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Thread: VAG-COM Error Code Help - 17087

  1. #1
    Registered User cmore's Avatar
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    VAG-COM Error Code Help - 17087

    Today my ABS light and stability/traction control light came on at the same time, but the car seemed to drive fine. I scanned for codes and got this:

    Control Module Part Number: 4B0 927 156 FL
    Component and/or Version: AG5 01L 4.2l5VT USA 0305
    Software Coding: 0000022
    Work Shop Code: WSC 02195
    1 Fault Found:
    17087 - Brake Switch B Circuit Malfunction
    P0703 - 003 - Mechanical Failure

    I am unable to clear the codes from the transmission control unit and the 17087 keeps coming back right away.

    Is this really a break switch problem or a bad transmission?

    Thanks,
    Chris
    '03 Audi RS6 | 034 Motorsports Stage 2 ECU + TCU | PSS9 Coil over shocks/springs | Hotchkis sway bars | Milltek exhaust systems/downpipes/cats | Hyperboost DV | Venair hoses | 034 Snub mount | 034 Density control arms

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    Quote Originally Posted by cmore View Post
    Today my ABS light and stability/traction control light came on at the same time, but the car seemed to drive fine. I scanned for codes and got this:

    Control Module Part Number: 4B0 927 156 FL
    Component and/or Version: AG5 01L 4.2l5VT USA 0305
    Software Coding: 0000022
    Work Shop Code: WSC 02195
    1 Fault Found:
    17087 - Brake Switch B Circuit Malfunction
    P0703 - 003 - Mechanical Failure

    I am unable to clear the codes from the transmission control unit and the 17087 keeps coming back right away.

    Is this really a break switch problem or a bad transmission?

    Thanks,
    Chris

    I am on my third brake light switch.....easy/cheap fix

  3. #3
    Registered User cmore's Avatar
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    Brake Light Switch

    Why would this fault code make my ABS and traction control light turn on? Where is the brake light switch? Under the dash?

    Are you sure from these codes that it is not my transmission? Seems like these codes happen a lot with a tranny on the way out.

    Thanks!
    '03 Audi RS6 | 034 Motorsports Stage 2 ECU + TCU | PSS9 Coil over shocks/springs | Hotchkis sway bars | Milltek exhaust systems/downpipes/cats | Hyperboost DV | Venair hoses | 034 Snub mount | 034 Density control arms

  4. #4
    Registered User V8weight's Avatar
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    As Twinsteve said, this is you lucky day. Your brake light switch is bad, it's cheap, and it's easy to replace. Your abs and esp light came on because...........your brake input is monitored by the abs and esp, go figure. Search brake light switch, and you will find a picture write up on how to remove the lower dash cover and how to replace it, it's attached to the brake pedal assembly.
    Pat - Eisenmann race exhaust, Catless downpipes, KW V3's, H-Sport sways, 034 Control arms, Apikol diff mount, Sterns motor mounts, Forge dv's, Stainless brake lines, Venair hoses, Sportec vent mod, Euro tails, Viper Tuned ecu/tcu, DPE S20's 19x9.5, 275/30/19's

  5. #5
    Registered User as350's Avatar
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    Yes, what others have said. A very easy way to confirm that it's your brake light switch located on the brake pedal assembly, is to try to use your cruise control. If your cruise control doesn't work, it's your brake switch.

  6. #6
    Registered User TozoM8's Avatar
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    The 17087 code comes on if you start the car without holding the brake. If you turn the car off and start it with the brake pressed it will clear the code and it will not come back unles you start without brake.
    05 Cayenne turbo

  7. #7
    Registered User JRS-RS6's Avatar
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    Quote Originally Posted by TozoM8 View Post
    The 17087 code comes on if you start the car without holding the brake. If you turn the car off and start it with the brake pressed it will clear the code and it will not come back unles you start without brake.
    Is that really true? Let me see -- Do I put my foot on the brake when I start the car or not? Since most of my other cars have been stick I guess I do.
    2003 RS6 Avus Silver

  8. #8
    Registered User V8weight's Avatar
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    Quote Originally Posted by TozoM8 View Post
    The 17087 code comes on if you start the car without holding the brake. If you turn the car off and start it with the brake pressed it will clear the code and it will not come back unles you start without brake.
    I don't know about that, I reach in and start my car every morning and afternoon to let it warm up. My car is rarely started with me in it, and my foot on the brake.
    Pat - Eisenmann race exhaust, Catless downpipes, KW V3's, H-Sport sways, 034 Control arms, Apikol diff mount, Sterns motor mounts, Forge dv's, Stainless brake lines, Venair hoses, Sportec vent mod, Euro tails, Viper Tuned ecu/tcu, DPE S20's 19x9.5, 275/30/19's

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    Yeah, I've heard the same thing repeated here before and I'm not buying it.....I start my car everytime with my foot off the brake and have never coded because of it.


