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Title: Tachometer failed Post by: GREENYORKIE on 08 March, 2014, 10:43:01 PM Can anyone suggest a reason for the sudden failure of a revcounter on a 1.8? My reading of the electrical schematic shows the signal comes from the coil,so a spare fitted and no joy.Fitting a spare instrument panel had the same result.Any pointers?
Title: Re: Tachometer failed Post by: fay66 on 08 March, 2014, 11:09:36 PM Check out the instrument panel earth points as well as the main battery earth lead under the battery tray, Dedra's throw up all sorts of weird electrical faults if there's a bad earth, another thing they don't like is anything electrical being fitted that wasn't designed specifically for Dedra.
Brian 8227 8) Title: Re: Tachometer failed Post by: fay66 on 08 March, 2014, 11:11:19 PM Check out the instrument panel earth points as well as the main battery earth lead under the battery tray, the Dedra's throw up all sorts of weird electrical faults if there's a bad earth, another thing they don't like is anything electrical being fitted that wasn't designed specifically for Dedra. So I assume other models may also react in a similar manner. Brian 8227 8) Title: Re: Tachometer failed Post by: GREENYORKIE on 10 March, 2014, 09:29:02 PM Thanks for that Brian.What I have established is an a.c. voltage at the connector for the revcounter at the back of the instrument panel which changes as the revs change.All the other gauges and warning lights operate as normal which makes me suspect I don't have a general earthing problem but a specific earthing problem relative to the revcounter.My problem now is deciding where the earth for the revcounter is.Any advice?
David. Title: Re: Tachometer failed Post by: fay66 on 11 March, 2014, 12:48:59 PM Thanks for that Brian.What I have established is an a.c. voltage at the connector for the revcounter at the back of the instrument panel which changes as the revs change.All the other gauges and warning lights operate as normal which makes me suspect I don't have a general earthing problem but a specific earthing problem relative to the revcounter.My problem now is deciding where the earth for the revcounter is.Any advice? David. Sorry I can't check as I've just sold my Delta HF Turbo Manual! but it's not normally very far from the cluster possibly near the door pillar. Brian 8227 8) Title: Re: Tachometer failed Post by: lancialulu on 11 March, 2014, 01:11:33 PM Sorry I can't check as I've just sold my Delta HF Turbo Manual! Brian 8227 8) Blast was looking for one of those..... |