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18' Mustang throwing codes

Discussion in 'S550 Mustang Suspension Modification/Discussion' started by Saleen_1977, Sep 21, 2018.

  1. Saleen_1977

    Saleen_1977 Member Established Member

    Messages:
    244
    Joined:
    Aug 20, 2015
    Location:
    Houston
    I got a 18 GT MT82, I had my shop install a steeda clutch spring, steeda short throw shifter, aluminum driveshaft, 4.09 gears, all the steeda irs stability parts, front and rear sway bars. Now I have a wrench light and the screen reads hill assist start unavailable. Put a computer on it and got 2 codes: U0401 ABS module reaction and P0704 clutch switch input circuit. Should I take it to the dealership try to get it done under warranty? Which one of my installs you think got this going? Car only has 800 miles on it.
     
  2. svt04cobra1

    svt04cobra1 Member Established Member

    Messages:
    272
    Joined:
    Oct 30, 2004
    Location:
    West Palm Beach
    Looks like your shop might have damaged, unplugged, or moved your clutch switch. I would have that checked first.
     
    Zemedici likes this.
  3. Zemedici

    Zemedici #MeToo Established Member

    Messages:
    17,998
    Joined:
    Jan 7, 2013
    Location:
    Atlanta, GA
    Take it back to the shop that ****ed it up.
     
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  4. 96gt02

    96gt02 Active Member Established Member

    Messages:
    893
    Joined:
    Jan 21, 2015
    Location:
    NJ
    Yup shop definitely messed it up, not warranty-able
     
  5. SheepDog

    SheepDog Premium Member Premium Member Established Member

    Messages:
    24
    Joined:
    Mar 2, 2018
    Location:
    Middle Coast
    Poke your head underneath the dash and see if the clutch switch is unplugged.
     

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