The first thing you want to do is download
(http://www.advanceautowire.com/tr2506.pdf) the free AAW schematics that Dan
Masters developed about 10 years ago with input from many list members. This
is a much more accurate schematic and is specific to model year. The other
thing that is a great help is Dan's Electrical Maintenance Handbook
available from Moss. Besides step by step trouble shooting it includes a
section on all of the symbols.
As I'm looking at the schematic the reverse light power is on the power side
of the seatbelt neutral switch so the switch doesn't impact its operation.
- rectangle box = bullet connector
- circle w/ X = 1 pin of a multi pin connector for the main to rear harness.
Located near the floor on driver's side
- circle that's solid = splice
Bob
Bob Danielson
http://tr6.danielsonfamily.org/
1975 TR6 modified with:
-Throttle Body Injection
-Toyota 5 Speed
-Nissan Differential
-AAW Wire Harness
-CVJs... and more
-----Original Message-----
From: pdqtr6@comcast.net
Sent: Saturday, July 13, 2013 4:53 PM
To: NET Member Mailing ; Triumphs
Subject: [TR] Back-up Light Circuit on a 72 TR6
Could someone talk me through the back-up light circuit on a 72 TR6? I can't
get the car inspected unless all the lights work, and the Summer's slipping
away faster than I can imagine!
Here's where I am with this project:
I have taken the transmission cover out of the car and have determined that
with the key in the "run" position I am not getting power to the switch on
the side of the top cover of the transmission. The connections between the
switch and the rest of the circuit (where they connect to allow removal of
the transmission tunnel) are also "dead"
I have looked at the diagram on page 488 of the Bentley's manual, but am
confused by some of the symbols that I find in the circuit (found at the
bottom of the diagram on the right side.) It seems that before the power-in
wire connects to the seatbelt warning, gearbox switch (#66 - and what is
that and where in the car is it?) there is a resistor in the wire (indicated
by a rectangle in the line). From there, the line goes to the reverse lamp
switch (#34) and from there to another resistor, then to a light (the circle
with an "X") in it) and finally to the 2 lamps in the rear lamp housing
(#35). Do I understand the symbols correctly? Is a rectangle a resistor? Is
a circle with an "X" really a bulb? If so, where are they physically in the
car? And where should I look to find the break in continuity before the
switch?
I'm usually pretty good at figuring electrical problems out, but this one
has me stumped. I know that there are some listers who live for sorting out
problems-Lucas, so I'm throwing myself at your feet - HELP!
Tom Walling
** triumphs@autox.team.net **
Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/triumphs/75tr6@tr6.danielsonfamily.org
** triumphs@autox.team.net **
Archive: http://www.team.net/archive
|