Here's what I know: my Olive 77 had Saginaw power steering when I bought it:
By the way, it works great. It also came with this clown horn button screwed onto the dash (since removed):
I've had this rig over 7 years and can't remember if the horn has ever worked, but I suspect there's a connection between these two 'additions.' After I bought my white 77 WITH a working OEM horn I decided to ditch the clown button and restore the OEM, using the white's working horn as a reference. I've verified with multimeter the following:
Hot wiring the + battery terminal to each hot connector on the horns results in solid, loud Beep
Have continuity in green/white horn wires from driver side terminal spade to passenger side terminal spade
Have continuity in green/red horn relay wire from relay terminal to brake light connector under dash
Have continuity in green/yellow horn relay grounding wire from relay terminal to turn signal assembly steering wheel connector spring button:
Plugging the horn relay connector with the 3 wires attached to it into the horn relay switch immediately blows the brake light fuse (20 amp)
Removing the green/yellow horn grounding wire from the connector and plugging it back into the switch does NOT blow the brake light fuse
The green/red horn relay wire terminal shows 12 volts on multimeter
No visible grounding wire on the steering wheel shaft (power steering)
I know the three horn buttons on steering wheel, and horn relay are functional and clean, verified by swapping them with the other rig's working steering wheel buttons and horn relay
What are the usual suspects for blowing the brake light fuse? By the way, with the horn relay disconnected, the brake lights work when brake pedal pushed, and emergency brake light works when emergency brake is pulled
What am I missing here?
By the way, it works great. It also came with this clown horn button screwed onto the dash (since removed):
I've had this rig over 7 years and can't remember if the horn has ever worked, but I suspect there's a connection between these two 'additions.' After I bought my white 77 WITH a working OEM horn I decided to ditch the clown button and restore the OEM, using the white's working horn as a reference. I've verified with multimeter the following:
Hot wiring the + battery terminal to each hot connector on the horns results in solid, loud Beep
Have continuity in green/white horn wires from driver side terminal spade to passenger side terminal spade
Have continuity in green/red horn relay wire from relay terminal to brake light connector under dash
Have continuity in green/yellow horn relay grounding wire from relay terminal to turn signal assembly steering wheel connector spring button:
Plugging the horn relay connector with the 3 wires attached to it into the horn relay switch immediately blows the brake light fuse (20 amp)
Removing the green/yellow horn grounding wire from the connector and plugging it back into the switch does NOT blow the brake light fuse
The green/red horn relay wire terminal shows 12 volts on multimeter
No visible grounding wire on the steering wheel shaft (power steering)
I know the three horn buttons on steering wheel, and horn relay are functional and clean, verified by swapping them with the other rig's working steering wheel buttons and horn relay
What are the usual suspects for blowing the brake light fuse? By the way, with the horn relay disconnected, the brake lights work when brake pedal pushed, and emergency brake light works when emergency brake is pulled
What am I missing here?