• Hi Guest! Being a Paying Supporter is NOT a requirement to participate at BCF. However, subscribing will help ensure we can continue to serve the LBC community for years to come. If you enjoy BCF and find our forum a useful resource...Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)
Tips
Tips

TR6 Fuse box wiring mystery

mives429

Freshman Member
Country flag
Offline
Folks I bought a TR6. Apparently the previous owner had a short so unplugged the wires on the 3rd fuse. Looks like the back fast-on pair or wires. See pic. I ohmed out rhe pair to the battery so either there shorted or a switch is stuck on. Does anyone know what those pair of wore go to. My shop manual is not real clear. I see only two wires on the schematic
 

Attachments

  • 4DA58988-06EA-45A4-AD08-51EDD538E53B.jpeg
    4DA58988-06EA-45A4-AD08-51EDD538E53B.jpeg
    3.1 MB · Views: 22
  • 76D05FCF-DF81-4353-BC62-CB0E90A8AE77.jpeg
    76D05FCF-DF81-4353-BC62-CB0E90A8AE77.jpeg
    2.6 MB · Views: 24

JPSmit

Moderator
Staff member
Silver
Country flag
Online
moved to the Triumph Forum
 

poolboy

Yoda
Country flag
Offline
Much better schematic here than in the shop manual...and since there are differences it would be a good idea to state the year of your car.
 
OP
M

mives429

Freshman Member
Country flag
Offline
75 tr6. Yes they are light purple… the body, floor pan etc are in great shape… needed a tune up and is leaking oil…. Not worried about that because the body is such good shape. the radio has no power maybe thats a clue
 

Sarastro

Obi Wan
Gold
Country flag
Offline
Do download the wiring diagram from Advanced. It's the best available. Trying to follow the one in the manual is an exercise in frustration.

The purple circuit, you will see, powers a number of functions; the problem could be anywhere among them. It's also possible that the PO disconnected the part that powers the seat belt warning system, simply because it's annoying. It might be worth the investment of a fuse to hook it up again and see what happens. If no fuse blows, you're home free.

Assuming that the fuse blows: If I were doing this, I'd disconnect the two wires, then reconnect one wire at a time to see which circuit is blowing the fuse. Then, follow the wire enough to determine what it powers, and disconnect the various parts of that circuit and see what makes the short go away. At that point, you've located the problem, and you can just look at the offending component carefully to see exactly what the problem is. Likely to be something that just didn't have enough clearance between a terminal or wire and ground, and it's making light contact.

This is basic electrical troubleshooting. Just an application of logic.
 

Madflyer

Jedi Knight
Country flag
Offline
Simple check add a light bulb in line from wire to fuse if it is shorted the light will light. If the light does not light line to that system is good. This saves fuse or shorted wire say under dash.
 

Attachments

  • DSCF2548.JPG
    DSCF2548.JPG
    3.9 MB · Views: 16
OP
M

mives429

Freshman Member
Country flag
Offline
Yeah i need to chase the circuit. The schematic from advanced wire really will help. I am going to pick up some spare fuses. Will let you know how i make out.
 
OP
M

mives429

Freshman Member
Country flag
Offline
Finally got some spare fuses today… found the reason the wires were unplugged. It was in fact a faulty seatbelt switch or short. The buzzer keeps going in and off randomly. Should be an easy fix. Thanks for all the help! Now if it would just stop raining in New England i can go for a ride.
 
Similar threads
Thread starter Title Forum Replies Date
WidespreadPanic TR6 '74 TR6 Fuse Box [UPDATE] SOLVED! Triumph 27
Brosky TR6 Classic Technologies Fuse Panel for TR6 Triumph 19
roofman TR6 1972 Triumph TR6 fuse question Triumph 11
nichola TR6 Another TR6 back on the road Triumph 1
TR6Canuck TR6 Wire spoke rims to fit Michelin Red Line Tires on TR6 Triumph 12
E TR6 74 TR6 - “ A Post Seal” Triumph 0
J Wanted TR6 seat vinyl Triumph Classifieds 1
E TR6 Temp Gauge - 74 TR6 Triumph 11
K TR6 tr6 not starting Triumph 8
E TR6 74 TR6 Renegade Dash Wire Triumph 7
BwanaJoe TR6 TR6 radiators Triumph 4
E TR6 ‘74 TR6 Starter & Trans Cover Triumph 13
M TR6 Windshield Trim TR6 Triumph 14
J TR6 72 TR6 starter problem Triumph 10
nichola TR6 Procar Pro-90 Seats in the TR6 Triumph 0
E TR6 TR6 top dash trim paint Triumph 2
S TR6 Should I Buy This "73 Triumph TR6" Triumph 3
J TR6 1975 TR6 Alternator Advance/Retard spring(s) Triumph 1
F For Sale Wheel Trim Rings Triumph TR6, $95.00 Triumph Classifieds 0
P TR6 TR6 Frame Stiffener Triumph 4
Geo Hahn TR6 TR6 Oil Line Thread Size Triumph 1
C TR4/4A Advice for grafting TR6 frame front to TR4A frame rear Triumph 14
C TR6 Latest TR6 updates and pics Triumph 10
P TR6 TR6 Horn Relay Problems Triumph 8
tr6nitjulius General TR TR6 Triumph 0
Sherlock Triumph TR6 (rather modified) Spotted 2
D TRIUMPH TR6 BODY SHELL Triumph Classifieds 0
M For sale rear wings Tr6 Triumph Classifieds 3
tr6nitjulius TR6 Ongoing Love Affair with 1 TR6 Triumph 8
J TR6 73 TR6 Temp Gauge Wiring Question Triumph 6
M Have a pair of tr6 rear wings Triumph Classifieds 0
Ripper01 Sold- TR6 Differential drive Triumph Classifieds 1
Ripper01 For Sale- TR6 Wiring Harness Triumph Classifieds 0
B TR6 TR6 1976 Clutch Choice Question Triumph 3
Gliderman8 TR6 Spark plugs for TR6 Triumph 7
tr6nitjulius TR6 TR6 meeting my Demands & Giving Back more! Triumph 2
tr6nitjulius TR6 TR6 Triumph 0
M Wanted TR6 Rear Bumper impact Brackets Triumph Classifieds 0
C TR6 TR6 TURN SIGNAL PROBLEM Triumph 13
Kdub Wanted TR6 Mechanic Triumph Classifieds 2
R TR6 fan shroud replacement Triumph 5
B TR6 TR6 AC compressor bracket Triumph 15
E TR6 74 TR6 - Rear and windshield frame color Triumph 2
Ripper01 SOLD-TR6 Dual Port Exhaust Manifold Triumph Classifieds 6
Ripper01 For Sale TR6 '69-72 Intake Manifold Stanpart V3108 Triumph Classifieds 0
Ripper01 SOLD-TR6 Gas Tank Triumph Classifieds 3
Ripper01 For Sale Sold-TR6 Differential Triumph Classifieds 0
P TR6 What make and size tire was on the TR6 when it left the factory? Triumph 7
F TR6 TR6 Seats Triumph 4
tr6nitjulius TR6 TR6 made another list! Triumph 5

Similar threads

Top