A.b.s. And Fault Codes.

[Steve S.]

Dear All,

Well my abs light has been on for a while now,at first it went of on its own for a while but more recently its been on all the time.Fearing the worst(knackered pump unit) I invested in one of thoes fault code readers....a Genden VW/Audi/Seat/Skoda type.All that this through up was code 011f...speed sensor rear right-G44. Great relief all round! mind you ,I don't how much a new sensor is,but I guess it isn't as much as a pump unit! So meanwhile ,I take off said sensor and give it a bloody good clean and stick it back hoping for a miracle! No such luck... which is a set back. So next I disconnect the wiring of each underneath the car (fortunately I've got a pit in the garage which saves a lot of crushed pelvises) and stick a ohmmeter on each sensor in turn...same reading.So next, my suspicions aroused,I cross connect the two sensors(I need to extend one pair of wires to reach) The reader again shows a 011f fault. This proves the rhs sensor to be OK does it not? I also disconnected both sensors, the reader throws up two codes 011f and 0122(speed sensor left rear G46). So now I am confused

especially as at one point in all this the abs light went off and all seemed ok but it soon reverted to the fault and no amount of mucking about got back to that particular situation.

Right, so what is my next plan of attack?Did I read somewhere on these informed pages that someone reckoned that there was a junc. box some where under the battery that could be the villain?Does it seem sensible to suspect the onward section of wiring from the sensor junction or is it going to be more complicated, and alas, an abs pump unit fault, and in which case should the reader not show it?

Contributions as always most welcome!

Regards

Steve S.

[Steve S.]

Dear All,

Well, I followed my own advice in the end! I managed to unearth the multi plug that connects to the abs module(behind the battery&water expansion tank),identified the incoming wires from the wheel speed sensors, and having connected the two wires together at each connector underneath the back axle I stuck the circuit tester on each pair of pins.Sure enough, this identified a non- continuity in the black wire from the rhs sensor. I have temporarily bridged this break by scotch clipping in a wire and running it underneath the car. on connecting everything up (temp) a retest with the fault reader showed fault cured and the dreaded abs light has gone out! Excellent!!.Tomorrow I will look at the best way to do a more permanent job but the wire re-route looks fairly time consuming...ah well!

Regards

Steve S.

[Topbloke]

well done, managed to fix it and tell everyone !!!!!! . i find sometimes if you think out loud it all makes sense

[Mauser]

Steve,

Don't suppose there is in any spare wires in another loom you could use ?, sometimes I think they add them for different models ?.

Might be worth a look ?.

Anyway good luck

Simon