[TR] TR3 Turn Signal woes

wbeech wbeech at flash.net
Mon Jan 8 21:21:32 MST 2018

I have had issues like that before on my car and others.  Assuming a good
ground I would pull everything loose near the fixtures, including the
running and brake lights, and connect up one at a time and test each time I
made a connections.  As soon as something goes wrong, chase that wire back
through all the points to confirm that it is correct.  Don't assume that he
flasher and the connections inside the steering hub are good.


No easy answer, may 5 minutes, maybe 5 hours.


Good luck,




From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of CFM-TR
Sent: Monday, January 08, 2018 9:11 PM
To: 'TR Triumphs' <triumphs at autox.team.net>
Subject: [TR] TR3 Turn Signal woes


See attached diagram.


When I operate left turn on control head, front and rear operate as they

When I operate right turn on control, right front works but both lamps flash
in the rear.


Any ideas where the problem is?  I am at a complete loss.  I would think
that if I have right/left crossover, both lamps in the rear would flash
regardless of which indicator is used.  I checked connections at the rear
lamps and only a single line (correct one GR or GW) is connected.  Only line
going to right front is GW.  I have tried different connections at left
front since the GN and GR look so similar but nothing works then.  I checked
all four corners and live/ground wires are going to the correct terminals.


Any ideas appreciated.  Thanks


Carl Musson

1960 Triumph TR3


Tampa, FL



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