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Discussion Starter · #1 ·
I need to get a brake and light certification on a 2007 Beetle. I had it checked and it passed everything but when the technician pulled it up to the office just before it came to a stop the abs pump triggered momentarily and he failed it. I replaced all the wheel sensors and polished the reluctors until they shine. It did change it slightly, now it only triggers with just the right pedal pressure and an instant before the wheels stop turning.

I just got my ross tech yesterday and am only starting to figure it out. Is it possible to check the static resistance or whatever on the individual sensor circuits to see if there is one out of spec? It is possible that there is a bad/ corroded connection in the wiring somewhere but if there is it would help to know which sensor circuit.

If not does anyone know where those circuits ultimately plug into so I can check them with a dvom?

I can't tell you how happy I am that MY daily driver has no electronics or seat belts!
 

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I would start with a full auto scan and you can do a live data output test, confirm the abs sensors are working, see the status of the abs system, abs pump, activation, etc.

This video, can give you an idea; of working with the abs system in vcds.

 

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Discussion Starter · #4 ·
Post script to previous post. When I connected the Ross it did have a code for the rr wheel sensor but there was no dash warning light. It cancelled with no problem and has not come back. I have done several Google searches and have not found anything on checking the speed sensor circuits. Tried the ross tech wiki but did not find anything applicable.

Also the airbag light is on, the accident that totaled the car was a 6 foot long crease in the left quarter panel. It was enough to blow the drivers seat air bag. I was hoping that the Ross-Tech had the capability to fix it but they (probably wisely) decided not to get into that area. So there are people out there that claim to be able to reset the modules but I have never had it done so don't know who is good and who is not. Does anyone have someone they trust and what will I need to send them.

When I did the bodywork I noticed what I believe to be an air bag sensor (has yellow connectors) just behind the left rear trim panel bolted to the floor. I am guessing that this is the sensor that triggered the air bag so would this be what needs to be reset or does it just send a signal to the air bag module which is what needs to be reset.

Sorry to be such a pain but as of right now I am totally out of my element on this thing.
 

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The abs code may have been an old code that triggered the light and all the replacement of parts you did solved the problem. If you cleared it and it stays away then it should be fine. On a related note, now you can see how vcds saves you money. Replacing just the right rear sensor instead of all of them.

VCDS is also capable of looking at the airbag module. A full auto scan will tell you which bag or connection is giving you grief. Or you can look directly into the air bag module by clicking on it in vcds.
 

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Discussion Starter · #7 ·
The first thing I did was to do a full scan. I saved it but have no idea where it was saved to or how to find it.

Where I am at on the brakes, with the car jacked up and the ross connected if I spin the individual wheels they register up to however fast I spin them. However driving the car three of the wheels will go up to 2 KPH and the right front will go up to 5KPH and the system locks, not the wheels but the data output. If it happens to fall back to zero before the vehicle stops moving it will momentarily trigger the ABS pump.

It is not setting any codes so have no idea of what the h... is happening. I have dug through everything I can find on line, u tube and whatever and have not found anything even close to what I have. What 77 years of life has taught me is that if something weird is going to happen it will happen to me. This morning I plan to just change the wheel sensor back to the original to see what happens. I have my doubts that it will help but we will see. If that fails I really need to find out where the sensor wires plug in on the other end so I can check each circuit with a dvom for comparison.
 

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Discussion Starter · #8 ·
OK Here is where I am at right now. I checked omage on the front sensors and found that the new sensors have slightly more omage than the old sensors so I put in the old sensors. the only change is that the right front wheel will now go up to 6KPH and the others stay steady at 2. I tried unplugging the rf sensor and now it registers 0 and the others still show 2. As stated when I spin the individual wheels they will go above 2 but with all 4 rolling it is 2 and 6 regardless of speed. It seems to lock the controller because it will not go back to zero now when you stop. If I go out and back into ABS it shows zero on all wheels but to get back to 255 which is apparently the base line I have to go out of VCDS completely and reload. then the first time I go into ABS the sensors all read 255. as soon as I start rolling it goes back to 2 and 6.

Obviously with the rf sensor unplugged it set a code but with everything connected no codes and no answers.
 

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Are you taking it for a drive and watching the sensor reading or just spinning the wheels by hand? If you haven’t already done so take it for a drive with a helper. They drive you watch vcds. One of the groups has a reading of all four sensors at once. The one that is not the same as the other three is the culprit. It should show your speed on each wheel sensor, close to what the speedo says.
 

