Thread: Hella hazard switch problem.

Clearly in the wiring diagram you have the terminal 30 connects through to terminal 49 for operation of the hazards. Using a multi meter I suggest you check the 30B terminal on the new switch for connection to terminal 49 when the hazard switch is on. Then see what terminal 30 switches to, if anything. With the switch off, the path would be terminal 15 through to terminal 49.

With the hazard switch on, terminal 49A should connect to L and R to bridge the indicator switch on both sides.

30b from memory is the remote signal light for the hazard switch.

if its what I think it is it will flash a hazard warning light alternately to the indicator lights and in dash warning lights.

Hi Dave

The switch is internally illuminated. 30 is battery (constant) and I found a reference for 30a being a secondary battery source.

I was wondering if it could be an additional feed from something like a security alarm?

I'll put a meter on it tomorrow.

Diana.

P.S. We couldn't find a tilt tray to hire capable of 8T without a driver coming with it. You were the preferred option, if we could find one.

all good, drop dead date if you need me to steer for the 18th is next weekend.

we had issues with the change in the pin configuration on the hazard switches. we found the extra pin was a reversed pole output on the flash, when the normal outputs were on it wasnt and vice versa.

Tested out the terminals. must have had a bad contact or disconnection on 15/49a as the switched worked as normal for flashes with ignition on. Hazard still wouldn't work.

Tested 30B which makes a closed circuit with 30 when the Hazard switched on. So I ran a lead from 30B to piggyback on 49 and (almost) everything worked.

The one failure was a piezzo buzzer I have on C (pilot lamp) only worked on Hazard, not regular flashers (when I want it to sound) but I can live without it.

Originally Posted by Lotz-A-Landies

Tested out the terminals. must have had a bad contact or disconnection on 15/49a as the switched worked as normal for flashes with ignition on. Hazard still wouldn't work.

Tested 30B which makes a closed circuit with 30 when the Hazard switched on. So I ran a lead from 30B to piggyback on 49 and (almost) everything worked.

The one failure was a piezzo buzzer I have on C (pilot lamp) only worked on Hazard, not regular flashers (when I want it to sound) but I can live without it.

buy a bridge rectifier from jaycar, make a connection from each indicator from the last connection before it all goes out past the fire wall to each side of the recitfier, find the terminal that puts out +ve voltage and hang the piezo off that.

Done.

Originally Posted by Lotz-A-Landies

Tested out the terminals. must have had a bad contact or disconnection on 15/49a as the switched worked as normal for flashes with ignition on. Hazard still wouldn't work.

Tested 30B which makes a closed circuit with 30 when the Hazard switched on. So I ran a lead from 30B to piggyback on 49 and (almost) everything worked.

The one failure was a piezzo buzzer I have on C (pilot lamp) only worked on Hazard, not regular flashers (when I want it to sound) but I can live without it.

To me that sounds like a switch designed to run a separate flasher can for the hazards, powered by 30B and flasher 49A output to switch 49A. The connection from the indicator flasher can would be removed from switch terminal 49A.