blown courtsy light fuse

[Donald S.]

hi all i have installed a new lectric dash harness and have began to make all the connections to the dash clock radio heater ect all of a sudden i notice a blown fuse so i replace it . pop blows again ,i have unpluged every thing i can think of that would run off that fuse .is there a list of what runs off each fuse some where in some book i have been looking but can't find such a list .thanks Don...

[Stephen L.]

Re: blown courtsy light fuse

Look in your Service Manual or AIM at the wiring diagram. Start at the fuse and trace out the wires to the items that this fuse serves.

It's a good exercise and you'll become aquainted with the wiring diagram and you'll probably find the problem.........through elimination

[Rich P.]

Re: blown courtsy light fuse

hi all i have installed a new lectric dash harness and have began to make all the connections to the dash clock radio heater ect all of a sudden i notice a blown fuse so i replace it . pop blows again ,i have unpluged every thing i can think of that would run off that fuse .is there a list of what runs off each fuse some where in some book i have been looking but can't find such a list .thanks Don...

Don,

check to make sure that you have double contact bulbs in the sockets and not single contact bulbs. Check in each socket and bulb. You might find that to be the culprit.

Rich

[John D.]

Re: blown courtsy light fuse

Don,

check to make sure that you have double contact bulbs in the sockets and not single contact bulbs. Check in each socket and bulb. You might find that to be the culprit.

Rich

Rich, The correct courtesy lite bulb is a #90. The originals used a very small glass globe. Now a #89 looks the same except it's single contact. Some of the foreign made bulbs are really a bear to install. Some of he USA made 90's are also. Seems they put too much solder on the contacts. Just file a tad off. Wouldn't take much to blow a fuse if you don't have the #90 installed correctly either. The imported bulbs have a much bigger globe.
JD

[Donald S.]

Re: blown courtsy light fuse

hi again iv'e been looking at the wiring diagram for a 66 but for this circut it appears to be the same as 65 i see 2 circuts off the head lamp switch , the clock ,the cig lighter and the door jamb switches controling the under dash switches am i missing any thing ? if not it should by a process of elimination not take long in the morning to find the problem . thanks for your help Don.

[Rich P.]

Re: blown courtsy light fuse

Don,

the first thing I would do is to remove all 3 courtsy bulbs from thier sockets (2 under dash and halo if it's a coupe or rear if it's a convertable) and the put a new fuse in. Thats the simplest place to start.

Rich

[John M.]

Re: blown courtsy light fuse

I believe the lighter is also on this circuit. Many a loose element have caused a blown ctsy fuse.

Don,

the first thing I would do is to remove all 3 courtsy bulbs from thier sockets (2 under dash and halo if it's a coupe or rear if it's a convertable) and the put a new fuse in. Thats the simplest place to start.

Rich

[John H.]

Re: blown courtsy light fuse

The glove box light and the brake light switch are also powered from that fuse; the headlight switch has nothing to do with that circuit.

[Donald S.]

Re: blown courtsy light fuse

hi all found it . it was the clock that i just got back from restoration . the pwr pole that comes through the rubber gromet on the rear housing was miss aligned and the pole was touching the housing and creating the short .2 hours of searching and a 5 minuet fix . thanks all Don.

[Richard M.]

Re: blown courtsy light fuse

Glad you found it......but one has to wonder how the restoration shop tested their work before shipping it off to you?

Rich