Thread: Hazard lights coming on rough roads

You are living in the most beautiful part of this country!! The sensor is part of the alarm unit behind the instrument cluster. A green box about 70mm by 100mm . It switches on the hazards to make the vehicle visible after an accident. Usually the sensors fail in this manner by becoming sensiyive to normal defender activities like rough roads and there are some people apparently who have been able to remove them from the curcuut board.

DEFENDER2.NET - View topic - Hazards flashing when I hit a bump

Jc

Have you tried lowering your tyre pressures to help with the insane rattling on corrogations?
I find that dropping out 10psi will have a very marked effect on corrogations

I'm going to give this a whirl at some point DEFENDER2.NET - View topic - Hazards flashing when I hit a bump

I think I'll use some foam-backed sticky tape and then screw it to the firewall so there's something of a 'cushion' effect. I think i might cover the whole board in Glad Wrap or similar too, in order to protect it from the almost inevitable water damage at some point in its life.

Will report back once done and tested.

Originally Posted by trout1105

Have you tried lowering your tyre pressures to help with the insane rattling on corrogations?
I find that dropping out 10psi will have a very marked effect on corrogations

Yeah defently just when your traveling all day on these road theres always going to be some hard hits

So Im led to believe its this sensor under the bonnet which has come free and by the sounds of things can become sensitive over time too

There is a similar setup in the D1's where the re-set switch is in the enginebay on the bulkhead. I got my auto sparky to shift the switch to my aftermarket instrument binnacle on my dash. The last time I set mine off I was on the Tanami Rd coming back from Wolfe Creek Crater and I hit a large washout avoiding a roadtrain in the pouring rain. It was much nicer turning off the hazards by hitting the button in the cab rather than getting under the bonnet and getting soaked in a tropical downpour!

Originally Posted by Aklements

So Im led to believe its this sensor under the bonnet which has come free and by the sounds of things can become sensitive over time too

That switch once activated will switch off the engine... its unlikely to be that inertia switch. As mentioned before the alarm unit will flash the indicators after an impact but the underbonnet inertia switch there will switch off the engine and fuel pump supply in defenders.