P0503 code after using fuse tap
Thread Starter
6th Gear
Joined: May 2020
Posts: 6
Likes: 1
P0503 code after using fuse tap
Hello, I tried to do the add a fuse approach to hardwiring a Uniden radar detector mod on a 997 as it sounded very straight forward but I accidentally put the fuse tap into the d7 fuse. I quickly switched the tap to C6 but now I am having a CEL with the system saying their is a system fault, PASM failure. What should I do? I replaced the fuse into the D7 slot and on an OBDII app that I have, it is throwing a p0503 code which is "vehicle speed sensor a erratic/high". Please help!
Last edited by nlenard; May 12, 2020 at 09:20 PM.
Three Wheelin'
Joined: Aug 2009
Posts: 1,329
Likes: 340
From: Denver
Hello, I tried to do the add a fuse approach to hardwiring a unidentifiable radar detector mod as it sounded very straight forward but I accidentally put the fuse tap into the d7 fuse. I quickly switched the tap to c6 but now I am having a CEL with the system saying their is a system fault, pasm failure, and spoiler failure. What should I do? i replaced the fuse into d7 and on an OBDII app that i have it is throwing a p0503 code which is vehicle speed sensor a erratic/high. Please help!
Racer
Joined: May 2013
Posts: 354
Likes: 161
From: New York
Hello, I tried to do the add a fuse approach to hardwiring a Uniden radar detector mod on a 997 as it sounded very straight forward but I accidentally put the fuse tap into the d7 fuse. I quickly switched the tap to C6 but now I am having a CEL with the system saying their is a system fault, PASM failure. What should I do? I replaced the fuse into the D7 slot and on an OBDII app that I have, it is throwing a p0503 code which is "vehicle speed sensor a erratic/high". Please help!
