[DeTomaso] Hazard Warning Switch Issues - Part 2

[David & Marilyn Bell]

A blatant sales pitch:  a dual diode pigtail for the turn indicator light,
electronic flasher and replacement LED bulbs for all the exterior lights
(except the headlight and backup bulbs) are available as a plug and play kit
from Space City Panteras.  The brake light LED bulbs in particular are
awesome.  No heat, no current drain and much improved visibility.

Contact John Taphorn (jtaphorn at kingwoodcable.com) for details.

Muscat Dave

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]On
Behalf Of SOBill at aol.com
Sent: Saturday, November 17, 2007 6:16 PM
To: cdifani at pacbell.net
Cc: detomaso at realbig.com
Subject: Re: [DeTomaso] Hazard Warning Switch Issues - Part 2

Chris,

In the OEM system, the turn indicator light  in the tach is wired in a
fairly
subtle way. The indicator lamp filament is  wired BETWEEN the left and right
turn signal lamp power feeds. Whichever  direction you are turning applies
12V
to one side of the indicator lamp and the  filaments of the turn signal
lamps
for the direction you are not turning provide  the ground path for the
indicator lamp. This works because the indictor lamp  current is so low
relative to
the signal lamp currents that the signal  lamps which provide the ground
path
do not glow.

IF you have converted to an LED turn signal indicator lamp,  the indicator
will not work correctly unless the wiring in this area is  modified by
adding
two diodes to feed the positive input to the LED  and adding a direct ground
connection to the negative of the  LED.

A diagram of the required circuit modifications is posted at
>>>>>www.members.aol.com/sobill/LED_Turn_Signal_Lamp_Indicator_Fix.pdf.

BTW, this circuit mod is needed if you use the OEM incandescent  indicator
lamp with LED signal lamps. The LED signal lamps will ALL flash for  turns
in
either direction if the OEM indicator lamp is used without this
modification.

If you use LED's for the turn signal lamps, you will also need to  replace
the OEM flasher with an electronic flasher which is not dependent on the
turn
signal lamp currents to make it cycle.

Simple, ain't it?

Have fun,

SOBill  Taylor
sobill at aol.com


In a message dated 11/17/2007 3:57:10 P.M. Pacific Daylight Time,
cdifani at pacbell.net writes:

Guys:

Since I wrote my previous email a few moments ago, I found  the schematic
for
the switch, and "just for fun" checked the wiring that was  plugged in....
And I found that the "Light Blue with black stripe" wire was  plugged on to
the
"Light blue" (R) connector, and visa versa.

This may  be a significant part of my problem.... I hope.

Chris

Chris  Difani
'73 L #5829 "LITNNG"
The Electric Pantera
Sacramento,  CA
Email: cdifani at pacbell.net

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