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2012 Error Code P0418

Discussion in '2nd Gen Tundras (2007-2013)' started by Rocketnhouston, Mar 5, 2020.

  1. Mar 5, 2020 at 3:26 PM
    #1
    Rocketnhouston

    Rocketnhouston [OP] New Member

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    Jeremy
    2012 Tundra 4.7 Crewmax 2wd
    Hello everyone, looking for a little guidance on the error code I just received from my inspection.
    The inspector was baffled as I'm in Texas and he stated that those really only applied to Cali.
    Anyway, the error code is P0418: Secondary Air Injection System Relay ""A"" Circuit Malfunction...

    I have no clue where to start on this thing...

    Any ideas??

    Thanks!!
     
  2. Apr 19, 2020 at 3:57 PM
    #2
    Bullitt

    Bullitt New Member

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    09 Tundra double cab
    I have the same code on my 09 with the 4.7. A friend of mine who is out on disability from Toyota said it was more than likely the Air Pump located in the passenger fender well. I changed that along with the Air Switching Valve. Cleared the code, drove about 50 miles and all was okay. Next day the code came back on. I'm going to do the other valve on the driver side and see what happens. I'm not looking forward to changing the other air pump as it's under the intake. I'll post back in a week or so after the part gets here.
    I hope someone else sees this and can weigh in.
     
    Last edited: Apr 19, 2020
  3. Apr 22, 2020 at 5:24 PM
    #3
    blackdemon_tt

    blackdemon_tt Battery Slayer

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    TRD Sway Bar, Roll covers USA bed cover
  4. Apr 24, 2020 at 7:28 AM
    #4
    jruggieri

    jruggieri New Member

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  5. Apr 24, 2020 at 5:25 PM
    #5
    Bullitt

    Bullitt New Member

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    So i just replaced the other Air Switching Valve on the drivers side, cleared the P0418 but as soon as i started her up the code came back.
    I guess next is the pump under the intake which I'm not thrilled about.
     
  6. May 16, 2020 at 6:54 PM
    #6
    Hdez87

    Hdez87 New Member

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    2010 black tundra crewmax limited
    Leveling kit ,22”moto metal on 33x12.50x22 nitto ridge grappler , pedal commander, flares, morimoto headlights, morimoto fog lights
    The secondary air pumps from Toyota are stupid money I believe It’s dorman who makes the replacement but Toyota does have a recall for these air pumps I believe they extended the warranty to 150000 or 10 yrs
     
  7. Jun 7, 2020 at 7:03 PM
    #7
    Bullitt

    Bullitt New Member

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    Just replaced the air pump under the intake today. Found a nice mouse nest and the pump was seized. Reset the code and so far so good.
     

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