for a how to, to track an ESOF issue I just developed.
First off, I have a 2000 f250. Otherwise runs very well. Last week went to put it in 4x4. No 4x4 dash light, no 4x4. Checked the two fuzes, one in dash panel, one under the hood. Both OK. Replaced relays next to under hood fuse panel with new ones. No 4x4. Ran codes with AE and pulled P1867, GEM Control Timer, Transfer Case Plate General Circuit Failure.
Obviously there is a circuit failure. A wire (worst item to chase), or possibly the contacts in the switch motor on the x-fer case.
Anyone know how to check the contacts in the x-fer case motor (ohm readings). If it's that simple I would rather get the new motor and not bother chasing the 5000 wires all located on the driver side under the hood. Obviously I may have to chase wires, but I would rather check the ends of the lines first. If it's the GEM, I don't know how you ID that one.
Also, I read where a few folks have had to replace the switch in the dash. Any ideas of what to check on the dash switch for proper operationan?
Thanks for any help you can offer.