Normally if the bulbs don't light the flasher unit won't click, and one
of the common failure modes is the other way round i.e. they light but
don't flash and there is no clicking. One click or clicking on and off
as if the flashers should be working?
Do you have a non-standard flasher unit? I'm assuming so if you have
LED flasher 'bulbs' at the rear as the standard and even the modern
3-wire units won't work with those without additional resistors. Â Are
the dash tell-tales lighting or flashing? If you have a flasher unit
capable of working with LED bulbs there are many types of those and they
can cause all sorts of problems.
Your best bet is to bridge the green and light-green/brown wires at the
flasher unit and see if the corners light then. They won't flash but it
will at least let you check the circuits out to the corners of the car
and fix any faults with those.
PaulH.
On 17/04/2022 03:23, Michael MacLean wrote:
> Last week the turn signals in the 69 MGB GT just stopped working. I
> have replaced the flasher unit. I know it is getting power because it
> audibly makes a clicking sound when I flip the turn signal stalk. I
> checked the fuses, both are good. I checked the incandescent bulbs in
> the front and they were OK. The rear turn signals are LED and quite
> new. I'm kind of at a loss here. They were working when I stopped
> the car at the dog park and the just weren't working when I started
> the car back up. Anything else I can check here?
> Mike MacLean
>
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