Tomtr250 Posted April 29, 2017 Report Share Posted April 29, 2017 Hi Can anyone guide me please? I'm nearing the end of restoring a 4a for a friend, I can't get the indicators to blink!! The car has an auto sparks loom and a new flasher unit (digital), when you operate the indicators, they light up but don't flash, I know the flasher unit is good as I've had it working in another circuit Any ideas please? Thanks Tom Quote Link to post Share on other sites
Lebro Posted April 29, 2017 Report Share Posted April 29, 2017 Are you sure you have wired the flasher relay up correctly ? Bob. Quote Link to post Share on other sites
barkerwilliams Posted April 29, 2017 Report Share Posted April 29, 2017 Tom, If the digital flasher is a three pin have you provided an earth for the third pin? Originally two pin no earth needed. Alan Quote Link to post Share on other sites
Lebro Posted April 29, 2017 Report Share Posted April 29, 2017 +1 Quote Link to post Share on other sites
Tomtr250 Posted April 29, 2017 Author Report Share Posted April 29, 2017 Hi Gents The new loom has a 3 terminal plug with three wires going in Green - live when ignition on and indicator on Light green and purple Green and brown Which one would be earth? Tom Quote Link to post Share on other sites
RobH Posted April 29, 2017 Report Share Posted April 29, 2017 (edited) The green/purple wire goes to the dash tell-tale lamp and then to earth. Which flasher unit did you get? The three pins may be numbered 49 (green wire), 49a (green/brown) and 31 which usually needs a direct earth connection to make it work (you could easily check that with a jumper wire). If it works when earthed you have the wrong type of flasher unit as the 4A needs one with a pin to drive the dash lamp. Confusingly, those are also available in 3-pin form needing no extra earth, or in a 4-pin format Edited April 29, 2017 by RobH Quote Link to post Share on other sites
Tomtr250 Posted April 29, 2017 Author Report Share Posted April 29, 2017 Hi Rob The unit is Durite 0-606-00 The markings are C R and + If R is centre bottom C is left and + is right Tom Quote Link to post Share on other sites
RobH Posted April 29, 2017 Report Share Posted April 29, 2017 (edited) OK Tom that one should work without an earth. The C terminal is the one for green/purple to the dash lamp. + of course is the green wire to the supply (the car IS negative earth ? ) and R to green/brown. Its an electronic unit but the data doesn't say its suitable for LEDs - does the car have those or is it ordinary bulbs? Edited April 29, 2017 by RobH Quote Link to post Share on other sites
Tomtr250 Posted April 29, 2017 Author Report Share Posted April 29, 2017 Hi Rob It's ordinary bulbs, although all of the indicators on the body light, the warning light doesn't, the car is negative earth Tom Quote Link to post Share on other sites
RobH Posted April 29, 2017 Report Share Posted April 29, 2017 (edited) That is more puzzling then. Its the right type of relay so on the face of it it should work. Is the relay fitted in a socket in the loom or are the connections separate spade connections? I believe the location of the pins may be different from the standard unit so that if in a socket it could end up wired incorrectly. Edited April 29, 2017 by RobH Quote Link to post Share on other sites
Tomtr250 Posted April 30, 2017 Author Report Share Posted April 30, 2017 Hi Rob It's a 3 way female socket in the loom Tom Quote Link to post Share on other sites
RobH Posted April 30, 2017 Report Share Posted April 30, 2017 OK in that case you need to check that the wires go to the right places on the relay. Green to +, Green/Brown to R, Green/Purple to C. If they don't it may be possible to move the connectors in the socket if that has push-in spade terminals. Usually you can persuade then to come out of the socket by putting a thin blade down one side to ease back the retaining pip. Quote Link to post Share on other sites
barkerwilliams Posted April 30, 2017 Report Share Posted April 30, 2017 Tom, Re-reading your first post is it a "new" loom? Have the flashers ever worked on that loom? Alan Quote Link to post Share on other sites
Tomtr250 Posted April 30, 2017 Author Report Share Posted April 30, 2017 Hi Alan The loom is brand new, no power through it before Tom Quote Link to post Share on other sites
ChrisR-4A Posted April 30, 2017 Report Share Posted April 30, 2017 I fitted a 0-606-00 to my 4A in 2012 and it was a direct replacement, still working fine. I would try an original can type to check the loom out. Chris Quote Link to post Share on other sites
RobH Posted April 30, 2017 Report Share Posted April 30, 2017 You posted about that in 2012 Chris and what you said then was: "Note to anyone else fitting the Durite unit, do check the enclosed wiring diagram, the terminals may have the same pattern as the tin can units but the wiring is not the same, on the Durite unit - the lower LH & RH wires are the opposite way round!" (the thread is here: http://www.tr-register.co.uk/forums/index.php?/topic/35504-new-flasher-unit-does-not-work/page-2) Quote Link to post Share on other sites
ChrisR-4A Posted May 1, 2017 Report Share Posted May 1, 2017 Thanks for pointing that out Rob, what short memories some of us have. Should have used the search tool. If the new loom has a socket then wires will need changing for durite unit also fitting a standard can unit first will prove loom is ok. Quote Link to post Share on other sites
Tomtr250 Posted May 2, 2017 Author Report Share Posted May 2, 2017 Hi chaps Update! Many thanks for all of the advice especially Rob, having adjusted the wires to match Robs advice (and Chris's), I realised that there was no link between the flasher unit and the switch, checked the wiring for continuity that was ok then realised that the new indicator switch was wired up wrong, the colours were not where they should be!! Anyway all working now Thanks again Tom Quote Link to post Share on other sites
RobH Posted May 3, 2017 Report Share Posted May 3, 2017 Pleased to help Tom. Glad you got it going. Quote Link to post Share on other sites
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