OBD II codes P1633 and P0511. Any ideas what to start with?
Discuss OBD II codes P1633 and P0511. Any ideas what to start with? on AllFordMustangs.com, the place for Mustang enthusiasts.
Welcome to our Mustang forums where Mustangers come together to hang out, discuss and enjoy their favorite Mustang hobby with fellow Mustang enthusiasts. We invite everyone to read, post, and enjoy our Mustang forum as well as the many other sections of our site.
You are currently viewing our forums as a guest. By joining our community you gain access to post topics, communicate with members, upload your photos and access many other special features. Registration is fast, simple and free so why wait, join our Mustang community today! If you have any problems with registration or your account login, please contact support.
P1633 - Keep Alive Power Voltage Too Low Indicates that the Keep Alive Power (KAPWR) circuit has experienced a power interrupt.
Open KAPWR circuit
Intermittent KAPWR Circuit
KAPWR is supplies from fuse 21 5 amp in the Central junction box (interior fuse panel). It is hot at all times.
There is no P0511 code listed in ford shop manual.
Had the same problem with my daily driver '05 Taurus with the flex fuel engine.
Same a/c problem and the same codes.
After wringing out the wiring with a multi-meter and coming up unfulfilled and highly frustrated, I googled the problem and ended up on this site. I read your thread and said to myself "could it really be that simple?"
Ten minutes later, with a fresh fuse installed and the problem disappeared... thanks bud!
Same finding. Thank you!! A/C Compressor clutch burnout lead to open in 10 amp fuse, leading to inability for 2005 OHV Taurus to idle. Replaced A/C compressor and also water pump while at it since an older Taurus had water pump failure at 136,000 miles. P0511 Idle Air Control Circuit code detected while running KOEO test. Additional notes are that in the 2005 Taurus, the belt tensioner pulley bolt is a T50 Torx, likely need a crow foot wrench to loosen high pressure hose from the power steering pump if you are removing the power sterring pump. On the A/C compressor itself, the snap for the electrical connector to the A/C clutch is on the bottom side of the connector.