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Accessory relay electrical issues.


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'73 240z. New to Datsuns.

 

I've got a few lights which are not working: heater controls, choke/seatbelt/fog.

 

Tested the lights with a battery, they work.

 

1st image - shows unknown yellow power and black ground disconnected which is part of a group of wires running to this gold box under the glovebox. Accessory relay? The other end of these wires follows through to the choke/seat/fog panel. I put power to the yellow and I could hear a tick sound but still no lights to the panel.

 

2nd image - lights for the heater controls with the ground. These also don't light up. Connected to the accessory relay as well?

 

How can you tell if a relay is faulty?

 

Initially I had a problem with the heater blower which turned out to be no power going to it. There is a loose connection for the power with no female end in sight. Still hunting down the other end or I'll have to splice into another power source.

 

(I would search more but it's 2am and I'm sleeeeepy)

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