Audizine - An Automotive Enthusiast Community

Results 1 to 5 of 5
  1. #1
    Established Member Two Rings
    Join Date
    Jun 17 2011
    AZ Member #
    77032
    Location
    Vernon, CT

    05 a4 1.8t Trans stuck in limp mode

    Guest-only advertisement. Register or Log In now!
    On the highway the other day I went to pass on the highway, the tranny hesitated, then CLUNK! And the PNDS lit up instantly. I limped her home and scanned it. I'm getting code p1825 "pressure control valve 3 for auto transmission -n217. Short circuit to b+ (static)" I tried clearing it but goes right back to limp mode. I currently have the trans pan off and the wiring to the solenoids looks good. Anybody know which solenoid is #3 n217? There seems to be three green solenoids and three black...are these interchangeable ( green for green) etc?
    Thanks
    2005 USP-APR k04,Kinectic exhaust manifold, techtonics downpipe, apr inlet, carbonio, boost brothers Fmic,VMR test pipe, st coilovers, b5 s4 brakes, 517 valve body

  2. #2
    Established Member Two Rings markcm's Avatar
    Join Date
    May 19 2009
    AZ Member #
    42690
    My Garage
    04 A A4 Avant 1.8 sport, 02 passat 1.8t Wagon, 00 A4 Avant 1.8t
    Location
    Bellingham, WA

    Pressure regulating valves n215 n216, n217 N218

    Did you figure this out?

    I have a re-occurring fault for n216 which is said to be responsible for smooth shifting. Car keeps dropping in to limp mode.

    Did you end up replacing any of your n21x valves or find out if they are interchangeable, or find a source for them?

  3. #3
    Established Member Two Rings markcm's Avatar
    Join Date
    May 19 2009
    AZ Member #
    42690
    My Garage
    04 A A4 Avant 1.8 sport, 02 passat 1.8t Wagon, 00 A4 Avant 1.8t
    Location
    Bellingham, WA

    Help identifying ZF 5HP-19 solenoid by "N21x" numbers.

    Is anyone familiar with these 5HP-19 transmissions? I'm having the same problem.

    I've dropped the pan and I'm checking out my valve body on the trans. I've got a few q's.

    It has a wire harness, not a ribbon cable so I think that's ok. I cant figure out how to identify which solenoid is N216, pressure regulating valve.

    Also, The re-occurring error I am getting says that N216 is open or shorted, but when I scan with vagcom, vagcom constantly drops the connection every 10 seconds or so but the N216 signal is always present when it is scanning.

    I just rotated the positions of all but one of the solenoids (respective to color). The far right/passenger side green solenoid was blocked in place as seen in the image. After moving their positions (respective to color) I still get the same N216 open or short fault.

    The error always says the problem is N216 open or short but also when I use measure blocks, all the N21x solenoids all read .045v and nothing changes when I unplug them. I'm wondering if I maybe have a TCU problem.

    Does anyone know where the TCU is on a 2004 A4, under the ECU in the engine compartment , or under passenger side floor?

    And do you know how to identify which solenoid is which?

    Thanks for help. Here's a picture from the rear looking up at my valvebody:


    Last edited by markcm; 09-01-2014 at 12:52 PM.

  4. #4
    Senior Member Three Rings Toolaa's Avatar
    Join Date
    Aug 03 2013
    AZ Member #
    120196
    My Garage
    2004 A4 Quattro 1.8T
    Location
    Ellicott City, MD

    I thought the TCU is directly under the ECU.


    Sent from my iPhone using Tapatalk

  5. #5
    Established Member Two Rings markcm's Avatar
    Join Date
    May 19 2009
    AZ Member #
    42690
    My Garage
    04 A A4 Avant 1.8 sport, 02 passat 1.8t Wagon, 00 A4 Avant 1.8t
    Location
    Bellingham, WA

    Quote Originally Posted by markcm View Post
    Is anyone familiar with these 5HP-19 transmissions? I'm having the same problem.

    I've dropped the pan and I'm checking out my valve body on the trans. I've got a few q's.

    It has a wire harness, not a ribbon cable so I think that's ok. I cant figure out how to identify which solenoid is N216, pressure regulating valve.

    Also, The re-occurring error I am getting says that N216 is open or shorted, but when I scan with vagcom, vagcom constantly drops the connection every 10 seconds or so but the N216 signal is always present when it is scanning.

    I just rotated the positions of all but one of the solenoids (respective to color). The far right/passenger side green solenoid was blocked in place as seen in the image. After moving their positions (respective to color) I still get the same N216 open or short fault.

    The error always says the problem is N216 open or short but also when I use measure blocks, all the N21x solenoids all read .045v and nothing changes when I unplug them. I'm wondering if I maybe have a TCU problem.

    Does anyone know where the TCU is on a 2004 A4, under the ECU in the engine compartment , or under passenger side floor?

    And do you know how to identify which solenoid is which?

    Thanks for help. Here's a picture from the rear looking up at my valvebody:



    This turned out to be a bad TCM. I got a replacement from ebay which fixed the limp mode and faults I was getting.



Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


    © 2001-2019 Audizine, Audizine.com, and Driverzines.com
    Audizine is an independently owned and operated automotive enthusiast community and news website.
    Audi and the Audi logo(s) are copyright/trademark Audi AG. Audizine is not endorsed by or affiliated with Audi AG.