Fault code 00290 ABS Light on

B

betadeltamad

Registered User
Joined
Jan 4, 2013
Messages
18
Reaction score
1
Points
1
Location
Wiltshire
Bought myself a cheap diagnostic tool off ebay when my abs light came on last week while driving on the motorway. Plugging it in, it shows fault code 290

Which in the provided booklet says that this is the wheel speed sensor on the right rear, believe to be offside rear

The sensor looked pretty grubby and was a pain to get out but this is now changed for a new one, used the diagnostic tool again, cleared the fault but as soon as it says clear, the abs light goes out and then straight back on again :(

I haven't driven the car forwards yet, but it was also beeping at me when you drive away and shows permanently the brake warning in the central display on the dash.

What else can I check/do?

Merry xmas
 
00290 - Ross-Tech Wiki

00290 - ABS Wheel Speed Sensor Rear Left (G46)
00290 - ABS Wheel Speed Sensor Rear Left (G46): Signal Outside Specifications
00290 - ABS Wheel Speed Sensor Rear Left (G46): Electrical Fault in Circuit
Possible Causes

Open Circuit in Wiring from/to ABS Wheel Speed Sensor Rear Left (G46)
ABS Wheel Speed Sensor Rear Left (G46) faulty

Possible Solutions

Check Wiring from/to ABS Wheel Speed Sensor Rear Left (G46)
Check ABS Wheel Speed Sensor Rear Left (G46)


00285 - ABS Wheel Speed Sensor Rear Left (G46): Mechanical Malfunction
Possible Causes

Excessive Air Gap between ABS Wheel Speed Sensor Rear Left (G46) and Rotor
Short Circuit in Wiring from/to ABS Wheel Speed Sensor Rear Left (G46)
ABS Wheel Speed Sensor Rear Left (G46) faulty

Possible Solutions

Check ABS Wheel Speed Sensor Rear Left (G46) Installation
Check Wiring from/to ABS Wheel Speed Sensor Rear Left (G46)
Check ABS Wheel Speed Sensor Rear Left (G46)


Have you checked the sensor ring in case its bent/damaged?

<tuffty/>
 
Last edited:
Your book is wrong, Autodata also says NSR (left rear).

When you remove the NSR sensor, check to see if there is any damage to the sensor pick up area. Doesn't take a lot for the pick up ring to get damaged/corroded and take a chunk out of the sensor.
 
  • Like
Reactions: <tuffty/>
The fact that the fault pings straight back would suggest sensor or wiring rather than anything mechanical with the pick up ring or air gap, mechanical faults like that on the old A3 abs system will only reapear when the car has been driven after codes cleared. Also if Ross Tek Wiki and AutoData both agree on the same side them trust them together over anything short of a dealer Vas tool.

Ewan. (Merry Christmas)
 
audi upgrades
Rather than start a new thread I thought I would add to this.

The same fault has occurred with my 2001 S3.

I plan to replace the sensor, as the cleared fault returned before I had driven anywhere. Please can someone confirm I have identified it correctly in the attached image.

Many thanks.
6bbdde401712953d2668a46030a1b0eb.jpg


Sent from my ONEPLUS A5010 using Tapatalk
 
Yes that is the bolt for the rear wheel speed sensor, thier a pita to open especially if its rusty and worn out like mine was, I had to smash a socket into it so I could ratchet it open. Then to top it off my sensor was stuck in the hub and that was also a pita to remove, I ended up smashing it out in pieces. Guess what the new sensor was also a pita to install due to limited space, I carefully tapped it in eventually using a flat screwdriver and a hammer, what a nightmare job :whistle2:
 
You must log in or register to reply here.

Similar threads

bengal
ABS fault code
Replies
0
Views
949
bengal
bengal
Audi_A31.8T
help!!! abs fault code??
Replies
8
Views
1K
epox
epox
Richierich84
Abs light on
Replies
8
Views
746
Richierich84
Richierich84
B
ABS light on
Replies
12
Views
1K
colicabcadam
C
shad
Abs light on
Replies
2
Views
850
shad
shad
Top
Back