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I'm removing a double passenger seat from my Vivaro conversion to replace it with a single seat. The replacement seat won't have a seat belt pretensioner. The seat belt pretensioner wiring under the existing seat comprises of two groups of three cables, with each group of three connected to a single blue cable leading to the pretensioners. If I disconnect the connection a warning light on the dashboard illuminates. I've read on the internet two broadly similar solutions - "simulate the pretensioner by replacing it with a 2.3 ohm resistance across the cable" or elsewhere to use a 3.3ohm resistor instead. Can anyone advise me, in either case, if that means connect the resistor to the cable (in my case each of the groups of three cables emerging from the wiring loom) and then to earth? I'll put a line fuse into the connection anyway. but I don't want to cause an expensive problem as a result of a lack of knowledge about what I'm doing.
Since posting the above I've been and looked at the wiring again and (blame aging vision, sun in my eyes or general weariness) there are actually two pairs of wires from the wiring loom not two pairs of three. These seem to be two to each pretensioner, with each pair joined via a connecting block to a single blue wire to each pretensioner. I've tried connecting each of the pairs of wires together through a resistor rather than to the blue wire that goes onwards to the pretensioner but the airbag warning light still stays on. Aargh! I'm running out of ideas. At this rate I'm going to have to go and find a tame auto electrician and as a Yorkshireman I hate having to pay for things.
Since posting the above I've been and looked at the wiring again and (blame aging vision, sun in my eyes or general weariness) there are actually two pairs of wires from the wiring loom not two pairs of three. These seem to be two to each pretensioner, with each pair joined via a connecting block to a single blue wire to each pretensioner. I've tried connecting each of the pairs of wires together through a resistor rather than to the blue wire that goes onwards to the pretensioner but the airbag warning light still stays on. Aargh! I'm running out of ideas. At this rate I'm going to have to go and find a tame auto electrician and as a Yorkshireman I hate having to pay for things.
another point if you have had wiring disconnected and tried various ways, that will have activated air bag light, which even if you have wiring correct now will need resetting
I've not removed the old seat yet. I disconnected the pretensioners and tried connecting the wiring via resistors as above. As that hasn't worked I've simply reconnected to reinstate things and the airbag light goes out again as it should, so I don't need to get it reset. I can't just keep the pretensioner connected and cable tie it out of the way, as gnscloz suggests above, as there will be nothing to connect to. Once the old seat is out of the way what I'll have is the redundant connection to the pretensioners, which I need to fool into registering that there's still a pretensioner connected to it.
I'm removing a double passenger seat from my Vivaro conversion to replace it with a single seat. The replacement seat won't have a seat belt pretensioner. The seat belt pretensioner wiring under the existing seat comprises of two groups of three cables, with each group of three connected to a single blue cable leading to the pretensioners. If I disconnect the connection a warning light on the dashboard illuminates. I've read on the internet two broadly similar solutions - "simulate the pretensioner by replacing it with a 2.3 ohm resistance across the cable" or elsewhere to use a 3.3ohm resistor instead. Can anyone advise me, in either case, if that means connect the resistor to the cable (in my case each of the groups of three cables emerging from the wiring loom) and then to earth? I'll put a line fuse into the connection anyway. but I don't want to cause an expensive problem as a result of a lack of knowledge about what I'm doing.
Does modifying the vehicle like this affect "Construction and Use" Regulations.ie .is it legal ?
Tony A.
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Italy
