Nanocom fault clearing question: different vehicle

[Tins]

Another member asked me for help, using my Nanocom Evo, which has the unlock for TD5 Disco. His car is a Defender, TD5. His issue is with TC and ABS lights lit. He had got a previous diagnosis that he had a faulty ABS sensor, which he had replaced. All he wanted was to clear the fault, so, why not, give it a go. Well, the Nanocom, in it's D2 mode, found the fault, and said it had cleared it. The lights went out, but very quickly came back on upon driving.

What I'm asking is, were we being fooled by the supposed clearing of the fault, or was the fault being cleared and then reappearing because the issue still exists? My instinct is that the fault still exists, but I don't know the Nanocom that well.

I actually have the Defender code, but stupidly didn't load it properly.

[bsperka]

If it went out, you cleared it. I'd suggest that the fault itself has come back. What was the fault code reading?

[Tombie]

Fault still exists... and is likely the 2 amigos [emoji41]

[Tins]

If it went out, you cleared it. I'd suggest that the fault itself has come back. What was the fault code reading?

From memory, Fault left hand rear sensor.

My feeling as well.

[Tins]

Fault still exists... and is likely the 2 amigos [emoji41]

Thanks, Tombie. That is my feeling, but it's hard to be sure when the Nanocom is not the right one for the car.

[Tins]

Fault still exists... and is likely the 2 amigos [emoji41]

Err, only TWO amigos??? I'm not often on the Defender forums... Does that mean the same as the 3 does on the Disco?

[Tombie]

Err, only TWO amigos??? I'm not often on the Defender forums... Does that mean the same as the 3 does on the Disco?

They don't have the 3rd light [emoji41]

[Tins]

They don't have the 3rd light [emoji41]


Err, Ok. That bit I got. It's more the fix I was curious about...

[sierrafery]

The ABS management is the same for Td5 D2 and Defender, both are on WABCO D just that the D2's SLABS has additional SLS side added which is in the same box but independant... the fact that the warnings went out it means that the fault was initially cleared but since they came back after a short drive it's most likely sensor related. If the code is for the same sensor which was replaced the problem is not with the sensor but with it's ''relation'' with the reluctor ring cos if it was the sensor it would have not passed the stationary voltage test and the amigos should have came back witout driving. It seems the same like the D2's hub failure but i dont know how this is on Defender

[Tins]

The ABS management is the same for Td5 D2 and Defender, both are on WABCO D just that the D2's SLABS has additional SLS side added which is in the same box but independant... the fact that the warnings went out it means that the fault was initially cleared but since they came back after a short drive it's most likely sensor related. If the code is for the same sensor which was replaced the problem is not with the sensor but with it's ''relation'' with the reluctor ring cos if it was the sensor it would have not passed the stationary voltage test and the amigos should have came back witout driving. It seems the same like the D2's hub failure but i dont know how this is on Defender

I have to confess my ignorance here. I gain a lot from reading the threads, but have never ventured into the physical side of this on LRs. The fault apparently is always the same LHR. The owner has replaced the sensor with an aftermarket jobbie, and simply wanted the fault cleared, which is where I came in.

Assuming that the new sensor isn't at fault, and it was installed correctly, what other "relationship" with the ring could be compromised, given this is on the rear? A hub failure would surely be showing other symptoms?

The car isn't mine, and it's not here, but I ask to learn, and to maybe help him out.

[sierrafery]

If the Defender's wheel hub is the same like the D2's it might not show any symptom from outside cos it can be an internal wear and the ring to have a certain play then the sensor's signal becomes unstabile but if there is movement in the wheel grabbed at 3 - 9 and/or 6 - 12 o'clock corroborated with wheel speed sensor fault code then the hub should be replaced. nanocom makes a stationary voltage test on the sensors to check the circuit and if it gets back voltages between 2 - 2.4 V it means that the circuits and the sensors are ok so if the fault comes while driving it's most probably what was explained above

[Tins]

If the Defender's wheel hub is the same like the D2's it might not show any symptom from outside cos it can be an internal wear and the ring to have a certain play then the sensor's signal becomes unstabile but if there is movement in the wheel grabbed at 3 - 9 and/or 6 - 12 o'clock corroborated with wheel speed sensor fault code then the hub should be replaced

Makes sens, SF. I'll pass it on.

[sierrafery]

I was adding to my message something i forgot to mention while you replied, see the last part too.