Ford Focus ST Forum banner

electrical

  1. Focus ST Discussions
    2015 Focus St (1) @87k Mods: Cold air intake, bigger intercooler, Cobb tuner, symposer delete. Got it used, without tuner, ran fine, added Cobb tuner, engine blew up shortly. Replaced the long block and uninstalled the tuner from the car. Problems: Hill start assist not available, random...
  2. Focus ST Electronics
    So I’ve had my 2015 focus ST(3) for about 2 years now. It honestly hasn’t given me much issue. I’ve maintained it exceptionally well over the past 2 years. So I’ve been having a issue and I cannot find a thing about it! So usually my car starts fine. But ever so often I can drive somewhere, go...
  3. Focus ST Discussions
    I started a thread about two weeks ago regarding my cars voltage problem, my car (Ford Focus ST 2015) had battery light on, and voltage was low as well, check engine lit up, battery light was turning on and off occasionally, then it stuck there for few days, and then completely disappeared for...
  4. Focus ST Discussions
    Hi, So relatively recently my ST has been acting up. I had a battery light and I've taken it to the dealer twice, first they fixed a power draw from the headlights, the second time they told me to remove my aftermarket car alarm due to a power draw, so I did. They also replaced the positive...
  5. Focus ST Electronics
    Hey everyone! I've been updating everything from SYNC 2 to 3 in my 2015 ST and I've ran into a problem with the USB Hub module. I'd like to update from SYNC 3.0 to the latest update 3.4. I purchased from Amazon "Genuine Ford Transceiver HU5Z-19A387-B" from a Ford parts dealer. What I received...
  6. Focus ST Discussions
    Hey my name is TJ I’ve had my ST for 10months it’s pretty much close to stock . I’ll get right into it so I had an aftermarket sound system in the car, Two 10” subs a 600watt amp and line output converter. One day on my way to Fredrick MD the subs went out on the highway after reaching my...
  7. Focus ST Electronics
    I bought a used 2013 St3 not that long ago. I am new to driving manual so I went to a parking lot with a friend to get some pointers and tips on driving the car. We noticed after that sometimes after stalling, my car wouldn't turn over and we had to use a jump box to get it working or...
  8. Focus ST Discussions
    This has me stumped and really confused. I'm not proud of what I did, here, but now I'm in a jam. 2014 ST1, replaced the whole rear hatch door. Just ordered the whole door and had it shipped. Fit perfectly, except for one thing. The wiring harness that leads to the rear door (powers the wiper...
Top