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Discussion Starter · #10 ·
The answer is yes. a couple of posts ago I stated that driving it 3 wheels will show 2KPH and the right front shows 5KPH regardless of vehicle speed. After I reinstalled the original front sensors the rf shows 6KPH regardless of vehicle speed and the other 3 still show 2. I unplugged the rf sensor and obviously it shows 0 but the remaining 3 still only go up to 2. The point is that the individual wheels will show faster spinning them individually with the exception of the rf. I can not spin it faster than about 3KPH by hand. The presumption is that the problem is in the rf wheel wiring or the module, that is why I think that the next step is to compare the resistance between the front wheels circuits at wherever they are on the other end. Tracing wiring on it is next to impossible because they are packed pretty tight. So does anyone know where the sensor wires plug in on the vehicle end. My guess would be that it is the module on top of the ABS pump but I don't want to dig down to that until I know for sure.
 

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On my machine the logs for the autoscan are: C:\Ross-Tech\VCDS\Logs

Sensors should be 800-1800ohms.

Sounds like the system as a whole is not good. From my research the abs module is well known for being sensitive for power. Be sure to inspect and clean your battery box fuse area including the abs connector. That's how I fixed my abs issue (knocks wood).
 

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Discussion Starter · #12 ·
Thanks for the link but I spent an entire day looking at them and if anyone has experienced my issue they have not written about it. While I am not going to automatically rule out a bad connection, I.E. corrosion this car appears to have spent its entire life in a dry climate. It came out of Las Vegas and that is as hot and dry as anyplace in the continental US. There is not a hind of rust or corrosion anywhere on the car. The battery fuse box is the only thing on the car that is easily accessible so is worth a try.

The new front sensors are in the 1200ohm range the ones that came off are in the 1100 range. It is highly unlikely that 2 sensors would cause the exact same problem so I have ruled them out.

It is more than the system that is not good, Having started with an old 500 SL my experience is where electronics are concerned German cars as a whole are a GIANT PITA.
 

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Discussion Starter · #13 ·
I dug Down to the ABS pump and disconnected the wiring connector. I traced the RF sensor wires to the plug and checked the circuit. With the sensor plug jumped the circuit resistance at the ABS plug is 0.1. Plugged into the sensor the resistance at the pump plug is exactly the same as the resistance of the sensor. So if it is not the sensor and is not the circuit that only leaves one thing, the module.
Post full scan so we can see. I am going through similar things and heavily researched. On the airbag issue I bought the reset gizmo but not here yet but optimistic of the info in forums and reviews. VAG Airbag Light System Reset Crash Data Fault Memory Erase Tool For VW / AUDI | eBay
Let me know if the tool works. If it does it will undoubtedly be cheaper than having someone else do it.
RE: full scan I tried the link and got a message file not found. When I get more time I will search further and if I find it I will post it.
 

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Discussion Starter · #14 ·
OK I finally found where the original scan should be, nothing there. I just installed the replacement module and attempted to program. Did not realize that I needed the original scan for information. Soooooo can I plug the original module in without connecting the brake lines and rerun the scan. If so how do I save it, I clicked on the save button the last time and saw nothing about it saving. Don't know if this is normal or not.

BTW the replacement is a used module with the exact same part number.

As far as information is concerned, follow this closely because if not you might miss something. I attached a drawing of where the wheel sensors are in the ABS plug. What was happening was that spinning the wheels individually they seemed to react properly. Spinning by hand I could not get more than 3 or 4 KPH but they all responded. With all wheels on the ground the rear and left front would show 2kph before I backed out of the garage. as soon as I started forward motion the right front would show 6kph and that is where VCDS would freeze up and would not change regardless of vehicle speed, even when stopped. I traced all the wheel circuits to the plug and found between .2 and .4 ohms in all the circuits. With the sensors connected all circuits read the same at the plug as at the wheel sensor. So having eliminated all that I concluded that the problem had to be in the module.

The codes I am presently getting are 00778 Steering wheel sensor and 005 no or incorrect basic setting. I cancelled them and they immediately reappeared so they are hard codes.
 

