hazard light failer.

[ADENUF]

G'day guys/gals.
I've just finished the dummie tail light mod on my 98 gu,works and looks great.
Unfortunatly my hazard lights seem to have stopped working.they worked after the mod when i tested all the lights but seem to have stopped a day later,all the indicators work and all the indicator lights work with central locking.(flash once for lock and 4 times for open)
I've checked the fuze under the bonet 10amp and that was not blown
Would it be a relay( dont know where that is) or something else that i dont know about?
Any advice greatly appreciated.
Steve.

[threedogs]

I was told that they would blow as fuse was weak if towing and used your hazard. I'd be re checking your connections with a multi meter,
Check all new earths as well

[ADENUF]

Ive towed a trailer before and had to use hazards without a prob,what i will do after i get this sorted will be to use led globes to take a bit of pressure of the fuse,
do you happen to know where the hazard relay is located?
all joints were soldered and the earth is on bare metal.

[threedogs]

On the GU its under bonnet in front of driver, I already have all globes either LED or HID.
Lost pics of globes but only needed 50ohm resistor on every corner for indicators

[Yendor]

The GUs use the same flasher unit (relay) for the hazards and indicators. If your indicators are working I don't think your flasher unit is the problem.

Are your sure you checked the correct fuse under the bonnet? replace it with a 15 amp fuse anyway.

If the fuse is not blown you may have a problem with your hazard light switch, try pressing the hazard switch 20 or so times and see if it starts working.

[jack]

Hi Mate,

I've done this mod and it's always the hazard light fuse that blows, replace it with a 15A one and it will work fine (even towing).

[ADENUF]

Yender,first thing ill do when i get back to the car is press hazard light button 20 or so times and see if thats the culprit.
And im reasonably confident i checked the right fuse according to the fuse cover diagram.its a 10 amp fuse.
thanks.

[Yendor]

I would replace the hazard light fuse first.

[ADENUF]

Apollofish/Yenor
Thanks for the reply,Im hesitant to just drop a larger fuse untill i know what the problem is.Reading other posts with simular problems they advise caution when upping the size of a fuse.
Steve.

[ADENUF]

@Yendor,when i get home from work tonight ill replace the 10 amp fuse thats in there atm with another 10amp just incase the fuse did blow and im blind and cant see it.that will at least give me an indication if its that fuse or not.

[ADENUF]

Threedogs,excuse my ignorance but what are HID globes?LED im familiar with.

[Yendor]

Apollofish/Yenor
Thanks for the reply,Im hesitant to just drop a larger fuse untill i know what the problem is.Reading other posts with simular problems they advise caution when upping the size of a fuse.
Steve.

Hi Steve,

The "problem", your words.

Is that you have increased the number of bulbs in the hazard light circuit by doing the dummy tail light mod.

The original hazard light fuse was only calculated to run the original standard hazard lights, this does not included bull bar lights, dummy tail lights or trailer lights.

When ever an extra light is added to the system the amount of current in the system increases.

The standard 10 amp fuse is only designed to run the factory front and rear hazard lights.

When you add a bull bar with lights, extra tail lights or a trailer, this increases the load on the hazard light circuit above 10 amps that's why the fuse blows.

The quick and easy fix is to replace the 10 amp fuse with a 15 amp fuse, or as 3D has stated reduce the load on the circuit by fitting LED bulbs.

Cheers Rodney

[ADENUF]

Hey Yendor and other advisers.
I got home and first thing i did was get my glasses and have another look at the fuse.bugger me if it wasn't blown:redface:
I dropped a 15 amp fuse in just to see and sure enough hazard light are working as they should do.
Im still not happy with the upping the fuse to 15 amp as i have concerns about the wiring not being rated for that ampage,so ill source some LED's and do the 4 corners as was suggested and retry the 10 amp.
In the mean time ill leave the 15amp in as its now roadworthy and in an emergency im covered.
next time ill get my Glasses out first before i trust my APIA eyes:P
Thanks Steve

[jack]

Heaps on here with the 15amp upgrade, still to hear from anyone that has experienced any issues because of it. Son in law is an auto elec and he didn't see any issues with it.

[Dales300exc]

Jap wiring is pretty good. And realistically how often does one use hazards?

[Yendor]

Hey Yendor and other advisers.
I got home and first thing i did was get my glasses and have another look at the fuse.bugger me if it wasn't blown:redface:
I dropped a 15 amp fuse in just to see and sure enough hazard light are working as they should do.
Im still not happy with the upping the fuse to 15 amp as i have concerns about the wiring not being rated for that ampage,so ill source some LED's and do the 4 corners as was suggested and retry the 10 amp.
In the mean time ill leave the 15amp in as its now roadworthy and in an emergency im covered.
next time ill get my Glasses out first before i trust my APIA eyes:P
Thanks Steve

Hi Steve,

Good job on sorting it out, yep replacing the rear bulbs with LEDs is a good option.

If you decide to just leave it as it is now, the flasher unit will more then likely fail before the wiring does, even then, this will depend on how often and for how long the hazards lights are on for.

Cheers Rodney

[Morton]

guys, thanks for this post, it just sorted out a long running issue with my GU for the past 3 years, 3 years ago at 9pm on a rainy night I had a blowout on my camper on a freeway around Logan, I had to slow down to 20kph & hit my hazards but the fuse blew, I couldnt get off the freeway for appx 500m, I was fully loaded & cars where skidding & all manner of shyte was happening behind me, I limped off onto a side section 2 foot off the freeway & had to replace the tyre in the dark with my 4 kids in the car whilst cars were flying past me at 100kph, I was never so scared, I couldnt change that tyre quick enough, it has since done it appx 6-8 times since but only when I have the camper on, I now keep 3-4 spare fuses in my finger well in the door for this reason, this weekend I am dropping in a 15 amp fuse, I have always refused to put one in previously because you just dont do that but the wiring was tested twice & all was good, thanks again all