Ampmeter Gauge Wiring to Horn Relay

[John L.]

The ampmeter gauge in my '66 has not worked properly for years as the needle always points to the hash mark between 0 and 40+ no matter if I am driving the car on the highway, around town, sitting at a light or when the ignition is off. So, I decided to take a look at the wire attached to the horn relay. The assembly manual shows that there should be a single red wire attached to one of the horn relay tabs but from the diagram I can not tell if the wire is attached to the bottom right tab or the left tab marked "bat".

In my car, there is both a red and a back/white wire attached to the bottom right tab, is this set-up correct? Thanks

[John H.]

Re: Ampmeter Gauge Wiring to Horn Relay

The ampmeter gauge in my '66 has not worked properly for years as the needle always points to the hash mark between 0 and 40+ no matter if I am driving the car on the highway, around town, sitting at a light or when the ignition is off. So, I decided to take a look at the wire attached to the horn relay. The assembly manual shows that there should be a single red wire attached to one of the horn relay tabs but from the diagram I can not tell if the wire is attached to the bottom right tab or the left tab marked "bat".

In my car, there is both a red and a back/white wire attached to the bottom right tab, is this set-up correct? Thanks

John -

It doesn't make any difference which of the two screw terminals on that hot buss you use - they're electrically common.

[William C.]

Re: Ampmeter Gauge Wiring to Horn Relay

most common problem is corrosion in the connection on the engine side where the wiring harness connects. Carefully remove the connections, clean the terminals reconnect and then recheck.