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Citroen relay - French wiring problem.
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<blockquote data-quote="Geoff1946" data-source="post: 498734" data-attributes="member: 28452"><p>If you have the wiring diagram and a multimeter you can do point to point continuity tests but it isn't easy. Even recognising the colour codes on the core is a PIA. You will need an assistant inside the cab whilst you are under the bonnet.</p><p></p><p>I would first look very carefully at the evidence you already have.</p><p></p><p>If disturbing the harness previously brought the fault on or off you have a very limited area to work in. Unwrap the tape from the harness if you can. You may well find hidden joints which have corroded. </p><p></p><p>Look where the wires go into the fuse box for corrosion, especially within push on terminals, which can hold onto the insulation whilst the wire core has corroded away at the very end.</p><p></p><p>I don't know about Citroen but I had a bad wiring experience with a VW Passat. There was an electronics box under the passenger seat. The box was high and dry but water had got into the harness to it. When stripped back of the outer wrap I found corroded joints which appeared to be just twisted together and covered with a cloth tape just inviting water ingress. A few bits of wire, some soldering and pvc tape saw all well again.</p></blockquote><p></p>
[QUOTE="Geoff1946, post: 498734, member: 28452"] If you have the wiring diagram and a multimeter you can do point to point continuity tests but it isn't easy. Even recognising the colour codes on the core is a PIA. You will need an assistant inside the cab whilst you are under the bonnet. I would first look very carefully at the evidence you already have. If disturbing the harness previously brought the fault on or off you have a very limited area to work in. Unwrap the tape from the harness if you can. You may well find hidden joints which have corroded. Look where the wires go into the fuse box for corrosion, especially within push on terminals, which can hold onto the insulation whilst the wire core has corroded away at the very end. I don't know about Citroen but I had a bad wiring experience with a VW Passat. There was an electronics box under the passenger seat. The box was high and dry but water had got into the harness to it. When stripped back of the outer wrap I found corroded joints which appeared to be just twisted together and covered with a cloth tape just inviting water ingress. A few bits of wire, some soldering and pvc tape saw all well again. [/QUOTE]
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Citroen relay - French wiring problem.
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