Vauxhall Vivaro non start fault 0 miles on dash, no comms with reductant control module SCR P1022

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Investigating & Fixing a Non start fault on a 2018 Vauxhall / Opel Vivaro same as the Renault trafic. 0 miles left on dash board , add blue fault, no communication with SCR / add blue / reductant control module. P1022 lost communication with reductant control module stored in engine ecu. Fault relates to a corroded / broken wire.
Diagnostic machine used in this video:
Topdon Phoenix lite 2 - diydaly.co.uk/...
Tools used :
Milwaukee 18v 1/2" Impact driver - ebay.us/CFoc38
Leatherman wingman multitool - amzn.to/41dtKwm
Multimeter - ebay.us/WlGnoP
Multimeter (Fluke115) - ebay.us/DZIyJT
Budget multimeter (Draper) - ebay.us/dxO7p8
Automatic wire strippers - diydaly.co.uk/...
Mini blow torch - ebay.us/WlKTvI
Solder connectors - ebay.us/oEuDWh
Glue lined heat shrink - ebay.us/YVM55b
Insulation tape - ebay.us/i2BYkV
Check Euro car parts - tidd.ly/3lIO7xA (use discount codes on site)
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Опубликовано:

3 окт 2024

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Комментарии : 19

@TheDervMan 11 месяцев назад

Lovely bit of troubleshooting there. Nice to see TopDon helping you out 😎🔧

@diydaly 11 месяцев назад

still going strong!💪

@trevormansfield6495 11 месяцев назад

Good diag. I bet that took a while!!!

@diydaly 11 месяцев назад

Thanks , haha yeah took bit of head scratching!😂

@mohammednazar5255 10 месяцев назад

Weldone mate.

@diydaly 10 месяцев назад

Thanks

@snapshot8006 11 месяцев назад

After numerous times I had a no start on a fiat 500..going through fuses, relays, ignition switch, replacing the multi 500 filter, finally the starter..no start..no codes..so as I reluctantly decided to remove the new starter, I discovered the problem I missed ☆ which was rust and corrosion on the ring contacts hidden under the main terminal to the starter which I had cleaned, but missed the ring contacts buried under the starter lead. ..so the old starter was probably still good..but left the new one in and now it starts very fast and strong!! This was a tricky problem lol

@diydaly 11 месяцев назад

👍👍 yeah I bet you was relieved when you found it!

@basilet8397 5 месяцев назад

Can you please tell me how level is calculated for adblue? Thanks

@diydaly 5 месяцев назад

Level sensor in the tank

@basilet8397 5 месяцев назад

@@diydaly Thank you. I took down the pump/electronic unit yesterday. I cleaned the filter and put à plastic sprocket to avoid the ring on the level gauge to stick in low position. Put everything back, did a refill and checked the odometer: the problem persists, still have the xxx km message as if I had a low level of Adblue. I guess it's a non-communication between ecu and adblue unit issue.

@diydaly 5 месяцев назад

@@basilet8397 that message will come up for various faults mate , you must have some faults stored in the add blue ecu

@basilet8397 5 месяцев назад

@@diydaly Unfortunately, no fault stored in the ecu. I even went further and took real time information on the unit, temperature, pressure, ad blue quality... the measure that attired attention was the level that pointed 115 mm as the fuel tank is filled.

@diydaly 5 месяцев назад

@@basilet8397 hmm seems an odd one! Hopefully you find something!