1997 F150 4x4 Lariat OD light flashing code P0503

Jose314 · #1 02-23-2005, 08:32 PM

Just started today, I notice the OD is flashing and I take it to get the codes checked out and the scanner shoots out a:

P0503 : VSS Intermittent

Whatever that means

I notice nothing really wrong, aside from the darn light flashing.

Did it to me twice today when I started going 70 MPH

Also this is my only means of transportation, can I drive around with this problem?

Any ideas or help would be apreciated, especially on how to fix it

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casey_1 · #2 02-24-2005, 09:05 AM

That means that the signal from the Vehicle Speed Sensor (VSS) is noisy. It could be a bad VSS or a wiring problem to the VSS.

Jose314 · #3 02-24-2005, 10:14 PM

Well it seems like it was the VSS in the tranny.

I went to the dealer and bought the one for the tranny, installed it and went on a 20+ mile highway trip, no more flashing OD light.

I'm so relieved it was something simple for a change.