OBD P121B code

Discussion in 'SRT Hellcat TSB's' started by Digger, Jun 17, 2015.

  1. Digger

    Digger Hellcat Member

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    FYI...my 2015 HC Challenger with 300 miles is throwing a P121B code in diagnostics screen. Took it to dealer and it is and active exhaust sensor module which needs to be replaced. Incase anyone else is experiencing this issue. Did not notice any difference in performance, but still babying the car due to break in period.
     
  2. Paladin06

    Paladin06 Have Guns Will Travel Staff Member Hellcat Car Club Gold Supporting Member

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    Do a search here. Several had this issue.
     
  3. Digger

    Digger Hellcat Member

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    Thank you...I searched but could not find...could you please provide a link?
     
  4. Paladin06

    Paladin06 Have Guns Will Travel Staff Member Hellcat Car Club Gold Supporting Member

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  5. fnkychkn

    fnkychkn swollen member Gold Supporting Member

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    New TSB ( 18-035-15A ) released to address P121B & P1217.
     
  6. HCone

    HCone Gold Member

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    Hi FC
    Can you post a copy of the TSB ?
     
  7. Paladin06

    Paladin06 Have Guns Will Travel Staff Member Hellcat Car Club Gold Supporting Member

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