Omega Owners Forum
Omega Help Area => Omega Electrical and Audio Help => Topic started by: countrywoman on 08 June 2025, 16:16:01
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Okay so got my Snap On code reader working, it says fault code 35 pressure release relay fault. (same as Ds diagnostic tool) so does this mean it needs a rebuild? I take its not referring to the 2 50amp electrical relays on the top?
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That sounds like a red herring :-\
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So do I have to send it off to be checked out, TBH its been sat over 20 years.
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So do I have to send it off to be checked out, TBH its been sat over 20 years.
Wouldn't be the worst idea unless the wiring diagrams clearly indicate what/where the pressure release relay is for testing purposes.
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Just found an online Vauxhall repair manual, PIA to find what I wanted but it said code 35 due to pump not making pressure after 3 secs or pump not turning off. Looks like it will defo have to be serviced.
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is the unit fully installed and bled ?
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is the unit fully installed and bled ?
Oh! I wonder if it needs connecting to a Tech 2 type thing to cycle the pump to get the air out to allow it to build pressure:/
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is the unit fully installed and bled ?
Oh! I wonder if it needs connecting to a Tech 2 type thing to cycle the pump to get the air out to allow it to build pressure:/
Surely a snap off scanner should manage that :-\
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Thats my task for Fri, well check the pump runs first!
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is the unit fully installed and bled ?
Oh! I wonder if it needs connecting to a Tech 2 type thing to cycle the pump to get the air out to allow it to build pressure:/
Surely a snap off scanner should manage that :-\
I don't use anything more nuanced than a hammer so no experience, anything like that I visit my guru :D
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Well neither my scanner or Ds modern one will support activation of pump, tried to get the relays out to bridge pump feed but only the top came off one (not the one I wanted) and the other refuses to budge. D will see if the folks he sends ABS units to can fix this one on Monday.
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Its working, yup works better with the earth lead on the motor!!!! I know why I missed it as unit fitted before engine and it was hidden, only saw it today as doing some checking /snagging jobs and was lay underneath.
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Been there, or similar at least. You dont know whether to laugh ,cry ,or do a silly dance. ;D
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LOL, nice easy fix in the end ;D
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Yes but now it says brake switch fault but that works , checked the wiring and all looks okay. Brakes do need bleeding as a bit long travel when servo working. Only 2 wires on switch by the way.
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Early petrol V6 have 2 wire brake switch if non-cruise, or 4 wire if fitted with cruise
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Yes thats what I thought, I checked wiring dia and it just feeds ABS from same wire as feed to brake lights. I checked for continuity and that was fine. More head scratching then.
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It was the under dash tray pushing the switch up, bit more panel cutting then!!!