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Discussion Starter · #15 ·
Finally figured it out, I plugged in the original controller and ran this scan. I believe that I am down to reprogramming the ABS controller and hopefully can pass the brake and light test. Don't know how much of this information is corrupted as I have been disconnecting and reconnecting, replacing and whatever trying to find and fix.

Sunday,11,July,2021,17:46:15:28321
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 21.3.0.0 (x64) HEX-V2 CB: 0.4544.4
Data version: 20210226 DS325.0
www.Ross-Tech.com


VIN: 3VWRG31Y97M414486 License Plate: TOCOME
Mileage: 164130km-101985mi Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 1Y (1Y - VW New Beetle Cab (2003 > 2010))
Scan: 01 02 03 08 15 17 19 25 26 29 35 37 39 46 54 56 65 75

VIN: 3VWRG31Y97M414486 Mileage: 164130km-101985miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 06A-906-032-BGP.lbl
Part No SW: 07K 906 032 AA HW: 07K 906 032 AA
Component: NB R5 AT G 9654
Revision: --H01--- Serial number: VWZ5Z0G2158068
Coding: 0000003
Shop #: WSC 00066 000 00000
VCID: 6889B11D3E75315B273-803C

2 Faults Found:
001299 - Incorrect Immobilizer Key
P0513 - 008 - - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 0 km
Time Indication: 0

Freeze Frame:
RPM: 1275 /min
Load: 32.1 %
Speed: 0.0 km/h
Temperature: 68.0°C
Temperature: 54.0°C
Absolute Pres.: 970.0 mbar
Voltage: 11.430 V

000369 - Fuel Trim; Bank 1
P0171 - 001 - System Too Lean - Intermittent
Freeze Frame:
Fault Status: 00110001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 164133 km
Time Indication: 0

Freeze Frame:
RPM: 1588 /min
Load: 45.5 %
Speed: 78.0 km/h
Temperature: 97.0°C
Temperature: 50.0°C
Absolute Pres.: 970.0 mbar
Voltage: 13.589 V

Readiness: 0110 1101

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Address 02: Auto Trans Labels: 09G-927-750.clb
Part No SW: 09G 927 750 FM HW: 09G 927 750 FM
Component: AQ 250 6F 0921
Revision: 00H66000 Serial number:
Coding: 0000008
Shop #: WSC 00000 000 00000
VCID: 015F8CB93D1FE01380D-513C

4 Faults Found:
01683 - Wheel Speed Signals / Vehicle Speed
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 2
Fault Frequency: 1
Reset counter: 192
Mileage: 164135 km
Time Indication: 0

01679 - ABS Wheel Speed Signal; Front Left
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 2
Fault Frequency: 1
Reset counter: 192
Mileage: 164135 km
Time Indication: 0

01680 - ABS Wheel Speed Signal; Front Right
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 2
Fault Frequency: 1
Reset counter: 196
Mileage: 164135 km
Time Indication: 0

01681 - ABS Wheel Speed Signal; Rear Left
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 2
Fault Frequency: 4
Reset counter: 191
Mileage: 114554 km
Time Indication: 0


-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1C0-907-37x-ESP-F.lbl
Part No: 1C0 907 379 Q
Component: ESP FRONT MK60 0101
Coding: 0019978
Shop #: WSC 00066 000 00000
VCID: 3829215D2E4561DB773-5160

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 1T0-909-605.lbl
Part No: 6Q0 909 605 AL
Component: 01 AIRBAG VW71 0811
Coding: 0012337
Shop #: WSC 22600 444 100814
VCID: 015F8CB93D4FE01380D-8054

Subsystem 1 - Component: BF-Gewichtsens.

3 Faults Found:
00654 - Seat Belt Tensioner Igniter; Driver Side (N153)
001 - Upper Limit Exceeded
00472 - Control Module for Brake Boost (J539)
013 - Check DTC Memory - Intermittent
01226 - Crash Data Stored for Side Airbag; Driver Side
000 - -

-------------------------------------------------------------------------------
Address 17: Instruments Labels: None
Part No: 1C0 920 803 E
Component: KOMBI+WEGFAHRS. M73 V01
Coding: 11234
Shop #: WSC 00066
VCID: 1F1BEAC1AEAB36E3969-4B00

1 Fault Found:
00771 - Fuel Level Sensor (G)
30-00 - Open or Short to Plus

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 6N0-909-901-19.lbl
Part No: 6N0 909 901
Component: Gateway K<->CAN V012
Coding: 00006
Shop #: WSC 00066
VCID: 70B9D97D03B5F99B7F3-4B00

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1C0-920-xxx-25.clb
Part No SW: 1C0 920 803 E HW: 1C0 920 803 E
Component: IMMO X007
Revision: xxxxxxxx Serial number: VWZ5Z0G2158068
Shop #: WSC 20413 002 1048576
VCID: 1F1BEAC1ABAB36E3969-513C

No fault code found.

