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Topic: Yes, I have another one! (Read 1152 times) previous topic - next topic

Yes, I have another one!

Ok, sorry for all the posts lately!  LOL.

I've got a very strange thing happening here.  I was working on splicing in gauges for the SN swap, lighting in particular.  There is a lt blu/red wire at the light switch which runs up to the cluster for illumination.  Ok, so here's what happens (light switch on):

1.  Test lt blu/red at light switch: power
2.  Test lt blu/red at Cluster: nothing
3.  Test continuity between test points 1 & 2: closed circuit

How can I get voltage at one but not the other when test 3 proves they are connected?
1988 Thunderbird Turbo Coupe
'89 5.0 w/ ported intakes, Mallory Adjustable FPR, BBK shorties and H with 2.5" Flows, 130 amp 3G, 89 Mustang comp/wiring, Aluminum radiator w/ elec fan, T5 trans, King Cobra clutch, 3.55 gears, 13" Cobra brakes (front), Wilwood prop valve, Mustang A-arms, Front Coil-overs, MM CC plates, Silver 17x9 R's, 03 Cobra IRS, Aluminum DS, 2002 Mustang dash/console etc..., custom leather seats

Yes, I have another one!

Reply #1 –
The LB/R wire probably feeds other light bulbs besides the cluster.
You have continuity through these other bulbs, ground and the bulbs in the cluster.
Stick to voltage measurements for your trouble shooting.

My copy of the 87 EVTM is too blurry to be much help in this area.
 

Yes, I have another one!

Reply #2 –
hmm, i get it.  you're probably right.  But this wire also feeds the HVAC illumination which also sees no voltage...  I'm just confused on where to go next I guess...
1988 Thunderbird Turbo Coupe
'89 5.0 w/ ported intakes, Mallory Adjustable FPR, BBK shorties and H with 2.5" Flows, 130 amp 3G, 89 Mustang comp/wiring, Aluminum radiator w/ elec fan, T5 trans, King Cobra clutch, 3.55 gears, 13" Cobra brakes (front), Wilwood prop valve, Mustang A-arms, Front Coil-overs, MM CC plates, Silver 17x9 R's, 03 Cobra IRS, Aluminum DS, 2002 Mustang dash/console etc..., custom leather seats

Yes, I have another one!

Reply #3 –
Keep up the work after my last car got Totaled and even with getting my new car today i am 2 lazy to do much to any car for awhile.
[SIGPIC][/SIGPIC]


http://www.cardomain.com/id/Carpimp1987
1987 T-Bird AEROBIRD-GT had many many mods but is now totaled and is the car that made me want to start customizing everything all over again.
1988 T-Bird 5.0 HO DD/Sleeper/next project car :birdsmily:
1988 Cougar XR7 5.0 HO Vortech Supercharged being bulit right now :cougarsmily: