Re: 2003 Toyota Corolla right hand drive. Turn signals...
Check all bulbs and clean them with steel wool. Clean the inside of socket with fine sand paper. Check all grounds that lead to the signal lights clean all grounds. And make sure they are tight.
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replace the fuses first. for turn/hazards.
the HAZ fuse 10 amps ., do hazards fail?????????
old car, very old. 1980 corolla.
first off, the lamps are brass based lamps. 115x lamps
they can short so replace them all or remove all of them
and put only 1 new lamp in (of the 4) if this works, good.
if not use a voltmeter to find the cause.
12v during a flash is good, 0v dead, 6v is shorted wires.
this is easy, dont panic, get the schematic for the car is best way.
The FSM has this but are rare for such and old car.
i looked online , alldata.com
and the schematic is there.
the path is from battery to ground as follows
10a haz fuse and 5am turn fuse. (2 fuse!)
the fuses drives the HAZ module
the HAZ module drives the lamps directly in HAZ mode
in blink mode the HAZ module drives the combo turn switch.
a bad flasher module KILL BOTH, (did it?)
the comb drives left or right side and the lamps are all grounded
completing the path of electrics, and the lamps glow.
current flows, and the lamps glow.
lamps
green-black is left
green-yell is left side.
the best test for this car, is to cycle the HAZ button over and over
until they work, most switches this old. 33 years are dirty and fail.
so cycle it. 10 times, if the HAZ fails.
it must work on HAZ or its all a wasted effort.
because the HAZ module feeds the binkers...
Hazards work only when lights are off. Left signal light stays lit on the dash and does not blink and is stuck on (lit up) when lights are lit. If I place hazards on while lights are on only right side flashes and whole dash lights flash too... I replaced the flasher relay and it still does not work. Suggestions anyone? Thanks!
Hi, Have you replaced the signal switch the thing that clicks.(right and/or left) The hazard switch and the signal switch are 2 seperate systems. Check and replace.
Most likely a fuse is bad, get out your owners manual and see which one powers the lights. Buy a good test light and it will help you the rest of your mechanic career. Then you can test the fuses without pulling them out to look at them, and test them electrically. first to confirm they are indeed getting power and then that they are good.
right above your left hand foot if your not a brit in the UK or so.
Some cars have 2 units. Simple short test with a mulimeter will point out which one or both or other problem.
Could be a bad relay switch contact. Or bulb contacts. Remove the bulbs and check it with a 12V test light. Aligator clip to any ground and touch the contacts inside the bulb socket.
Are you talking about the marker light next to the headlamp?
I am pretty sure that this is a "dual filament bulb". One is for the turn signals, and the other is the marker light
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