Uploaded January 2025 | Updated September 2026, 2 weeks ago
F250 F350 4WD Switch PN: F75Z-7Z155-BA Just a quick video on how to get this out and test it. I've never heard of one going bad but if one does you can test it with a hand held Multi-Meter before you go buy one. ** Corrected ** This is a reload of the same video but with corrections to ohm readings on pins 2 & 3 that were reversed on the original video and have now been corrected in this video. My apologies to any confusion caused by the previous version. If you would like a copy of the diagrams in the video, just take a screenshot on your phone, or use the snip tool in windows, or contact me with your email address. Again my apologies for any confusion. Keith Noneya
On a side note the Wiring Diagrams in the video from the transmission to the dash are for the L99-01, although the Switch diagram is the same for all years. You can get wiring diagrams for the L99-01 here; https://charm.li/Ford/2001/F%20350%204WD%20Super%20Duty%20V8-7.3L%20DSL%20Turbo%20VIN%20F/Repair%20and%20Diagnosis/Diagrams/Electrical%20Diagrams/Transfer%20Case/System%20Diagram/
For other years Wiring Diagrams try looking them up here; https://charm.li/Ford/
If you need the Wiring Diagrams for the 02-03 Subperduty's you can get a free download copy of the 02-03 Superduty Wiring Diagram Manual here; drive.google.com/file/d/1ePqzu0_e9hEdE_OXT8Q6FPuUE5XMM9CU/view?pli=1
Tools:
- AstroAI PN: CM4K0R $40.00 amazon.com/dp/B08MTCMWLB
- Two AAA Batteries.
If you know of other videos on the subject "PLEASE" drop a link to them in a comment to help others.
My channel is about the 99-03 F350 7.3L, Electronic Test Equipment and a few other misc items.
If you like the video or leaned something please give the video a like. If you want to help my channel please subscribe.
Thanks for watching. Best Wishes & Blessings. Keith Noneya
F250 F350 4WD Switch PN: F75Z-7Z155-BA Just a quick video on how to get this out and test it. I've never heard of one going bad but if one does you can test it with a hand held Multi-Meter before you go buy one. ** Corrected ** This is a reload of the same video but with corrections to ohm readings on pins 2 & 3 that were reversed on the original video and have now been corrected in this video. My apologies to any confusion caused by the previous version. If you would like a copy of the diagrams in the video, just take a screenshot on your phone, or use the snip tool in windows, or contact me with your email address. Again my apologies for any confusion. Keith Noneya
On a side note the Wiring Diagrams in the video from the transmission to the dash are for the L99-01, although the Switch diagram is the same for all years. You can get wiring diagrams for the L99-01 here; https://charm.li/Ford/2001/F%20350%204WD%20Super%20Duty%20V8-7.3L%20DSL%20Turbo%20VIN%20F/Repair%20and%20Diagnosis/Diagrams/Electrical%20Diagrams/Transfer%20Case/System%20Diagram/
For other years Wiring Diagrams try looking them up here; https://charm.li/Ford/
If you need the Wiring Diagrams for the 02-03 Subperduty's you can get a free download copy of the 02-03 Superduty Wiring Diagram Manual here; drive.google.com/file/d/1ePqzu0_e9hEdE_OXT8Q6FPuUE5XMM9CU/view?pli=1
Tools:
- AstroAI PN: CM4K0R $40.00 amazon.com/dp/B08MTCMWLB
- Two AAA Batteries.
If you know of other videos on the subject "PLEASE" drop a link to them in a comment to help others.
My channel is about the 99-03 F350 7.3L, Electronic Test Equipment and a few other misc items.
If you like the video or leaned something please give the video a like. If you want to help my channel please subscribe.
Thanks for watching. Best Wishes & Blessings. Keith Noneya
