2003 Discovery 2 TD5....Hi I have the dreaded inertia switch in the locking ecu has activated causing the hazard warning lights to flash when driving. So far i have to switch off ignition open and close drivers door lock the car with remote key, then unlock and somtimes it clears. Atleast i'm assuming it's the inertia switch/sensor from reading previous threads on here.

But now even that is'nt working and removed fuse from indicators hazards till i can find a solution. Is there anything i can replace like the ecu with the inertia switch?

I have checked under the glove box and all ecu's seem firm you can move them slightly but not loose. Im assuming this is just an age thing or perhaps a little dampness has effected it.

Car has never off roaded and this all began just driving down a smooth road no bumps.

It will stop when i have nanocom evo connected but once thats disconnected it starts again.

Any ideas please as i'm getting a little frustrated with it now and with this weather i really need to use the Disco.

put a new inertia switch...and untill then unplug the existing one and bridge it's pins...or if this bypass doesnt cure it we'll speak again

sierrafery said:

put a new inertia switch...and untill then unplug the existing one and bridge it's pins...or if this bypass doesnt cure it we'll speak again

Click to expand...

Thats great thanks, off to search which plug and which pins to cross

see attachment

I did wonder wether that was it thanks much appreciated replaced fuse hazards flashing after a few seconds dis then connected plug ignition to No2 position and hazards stopped, Gonna source a new switch now.

So which pins if need be do i need to bridge 1 & 3?

first of all connect it back and push down it's rubber head maybe it's just tampered(based on your first post i supposed that you've already done that that's why i said to put a new one).... it's a normally closed switch which must open on shocks you have to close the circuit between pins 1-3

yeah i pushed down on the rubber head and thanks for the info on the crossing of pins

Same issue after replacing the turbo core and using some percussive adjustment to get the exhaust nuts off. Fixed the same way after a quick search. Thanks SF