View Full Version : High beams/Hazard lights wiring:
DAVID_T
12-29-2020, 07:29 PM
Having issues with high beams and hazard wiring.
I have:
Ron Francis Wiring
Russ Thompson Turn signal
FF MKIII supplied headlight pull/turn switch, and 4X two prong toggle switches
I'm using the RT signal for the blinkers, and the stalk for the horn.
Using FF supplied pull/turn switch for headlights and dash lights.
As far as the hazards and the high beams, the RF instructions suggest I should have a 3 prong toggle switch, do I need it to make the high beams work? Also, they don't say anything about the hazard wiring. Any help on these for me?
Thank you!!
140047
140046
140045
The wiring schematic that came with the harness shows exactly how to wire the headlight dimmer and the hazard lights:
https://thefactoryfiveforum.com/attachment.php?attachmentid=140048&d=1609290391
First for the headlight dimmer. You need the three-pin SPDT (On-On) toggle switch. The light blue headlight SW->Dim SW wire goes to the center pin on the toggle switch. The red low beam and brown high beam wires go to the outer pins. The switch then selects which of the headlight wires gets power.
The hazard switch is a six-pin DPST switch. The two pink (hazard flasher) wires go to the two center pins on the switch. The blue and green (left/right) wires go to two pins on the same end of the switch leaving the two pins on the other end of the switch empty.
I did my Hi/Low switch differently than what the manual describes. I used a 5-pin relay to wire mine with the trigger wire running through a foot operated dimmer switch.
https://thefactoryfiveforum.com/attachment.php?attachmentid=126719&d=1587241103
With my wiring, the relay controls which headlight setting is powered with the low-beams being the default. This way, if my dimmer switch fails, I still have low beams headlights.
edwardb
12-29-2020, 09:09 PM
As Papa said, everything you need is in the RF wiring diagram. Wire your setup exactly like shown there and it will work. That's the most important thing to stress IMO.
Using the pushbuttom on the RT assembly for the horn is completely straightforward. You're just replacing the kit provided dash pushbutton switch with the one on the turn signal stalk. Doesn't interact with any of the lighting circuits.
For turn signals, the Russ Thompson assembly exactly duplicates the dash mounted switch that comes with the kit. So wire it just like shown in the diagram. Power to the common lead. Left to left. Right to right.
Your hazards have to have the indicated DPST (double pole single throw) switch as a minimum. The kit provides a DPDT (double pole double throw) which works. You just don't attach anything to one set of terminals. Your pictures don't show the proper switch. If you don't wire this correctly, you'll backfeed to your turn signals and it all gets weird.
The low/high beam requires a SPDT (single pole double throw) switch. Headlight power to the center. High beam on one side (along with the indicator). Low beam on the other side. Can also be done with a relay as Papa shows.
It's all pretty simple if you take it one step and circuit at a time.
DAVID_T
12-30-2020, 01:03 PM
Thank you very much for the replies! Yeah, that's what was weirding me out. My supplied switches won't work, then. OK, so I'll pick up a 6 pin DPST, and a 3 pin SPDT switch.
Thank you very much! It is sincerely appreciated.