I've got a weird wiring issue. Maybe someone has a suggestion/answer. Specs: 1971 Toyota Hilux 8rc with 4 speed My fender mount turn signals aren't working properly. I have replaced the Nippondenso flasher unit with a 2 prong electronic flasher. I have replaced both bulbs and cleaned both sockets. Throughout all tests, rear blinkers and taillights work properly. Symptoms... Ignition on and not running. (Same symptoms while running) - Both blinkers work. However, the passenger side is bright and drivers side is dim. Ignition on, headlights on and not running. (Same symptoms while running) - Drivers side front stays brightly lit (using the larger flasher filament instead of the standard filament) with no flashing. Dash light does not flash. - Passenger flashes as it should - front, rear and dash. Ignition on, hazards on. - Drivers side now flashes but only with the smaller, less bright filament. - Passenger side works as it should. Engine on, hazards on. - nothing - anywhere
After reading the Haynes manual (the Chilton manual is virtually ZERO help when it comes to the 1st gen.), I think the best thing to check would be the turn signal relay. I'm just not sure why the bright/dim would change sides. Any other suggestions would be greatly appreciated. Thanks!
Check the relay, and headlight switch. Pretty sure all the light wiring goes thru that switch. Just check the wiring
I'll probably just start the process of elimination. I know the flasher is working although I don't like it - not a "loud" unit so it doesn't make an audible clicking. Either way, I'll be tracking down new headlight/hazard switches and move on from there.
You're probably going to end up running new wiring. Based on the age of the vehicle, building a complete new harness for the vehicle wouldn't be a bad idea.
Aftermarket harness. I used one on mine. Took me a while but well worth it. Now i know shits all new.
Something that old I'd definitely go with a new aftermarket harness.. I've thought about doing a Painless harness in my other truck, doesn't look difficult just time consuming.
From what i read when i was doing mine, practically all the aftermarket harnesses are identical in wire color and all that. Price point changes with the brand. Painless is overpriced IMHO. I went with EZ Wiring but theres others out there that are more complete for jus a bit more $. And still below painless prices.
I only mention Painless since most everyone knows of them.. When I was looking at them for my truck i noticed most aftermarket harness kits use the GM color codes.
I've been swamped at work lately so I haven't tracked the issue down yet. That said, I did find out that some old Toyotas (FJ40 in particular - nice as the 40 series are waaaaay more plentiful than the Hilux) share some parts. New headlight switch anyone? http://www.cruisercorps.com/fj40-pa...light-pull-switch-1968-9-1971-toyota-oem.html