The horn is grounded through the stator tube/steering wheel/column.
There is a flat copper ring between the stator tube and the control head.
The turn signal is grounded at the light bulbs. Power goes to the
control head on the green wire and returns on either the green/yellow or
green/blue depending on the switch position.
Green/Yellow Right turn signal
Green Turn signal power
Green/Blue Left turn signal
Brown/Black Horn
Ron Ray wrote:
> Thanks Kees.
>
> How does the turn signal switch achieve the ground that is illustrated in
> the wiring diagram. None of the 4 wires exiting the end of the steering
> column are ground wires.
> The reason I ask is because the car in question has an aftermarket steering
> wheel.
>
> Ron
>
>
>
> -----Original Message-----
> From: Oudesluys [mailto:coudesluijs@chello.nl]
> Sent: Sunday, March 28, 2010 4:49 PM
> To: Ron Ray
> Cc: 'healeys'
> Subject: Re: [Healeys] Turn Signals
>
> First check and clean all earth connections, souns a bit like an
> earthing problem somewhere along the line.
> Check the connections on your switch using a bulb/battery or ohm/volt
> meter. Do not trust the "experts" without question.
> Check the wattage of the bulbs used. If these are not correct ,systems
> may not work properly
> Kees Oudesluijs
> NL
>
>
> Ron Ray schreef:
>> Folks,
>>
>> We are having trouble determining the cause of some turn signal issues on
> a
>> friend's 1960 BN7. The car is near the end of a frame up restoration so
> all
>> components are new or rebuilt.
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