-------------------------------------------------------------------------------
Address 26: Auto Roof Labels: 1Y0-959-255-HYD.lbl
Part No: 1Y0 959 255 C
Component: VSG NBC ¤
Shop #: WSC 00000 000 00000
VCID: 40D949BD7695291BCF3-513C

1 Fault Found:
00532 - Supply Voltage B+
002 - Lower Limit Exceeded - Intermittent

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 1C0-959-799.lbl
Part No: 1C0 959 799 G
Component: 6J Komfortgerát HLO 0004
Coding: 00256
Shop #: WSC 00066
VCID: 3B233E511A734AC39A1-4B00

Subsystem 1 - Part No: 1Y1959801C
Component: 6J Tõrsteuer.FS KLO 0005

Subsystem 2 - Part No: 1Y1959802D
Component: 6J Tõrsteuer.BF KLO 0005

Subsystem 3 - Part No: 1Y0959811
Component: 6J Tõrsteuer.HL KLO 0005

Subsystem 4 - Part No: 1Y0959812
Component: 6J Tõrsteuer.HR KLO 0005

7 Faults Found:
01330 - Central Control Module for Central Convenience (J393)
53-10 - Supply Voltage Too Low - Intermittent
01331 - Door Control Module; Driver Side (J386)
53-10 - Supply Voltage Too Low - Intermittent
00932 - Electric Window Motor; Drivers Side (V147)
62-00 - No or Incorrect Adjustment
01332 - Door Control Module; Passenger Side (J387)
53-10 - Supply Voltage Too Low - Intermittent
00933 - Electric Window Motor; Passenger Side (V148)
62-00 - No or Incorrect Adjustment
01333 - Door Control Module; Rear Left (J388)
53-10 - Supply Voltage Too Low - Intermittent
01334 - Door Control Module; Rear Right (J389)
53-10 - Supply Voltage Too Low - Intermittent

-------------------------------------------------------------------------------
Address 56: Radio Labels: 1J0-035-18x-56.lbl
Part No: 1C0 035 196 CL
Component: RADIO DE2 0006
Coding: 06031
Shop #: WSC 00066
VCID: 6B83CE112A931A434A1-51A8

3 Faults Found:
00856 - Radio Antenna
44-00 - Short Circuit
65535 - Internal Control Module Memory Error
00-10 - - - Intermittent
00668 - Supply Voltage Terminal 30
07-10 - Signal too Low - Intermittent
 

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Discussion Starter · #16 ·
Final post on problem. I replaced the ABS pump with a used one that has the exact same part number. Once I cleared all the codes I created in my search for answers I was able to clear the steering angle sensor codes and all seems to be well. Took it for a long drive through residential streets this morning and no low speed activation. I have an appointment to get reinspected for the brake and light certificate Friday at 1:00.

Just a thought. I noticed that German electronic components are generally VDO. Is that short for Voodooo? If so it goes a long way toward explaining their electronics.
 

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The ecu memory, will save everything over time, until it is manually removed; so, you might want to clear all codes and see what trouble codes, come back? The ecu and other controllers; will freak out, throw codes, if the battery gets low, is disconnected, things unplugged or the charging system is not working correctly.


Sent from my iPhone using Tapatalk
 

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After you clear codes and do a test drive; do another auto scan and post it here. Then, we can work through the codes that are left and go from there.

Good work so far; what are your thoughts on VCDS and how has it been, using it?

There is definitely a learning curve but it is a great tool, a solid value, rather then having to take your car to someone or god forbid, your local VW dealership!
 

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CONGRATS! I am new to VCDS and think if you took care of this issue you could could probably tackling pretty much anything. Airbag tool passed customs and in NJ. Should be here next few days. I see ALOT of low voltage codes and also a low battery 11.430. I would would definitely test the battery and charging system, might clear up alot of things.
 
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