ABS + Brake Lights and BEEP
Thread Starter
AudiWorld Senior Member
Joined: Apr 2009
Posts: 1,901
Likes: 0
ABS + Brake Lights and BEEP
I've been getting the ABS + Brake warning light with the warning beep on and off for the past few days. My initial guess was a bad wheels speed sensor but after pulling codes the only ABS/Brake fault was for "communication error with instrument cluster: intermittent".
Module Master's diagnostic survey says the symptoms indicate the ABS is not getting power. I'm going to check the fuses and connections and pull codes again later today but this doesn't sound right.
Anyone have any ideas what else this could be or what I should look for? The lights come on when braking moderately hard or after hitting bumps and then go away again. It seems like they are staying on longer and occurring more frequently. Sometimes the ABS light will turn off and the brake light will stay lit for a few minutes longer. There is no apparent change in braking performance and no weird behavior of the ABS system.
Module Master's diagnostic survey says the symptoms indicate the ABS is not getting power. I'm going to check the fuses and connections and pull codes again later today but this doesn't sound right.
Anyone have any ideas what else this could be or what I should look for? The lights come on when braking moderately hard or after hitting bumps and then go away again. It seems like they are staying on longer and occurring more frequently. Sometimes the ABS light will turn off and the brake light will stay lit for a few minutes longer. There is no apparent change in braking performance and no weird behavior of the ABS system.
Thread Starter
AudiWorld Senior Member
Joined: Apr 2009
Posts: 1,901
Likes: 0
Codes
Fault code scan results:
Engine
3 Faults Found:
18014 - Rough Road/Engine Torque Signal from ABS: Electrical Malfunction
P1606 - 35-10 - - - Intermittent
17883 - EVAP Leak Detection Pump: Malfunction / No Signal
P1475 - 35-10 - - - Intermittent
18058 - Powertrain Data Bus: Missing Message from Instrument Cluster
P1650 - 35-00 - -
ABS Brakes
1 Fault Found:
01203 - Electrical Connection between ABS and Instrument Cluster
03-10 - No Signal - Intermittent
Going to go search for these codes. In the mean time, anybody have experience with these codes and can pinpoint what they mean?
========================
Ok, so based on my searches I've determined that the ABS module is likely failing - this is causing the rough road signal error.
I will check some connections and other things to see if I can fix it, otherwise I will start planning on sending the ABS in to be rebuilt.
The Databus error is from removing the key while VAGCOM is still running, so I can ignore this one.
EVAP Leak thing: anybody know where this sensor is located?
Instrument cluster: probably has to do with the RS6 tune and can be ignored
will clear and see which one come back
Engine
3 Faults Found:
18014 - Rough Road/Engine Torque Signal from ABS: Electrical Malfunction
P1606 - 35-10 - - - Intermittent
17883 - EVAP Leak Detection Pump: Malfunction / No Signal
P1475 - 35-10 - - - Intermittent
18058 - Powertrain Data Bus: Missing Message from Instrument Cluster
P1650 - 35-00 - -
ABS Brakes
1 Fault Found:
01203 - Electrical Connection between ABS and Instrument Cluster
03-10 - No Signal - Intermittent
Going to go search for these codes. In the mean time, anybody have experience with these codes and can pinpoint what they mean?
========================
Ok, so based on my searches I've determined that the ABS module is likely failing - this is causing the rough road signal error.
I will check some connections and other things to see if I can fix it, otherwise I will start planning on sending the ABS in to be rebuilt.
The Databus error is from removing the key while VAGCOM is still running, so I can ignore this one.
EVAP Leak thing: anybody know where this sensor is located?
Instrument cluster: probably has to do with the RS6 tune and can be ignored
will clear and see which one come back
Last edited by donromani; Dec 24, 2009 at 10:03 AM. Reason: More info
AudiWorld Member
Joined: Aug 2007
Posts: 375
Likes: 0
From: Michigan
Not sure, but I believe the EVAP motor is in the trunk, passenger side under a piece of foam. You have to remove the fabric on the wall of the trunk to get to the foam that lies over top of it.
Again, not sure, just found what looked like a pump when I was putting my battery in the trunk. Hopefully, I'm not sending you on a wild goose chase....
Again, not sure, just found what looked like a pump when I was putting my battery in the trunk. Hopefully, I'm not sending you on a wild goose chase....
Thread Starter
AudiWorld Senior Member
Joined: Apr 2009
Posts: 1,901
Likes: 0
I believe we have the Bosch 5.3 (I do anyway according to VAGCOM)
The strange thing about the ABS problems I'm having is that they are totally inconsistent. I believe the drop in temperature has something to with it - typically the ABS warnings stop after the car has warmed up. Until then the tiniest bump or bit of harder brake pressure will set it off.
GL with yours!
Thread Starter
AudiWorld Senior Member
Joined: Apr 2009
Posts: 1,901
Likes: 0
Not sure, but I believe the EVAP motor is in the trunk, passenger side under a piece of foam. You have to remove the fabric on the wall of the trunk to get to the foam that lies over top of it.
Again, not sure, just found what looked like a pump when I was putting my battery in the trunk. Hopefully, I'm not sending you on a wild goose chase....
Again, not sure, just found what looked like a pump when I was putting my battery in the trunk. Hopefully, I'm not sending you on a wild goose chase....
Trending Topics
AudiWorld Super User
Joined: Jul 2005
Posts: 2,042
Likes: 4
AudiWorld Stories
Bringing Audi to Life for Audi Fans
10 Strangest Audi Designs That Actually Made Production
Joe Kucinski
2027 Audi Q7 and SQ7: Audi Upgraded EVERYTHING!
Michael S. Palmer
Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!
Verdad Gallardo
The Highs & Lows of Every Audi C-Class Generation
Joe Kucinski
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer
Brett Foote
10 Audi Features & Options We Miss the Most!
Joe Kucinski
Audi Recreates Crazy-Looking Speed Record Breaker From 1935
Verdad Gallardo
Coachbuilder Recreates the 1995 Audi TTS Concept
Verdad Gallardo
Every Audi V10 Car Ranked!
Joe Kucinski
Thread Starter
AudiWorld Senior Member
Joined: Apr 2009
Posts: 1,901
Likes: 0