Speed Sensor or not??

[homer simpson]

Firstly, hope you are all safe in the current environment.

I have just come back from a 3 week trip which took over 7 weeks as I ended up stranded with no flights! Anyway, that's another story, now to the car...

My car was standing and when I realised I was stuck abroad, I got a family member to charge it up (was flat) and put some fuel in/take it for a drive. Car was fine and behaved itself with no faults (surprisingly) although I know there would be some under-voltage faults stored.

FF to present day and I started the car and moved it onto the driveway ready to be washed, parking brake on. After about 20 mins I realised I had to go get some meds so jumped in the car, started it and BOOM the ABS/ESP/Handbrake fault lights lit up. I drove it around the block, no change. I then cleared all the codes but the ABS one won't go away. It shoes as N/S/R speed sensor intermittent signal but having read some threads I'm not sure if it actually is this or something else? Bit of a coincidence it's happened after standing for a while. I did do a scan but saved it after I cleared the codes (Doh!) and so will scan again tomorrow. Battery was charged again fully but fault persists. Fuses all checked on both sides of the dash, no problems. Any more pointers on what to check before I order a new sensor? Also, anyone know the OEM or should I just buy from TPS? My bonnet has also decided not to open but that will be tackled tomorrow fingers crossed....

Thanks

[steamship]

Originally Posted by homer simpson

It shoes as N/S/R speed sensor intermittent signal but having read some threads I'm not sure if it actually is this or something else? ... Also, anyone know the OEM or should I just buy from TPS?

N/S is the left side, correct? If so, part number is 4E0927803D, superseded with F. O/S (right, in case I've got my sides wrong) is 4E0927804D, superseded with F.

[NightOwl]

What does the ABS fault say? Does the ABS work properly?

[homer simpson]

Originally Posted by NightOwl

What does the ABS fault say? Does the ABS work properly?

I'll rescan it today and post a log. Not sure how I can test the ABS

[NightOwl]

Originally Posted by homer simpson

I'll rescan it today and post a log. Not sure how I can test the ABS

Without traffic around, brake hard and see/hear/feel if any wheel locks or not. If you are used to braking hard until the ABS gets activated, does it feel and behave the same way now? Be careful though.

[homer simpson]

OK it has now thrown a hissy fit! I went to read the codes and see what is showing.

Firstly, the car doesn't have a N/S/R speed sensor, from what I gathered it's front left and rear right. I checked the N/S/R wheel and can't see one either.

With VCDS I tried to see what the ABS module is showing and it can't communicate with it now...and this has thrown up lots of faults. Parking brake, ABS and ESP were already there but now also headlamp, jacking light is on, level sensor, etc etc. My guess is that the ABS module is faulty and the car cannot determine lots of other data because of this and so it is throwing faults. These modules just show as DTC not supported or cannot read (or something to that effect).

Address 53: Parking Brake Labels: 4E0-910-801.clb
Part No SW: 4E0 910 801 D HW: 4E0 907 801 B
Component: EPB A4EC0230 H03 0230
Revision: --H03---
Coding: 0000731
Shop #: WSC 12982 000 1048576
VCID: 2019E2C9F6C1A42B732-8074

3 Faults Found:
01316 - ABS Control Module
008 - Implausible Signal - MIL ON
Freeze Frame:
Fault Status: 11101000
Fault Priority: 3
Fault Frequency: 23
Reset counter: 26
Mileage: 158728 km
Time Indication: 0
Date: 2020.04.15
Time: 14:33:38

Freeze Frame:
Voltage: 10.04 V
Count: 231

02596 - Rear Brake Pads Worn
008 - Implausible Signal
Freeze Frame:
Fault Status: 01111000
Fault Priority: 6
Fault Frequency: 1
Reset counter: 9
Mileage: 133232 km
Time Indication: 0
Date: 2015.09.24
Time: 00:02:20

Freeze Frame:
Voltage: 10.46 V
Count: 61

01312 - Powertrain Data Bus
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 3
Fault Frequency: 1
Reset counter: 66
Mileage: 158728 km
Time Indication: 0
Date: 2020.04.16
Time: 16:08:20

Freeze Frame:
Voltage: 10.66 V
Count: 20

Address 03: ABS Brakes Labels: 4E0-910-517.lbl
Part No SW: 4E0 910 517 K HW: 4E0 614 517 BT
Component: ESP 5.7 allrad H49 0650
Coding: 0001927
Shop #: WSC 02313 000 00000
VCID: 2B0305E58F077773D60-807E

1 Fault Found:
00290 - ABS Wheel Speed Sensor; Rear Left (G46)
012 - Electrical Fault in Circuit

Gateway Installation List: 4L0 910 468 A

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: Malfunction 0010
03-ABS Brakes -- Status: Cannot be reached 1100
05-Acc/Start Auth. -- Status: Malfunction 0010
06-Seat Mem. Pass -- Status: OK 0000
07-Control Head -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: OK 0000
0E-Media Player 1 -- Status: OK 0000
0F-Digital Radio -- Status: OK 0000
11-Engine II -- Status: Malfunction 0010
31-Engine other -- Status: Malfunction 0010
13-Auto Dist. Reg -- Status: Malfunction 0010
15-Airbags -- Status: Malfunction 0010
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
1D-Driver Ident. -- Status: OK 0000
1E-Media Player 2 -- Status: OK 0000
28-HVAC, Rear -- Status: OK 0000
34-Level Control -- Status: Malfunction 0010
36-Seat Mem. Drvr -- Status: OK 0000
37-Navigation -- Status: Malfunction 0010
38-Roof Electronics -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: Malfunction 0010
47-Sound System -- Status: OK 0000
4F-Centr. Electr. II -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: Malfunction 0010
55-Headlight Range -- Status: Malfunction 0010
56-Radio -- Status: OK 0000
57-TV Tuner -- Status: OK 0000
61-Battery Regul. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
65-Tire Pressure -- Status: OK 0000
67-Voice Control -- Status: OK 0000
6C-Back-up Cam. -- Status: Malfunction 0010
72-Door, Rear Right -- Status: OK 0000
76-Park Assist -- Status: Malfunction 0010
77-Telephone -- Status: OK 0000

[homer simpson]

Originally Posted by steamship

N/S is the left side, correct? If so, part number is 4E0927803D, superseded with F. O/S (right, in case I've got my sides wrong) is 4E0927804D, superseded with F.

That's correct and yes the part numbers are the same as what I found on ETKA so thanks for the clarification. There is a new/old stock on ebay which I might purchase as it's cheap. Firstly though, I will get the old sensor off and give it a clean incase there is some dirt ingress due to it standing.