    -Todd

  10. #10
    Registered User TozoM8's Avatar
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    Scroll down to the middle (2.7) of the page.
    http://www.ross-tech.com/vag-com/faq_2.html
    05 Cayenne turbo

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    Another simple fix that worked for me with 100% certainty when I had this problem, girlfriend to myself while following me home about 3 days after it started, "Hey, your brake lights aren't working."

  12. #12
    Registered User ben916's Avatar
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    Quote Originally Posted by toddc View Post
    Yeah, I've heard the same thing repeated here before and I'm not buying it.....I start my car everytime with my foot off the brake and have never coded because of it.


    -Todd
    I do the same thing:
    1. unlock the doors/truck
    2. put all the crap in the trunk
    3. the girls (8yo/4yo) open the rear doors and get into their PINK car seats.
    4. Passenger door is opened by me, I start the car up by leaning over; to warm it while I buckle the kids
    5. buckle the kids.
    6. squeege the windows
    7. get in, turn on the rear defogger and heat
    8. she kicks down from high idle and off we go.


    Also didn't Joshua investigate the VIPER app that would start your car from your phone - there seemed to be an issue of immobilizer or door locks or something...
    SOLD - 03 RS6 Avus (905355)
    Current - 03 Toyota Tacoma 4x4 double cab - the YETI, lifted, winched, snorkeled, lockered, skidded, geared

  13. #13
    Registered User JSRS6's Avatar
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    That is correct, Ben. I had the Viper Smart Start system installed back in the summer. The only issue is i have to unlock the car with the remote, THEN remote start the car. Then lock again. If i dont, the car will start, but the alarm will go off because the car thinks its being stolen. I can still unlock the car and it stops the alarm. Never coded from the brake not being depressed either, regardless of how its started.
    Avus RS 6, RNS-E/BT/RVC, Eurocharged/MTM, SuperSports, PSS9/Hotchkis, SS Lines/EBC Reds, FMU/BMC, Sportec vents, 007's, 9500ci, Black Optics/Headlights/Trim/Rims, CC; coming soon: stage 3 snow meth

  14. #14
    Registered User JSRS6's Avatar
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    Oh, and a great feature with the immobilizer defeat module, is that the spare key fob chip is actually inside, so when it remote starts, it sets the memory to whatever you have set. So i remote start the car, and before putting my key in the ignition, i can set the car up how i want. and then everytime i remote start the car, those values are set(seats, climate, mirrors, etc...)
    Avus RS 6, RNS-E/BT/RVC, Eurocharged/MTM, SuperSports, PSS9/Hotchkis, SS Lines/EBC Reds, FMU/BMC, Sportec vents, 007's, 9500ci, Black Optics/Headlights/Trim/Rims, CC; coming soon: stage 3 snow meth

  15. #15
    Registered User JSRS6's Avatar
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    Quote Originally Posted by ben916 View Post


    Also didn't Joshua investigate the VIPER app that would start your car from your phone - there seemed to be an issue of immobilizer or door locks or something...
    Lol, ive been "investigating" it for about 6 months now!
    Avus RS 6, RNS-E/BT/RVC, Eurocharged/MTM, SuperSports, PSS9/Hotchkis, SS Lines/EBC Reds, FMU/BMC, Sportec vents, 007's, 9500ci, Black Optics/Headlights/Trim/Rims, CC; coming soon: stage 3 snow meth

  16. #16
    Registered User 4everRS's Avatar
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    The AstroStart brand does this as well. I had it in my old A6. The installer had to set it up so when the "start" button was pressed, the car would first unlock, then start, then lock. He set it so it would run for 15 mins and shut off if I didn't have the key in the ignition by then.

    I was thinking about having it put on the beast, but the 400 bucks happened to be spent on a different item
    Avus Silver RS6 - Viper Stage 2 ECU/TCU - Water/Meth Injection - Frozen Rotors - Hbars - clear corners - Hella smoked tails - gutted precats

  17. #17
    Registered User JSRS6's Avatar
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    Mine is preset at 12 min. And I love being able to start my car from anywhere I get a signal on my iPhone.
    Avus RS 6, RNS-E/BT/RVC, Eurocharged/MTM, SuperSports, PSS9/Hotchkis, SS Lines/EBC Reds, FMU/BMC, Sportec vents, 007's, 9500ci, Black Optics/Headlights/Trim/Rims, CC; coming soon: stage 3 snow meth

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