Ron -
If you suspect the trafficator / control head, then you should put
your electical testor on the wires coming out the steering box and
check. If you have a problem there just chase it back to the control
head unit. Usually problems here are very simple to fix. John Sims
site has a good article on the control head and all the pieces.
Alan
On 3/29/10, Ron Ray <ronald-ray@sbcglobal.net> wrote:
> 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.
>
> Background:
> 1. The flasher unit has been determined to be defective so we have
> bypassed it by disconnecting the wire s and connecting the wire for the "B"
> terminal to the wire for the "L" terminal.
> 2. The turn signal relay has been replaced with a new electronic unit
> which was bench tested with 12 volts and determined to be functional.
> 3. All wiring, except the wires that connect inside the turn signal
> switch at the steering wheel have been checked several times for correct
> installation and connections.
> 4. The turn signal switch was rebuilt by someone we understand to be an
> expert. However, moving the turn signal switch to the right turns on the
> left front and rear turn signal lights, and turning switch to the left
> results in no lights tuning on.
> 5. The horn button works.
> 6. The brake lights work
> 7. The parking lights work front and back.
> 8. Rear reflectors have been converted to brake/signal lights.
> When going through the test outlined in the Workshop Manual under Section
> N.14, the following results occur.
> 1. 12 volts are present at terminal 1of the turn signal relay
> 2. Linking terminal 1 to terminal 2 turns on the left front turn signal
> light.
> 3. Linking terminal 1 to terminal 6 turns on the right front turn signal
> light
> 4. Linking terminal 1 to terminal 3 causes both taillights to illuminate
> under the flasher filament.
> 5. Linking terminal 1 to terminal 7 causes both taillights to illuminate
> under the flasher filament.
> We are completely confused as to why all rear turn signal/brake lights come
> on at the same time
>
> We do suspect that the wires in the turn signal switch are part of the
> problem as at least two wires are connected to the wrong terminals.
> We wonder if a broken or grounded out wire inside the stator tube could
> cause all rear lights to come on at the same time during the testing of the
> relay
>
> Thanks in advance for any insights you can provide.
>
> Ron
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--
Sent from my mobile device
Alan
'52 A90
'53 BN1
'59 Jag Mk IX
'64 BJ8
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