Ford PSOM Speedometer Head PCB and LCD Change on OBS Fords and Other Ford Powered Vehicles 92-97
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- čas přidán 16. 01. 2022
- This shows you the quick and simple way of changing the PSOM PCB and LCD after proper diagnosis of fault. You'll need a T10 torx screwdriver and possibly a small flathead. Be careful handling the head unit as the needle, needle stops, LCD, and some other components are delicate. You can change the LCD without removing the PCB, but in this video I showed you while the PCB was removed, for clarity. If the face of the speedo comes loose while handling, don't worry! Just center it with your hand and tack a couple edges that don't interfere with mounting or other gauges with your soldering gun and it's as good as new. If you're in very dry climate, ground yourself properly and avoid static electricity as one good sock-on-the-carpet rub could lightening strike your way to a dead PCB. If you want to clean the face, you can use a soft old tooth brush and a mild light dish soap water solution and a soft microfiber towel. Don't snag the needle stops!
Thanks for watching, and good luck! - Auta a dopravní prostředky
this is for sure a great channel and beautiful videos. can't wait till the next one.... SUBBED and LIKED , a fellow creator.
Thanks a bunch! Much appreciated!
I had my speedometer and the VSS .The speedometer still only goes to 5 mph. It is a 1997 Damon Daybreaker Motor home
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You may want to check your VSS input. You can check it accurately with a handheld oscilloscope, or you can check its function with a quality multimeter on AC voltage. The voltage will increase linearly as you increase your speed. If it tops out, you most likely have a broken tone ring on the side of the ring gear on the carrier. You can check that by removing the VSS, and lightly with a regular screwdriver, you would be able to rotate the "thin bumpy gear" that will be centered in the VSS hole. If you measure an good increase in voltage at the PSOM harness, your PSOM board or the needle motor is bad, and you'll need it to be repaired. Instrument gauges shops are still all over, and most likely can repair it at that point. I hope this helps.
Good luck!
I believe the psom is working fine in my truck (runs and drives fine) but the speedometer and odometer is dead, do I just need to replace the lcd and needle unit or get a new one and swap the pcb?(95 f150)
Check on the driver side transmission for a round peace with wires on end of it, should be at top edge you will see a band that held it, mine was just hanging there so I returned it to the small band holder and everything work great, I thank they pull them out to keep the mileage down, Mine was the 5 speed transmission, good luck hope this helps,
@@williamstidham2163I will have to look at it in the morning thank you very much for the reply good sir!!!
Something else to mention... Is it a standard or auto? With the standard models, the PSOM doesn't control anything but cruise (if equipped), but you'll know it when the PSOM stops telling it when to shift as the trans won't shift correctly, pretty badly actually. You might have to pull your cluster to check if it's getting power. The PSOM will illuminate and "power up" with 12v and it will read the mileage. When the ignition is in the "off" position, the light green and yellow wire at position C1 should have battery hot at all times. When the ignition is in the "on" or "run" position, it then sends power also to the white and purple wire in the C3 position. Check the pink and orange wire in the C2 position for ground. You can back probe these wires after removing the gauges without unplugging them. If you have ground and hot where you're supposed to, then your PSOM PCB has failed. Most likely your gauge works fine. They rarely fail. You can find a PSOM on eBay or send it in to a gauge repair shop have it repaired. Typically the capacitors dry out, or some tracings oxidize and deteriorate. Good luck! Sorry for the late message! Thanks for the reply!
@@whiteknightandshorty but it does illuminate when I start the truck, anyways I’m gonna have to pull it apart this weekend and see if everything is as it’s supposed to be, thank you again for the reply it really helps!!!
Donde puedo comprar esas piezas de repuesto es para una f150 año 1992
DigiKey es un buen lugar para piezas electrónicas. Tengo algunas aquí pero no muchas. El depósito de chatarra es bueno. 92-96 y todos los PSOMs funcion lo mismo, pero 95/96 son mejores.
Where did you buy the PCB AND LCD??
I typically find them in junkyards now, as from my understanding, they are obsolete. I use parts from one to repair others etc. I believe most gauge repair companies do this. I hope at some point in the future a PCB company can reengineer an aftermarket one.