Need help from wiring experts - two circuits not working Options

[jbachert]

1973 1.7

OK - so I will start by saying it's my fault - I accidentally bumped and caused a short at the terminals on the fuse box on circuit 3 (low beams) - so at least we know the cause.

The result is that:

1) The headlights do not work (parking lights, turns, etc do). No low beam, no high beam, no motor up for the headlights. (So technically I guess this is 4 circuits - circuits 1-4).

2) Everything on circuit 8 does not work (fresh air fan, horn, wipers, cigarette lighter).

I know this is going to require tracing out circuits to see where/what isn't working and I just printed out the wiring diagrams and I have a digital multimeter ready to go.

Just hoping for some advice from anybody who has some knowledge of the wiring as to where might be a good place to start, etc.

Thanks,
John

[HalfMoon]

1973 1.7

OK - so I will start by saying it's my fault - I accidentally bumped and caused a short at the terminals on the fuse box on circuit 3 (low beams) - so at least we know the cause.

The result is that:

1) The headlights do not work (parking lights, turns, etc do). No low beam, no high beam, no motor up for the headlights. (So technically I guess this is 4 circuits - circuits 1-4).

2) Everything on circuit 8 does not work (fresh air fan, horn, wipers, cigarette lighter).

I know this is going to require tracing out circuits to see where/what isn't working and I just printed out the wiring diagrams and I have a digital multimeter ready to go.

Just hoping for some advice from anybody who has some knowledge of the wiring as to where might be a good place to start, etc.

Thanks,
John

Actually I just recently discovered on my 1973 that they used a horn relay and if it's bad ALL of fuse block#8 will be dead. It's the relay behind the fuse panel closet to the wall (left)

[jbachert]

1973 1.7

OK - so I will start by saying it's my fault - I accidentally bumped and caused a short at the terminals on the fuse box on circuit 3 (low beams) - so at least we know the cause.

The result is that:

1) The headlights do not work (parking lights, turns, etc do). No low beam, no high beam, no motor up for the headlights. (So technically I guess this is 4 circuits - circuits 1-4).

2) Everything on circuit 8 does not work (fresh air fan, horn, wipers, cigarette lighter).

I know this is going to require tracing out circuits to see where/what isn't working and I just printed out the wiring diagrams and I have a digital multimeter ready to go.

Just hoping for some advice from anybody who has some knowledge of the wiring as to where might be a good place to start, etc.

Thanks,
John

Actually I just recently discovered on my 1973 that they used a horn relay and if it's bad ALL of fuse block#8 will be dead. It's the relay behind the fuse panel closet to the wall (left)

I figured out the problem quite some time ago (see my post above) - it wasn't a relay it was a bad ignition switch.