That’s exactly what I thought, but absolutely no codes stored. I have VCDS.It's very odd, that you're seeing an abs light, with no error code showing on a scan. What scan tool did you use? Any warning/alarm condition is stored, along with it's details, and will remain, even after the fault is rectified, unless cleared via OBD port.
Mac.
So, I'd suspect the dash cluster, or connections to it.That’s exactly what I thought, but absolutely no codes stored. I have VCDS.
Also, check ECU connector.So, I'd suspect the dash cluster, or connections to it.
Mac.
I know where the ecu connector is, how wou I check the dash cluster? I changed out the Yaw sensor today, and the same as usual, 5 miles or so and it does the same.Also, check ECU connector.
Mac.
Great, thanks for that, its much appreciated! This is absolutely doing my head in now. The main issue is the Mot is due in November, and I can’t see how I’m going to get this sorted. There’s no way it’ll not beep and flash it’s lights in the 45 mins on the ramp. I’d happily to get it fixed, but with this blithe issue it is it really wants someone who knows their stuff. I’ve researched this to death now, and seem to be going around in circles. You suggesting ecu loom, plugs etc does put me on another path to the usual brake switch, abs sensors, bearings, yaw sensor etc. I’ve replaced so much on it, imagine if this was a garage randomly throwing bits at it!Check this from Rosstech http://wiki.ross-tech.com/wiki/index.php/01314#:~:text=01314 - Engine Control Module: No Communications,-Possible Causes&text=If power is missing or,addition to a no-start.
Sounds like an ECU or ECU connector problem, that is preventing the ECU from dealing with errors as it should.
I'd start with the ECU connector, and the loom into the engine compartment, on the engine side of the bulkhead.
I'll have a look at the electrical schematic on the morning, see if I can give any clue.
Mac.
Possibly? But the hand brake light goes out on the dash when off, and on with it up, so I can’t see it’s that simple. I may try it with my other A2 to see.Would it not do this if the handbrake wasn't properly off, or the switch was faulty, so the car doesn't know the handbrake is off?
This is absolutely doing my head in now. The main issue is the Mot is due in November, and I can’t see how I’m going to get this sorted. There’s no way it’ll not beep and flash it’s lights in the 45 mins on the ramp. I’d happily to get it fixed, but with this blithe issue it is it really wants someone who knows their stuff.
I have had the same issue, do you get brake lights when all the warning lights are lit on the dash? With warnings illuminated I had no brake lights, a scan reported an issue with the brake light switch but came back as ‘intermittent’ or ‘indeterminable’ signal (I’ll try and find the scan report and be more specific). I had, for no better word of it, a bit of a fiddle and shove around under the dash above the pedals and the issue has gone away, unless I have to stomp on the stop pedal and it comes back, but usually resets once the car is switched off and on. I would suggest changing the switch as a first port of call, mine I suspect is on the way out and gets jammed if excessive force is used but is fine in normal day to day use. It’s on the to do list before the winter sets in!Hi everyone,
It happens pretty much every drive now, where the beep shouts at me and this comes up:
View attachment 99651
My most likely guess is a faulty ABS sensor? Although I'm really not sure. Could anyone identify this?
Thanks much,
-Saff
faults
Thanks, I’ve had the ECU out today and had a good look, things look ok and no signs of damp or damage and the plugs seem ok and locate into place ok. I used some contact cleaner I had which I had to use on our old Volvo 850 window switches every few months. I also took out the headligh to clean the earth there.I think that the fact that the dash shows errors, that are not stored in the ECU, or are not being reported via the OBD port, points to an ECU related fault. Until the ECU is fully functioning, we don't know if there are other, maybe ABS related faults on the car.
Because the car runs, and there is no physical manifestations of problems, I am guessing, (that word again), that the ECU itself is OK.
I'd remove the ECU, check for damage, and dampness, and then check the plugs and sockets for cleanliness and security when latched.
Clean with a contact cleaner, (not WD40), and allow to dry before reassembling. WD40 do a branded contact cleaner which is good.
Mac.
Good call! I’ve not checked that, I am however on my 3rd switch in less than a year! no1 went, no2 was a black one which was rubbish, and now the green one which seems ok. Since the green switch I’ve not had and faults logged. I will go for a drive tomorrow to try this out.I have had the same issue, do you get brake lights when all the warning lights are lit on the dash? With warnings illuminated I had no brake lights, a scan reported an issue with the brake light switch but came back as ‘intermittent’ or ‘indeterminable’ signal (I’ll try and find the scan report and be more specific). I had, for no better word of it, a bit of a fiddle and shove around under the dash above the pedals and the issue has gone away, unless I have to stomp on the stop pedal and it comes back, but usually resets once the car is switched off and on. I would suggest changing the switch as a first port of call, mine I suspect is on the way out and gets jammed if excessive force is used but is fine in normal day to day use. It’s on the to do list before the winter sets in!
Mine must have been done before, the lower dash trim in that location is not what I’d describe as factory fittedGood call! I’ve not checked that, I am however on my 3rd switch in less than a year! no1 went, no2 was a black one which was rubbish, and now the green one which seems ok. Since the green switch I’ve not had and faults logged. I will go for a drive tomorrow to try this out.
Yes eBay. The green switch seems so much better quality than the black ones.Mine must have been done before, the lower dash trim in that location is not what I’d describe as factory fitted
Where did you order the green switch from? I’ve seen them on eBay, just want to make sure I get the best I can as I’ve read it’s not a particularly enjoyable job to do.