dinz_dinz
Member
Yes I cleared the faults and drove about 60-80miles this week. It was a city drive. No change. I think it’s something wrong with wires/connections.
ABS/Traction control lights still on
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dinz_dinz
Member
Today the LIN wire was fixed.
Then I managed to unplug the 38pin connector without dismantling anything and sprayed some contact cleaner inside. When I put it back on and switched on the ignition the ABS lights came back. Terminal 15 was off again. Then I measured voltage on pin 6 and it was present. After unplugging and plugging in the connector for a few times terminal 15 was still off. All the previous faults U0416 and U1122 are gone though. I started to think that something is wrong either with the 38pin connector or the ABS unit. I got back home and searched for a used connector on ebay. When I compared photos of my connector and a used one that I’ve found I’ve noticed that one part of my current connector appears to have been broken. It was defo before my intervention.
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dinz_dinz
Member
Does anyone know what does this little red thing do? I’m wondering could it be that this thing helps keep the connection between the ABS unit and 38pin tight. Probably not… I’m now thinking of ordering a used connector; unpinning all the female terminals; checking them for corrosion and replacing the connector. If it doesn’t work then I’ll get another ABS unit. Is there anything else I should try before that?
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dinz_dinz
Member
Hi guys, a quick update. I’ve fixed Terminal 15 — it’s now constantly on. The issue might have been due to a poor crimp on my part. There were some CAN bus faults present, so I tested CAN bus voltage and resistance — everything looked fine.
I went to a specialist with ODIS online and asked him to try flashing the ABS unit as chatGPT suggested, but he didn’t want to risk it due to the CAN bus issues. He referred me to the main dealer.
At the main dealer, they followed the test plan, confirmed that the CAN bus is working correctly, and told me the next step would be to replace the ABS unit.
I took the van back and swapped the ESC unit with my old one (just three screws). Now things are looking more promising — the ESC light is still on, but it’s showing a different fault. VCDS shows the CAN bus is functioning. And Stop-start is working not hill assist though. It seems like there’s a software mismatch beteween ESC and ECU.
I’ve booked it in for a software update via ODIS online on May 20. Will post another update soon.
I went to a specialist with ODIS online and asked him to try flashing the ABS unit as chatGPT suggested, but he didn’t want to risk it due to the CAN bus issues. He referred me to the main dealer.
At the main dealer, they followed the test plan, confirmed that the CAN bus is working correctly, and told me the next step would be to replace the ABS unit.
I took the van back and swapped the ESC unit with my old one (just three screws). Now things are looking more promising — the ESC light is still on, but it’s showing a different fault. VCDS shows the CAN bus is functioning. And Stop-start is working not hill assist though. It seems like there’s a software mismatch beteween ESC and ECU.
I’ve booked it in for a software update via ODIS online on May 20. Will post another update soon.
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dinz_dinz
Member
Hi guys, just wanted to update you on my ABS/ESC issue.
At the beginning of June, I visited a few VAG specialists in the Manchester area and had a chance to speak to two mechanics at different garages. One of them took my van in the same day to try flashing the software, but it didn’t work out. They told me a brand new ESC module would be required.
Eventually, I went to the second place. After speaking with the mechanic, I left the van with them for diagnostics. My MOT was due to expire in a couple of days, so they were pretty much my last hope.
Long story short — they explained that even a small difference in the numbers on the ESC module makes it incompatible with ABS pump itself on certain T6s. They helped me source a used ABS unit (to save money) and sent me a link to one from Portugal for £350, as they don’t deal with used parts themselves.
A few days later, after I brought the part to them, they fitted it, calibrated everything, and it solved the problem.
So — £350 for the part + £700 for labour = not bad compared to a brand new ABS module alone at £2200.
Honestly, I’d already given up on the van and was ready to stick it on eBay auction, but they managed to sort it out.
I have to say, I’m a bit disappointed with the whole experience of dealing with a modern diesel vehicle. I’ve started looking into electric vans — I know they’re complex on the software/electrical side, but at least they don’t have gearboxes, injectors, timing belts, clutch, engine oil, DPF, EGR, AdBlue, and all the rest…
THE PLACE IS CALLED VAG TECHNIK LOCATED IN MANCHESTER (Eccles).
At the beginning of June, I visited a few VAG specialists in the Manchester area and had a chance to speak to two mechanics at different garages. One of them took my van in the same day to try flashing the software, but it didn’t work out. They told me a brand new ESC module would be required.
Eventually, I went to the second place. After speaking with the mechanic, I left the van with them for diagnostics. My MOT was due to expire in a couple of days, so they were pretty much my last hope.
Long story short — they explained that even a small difference in the numbers on the ESC module makes it incompatible with ABS pump itself on certain T6s. They helped me source a used ABS unit (to save money) and sent me a link to one from Portugal for £350, as they don’t deal with used parts themselves.
A few days later, after I brought the part to them, they fitted it, calibrated everything, and it solved the problem.
So — £350 for the part + £700 for labour = not bad compared to a brand new ABS module alone at £2200.
Honestly, I’d already given up on the van and was ready to stick it on eBay auction, but they managed to sort it out.
I have to say, I’m a bit disappointed with the whole experience of dealing with a modern diesel vehicle. I’ve started looking into electric vans — I know they’re complex on the software/electrical side, but at least they don’t have gearboxes, injectors, timing belts, clutch, engine oil, DPF, EGR, AdBlue, and all the rest…
THE PLACE IS CALLED VAG TECHNIK LOCATED IN MANCHESTER (Eccles).
