Yes it does, u just need a £32.50 adapter ...application list here http://www.mailorder4x4.com/acatalog/Hawkeye_Mod.pdf

Hi

Even if you fitted a brand new rotary coupler the fault light would not go away untill it has been reset using diagnostics.

So you may have already fixed the problem you just need the reset now. That is what I had to do with mine.

Cheers

I replaced mine with a second hand eBay special just the other day. The SRS light was intermittently coming on when turning left so I took a guess at the rotary coupler!

As stated, the connectors have 'shorting bars' as a safety measure when removing and installing SRS components.

I disconnected the battery and inadvertently reconnected it with the airbag plug disconnected. The SRS light was then permanently on. After disconnecting the battery again, refitting the airbag plug and battery connection then the SRS light has behaved correctly ever since!

If you buy a second hand one, then always centre it as per the RAVE instruction just in case.

Pitcaig said:

Hi

Even if you fitted a brand new rotary coupler the fault light would not go away untill it has been reset using diagnostics.

Cheers

Click to expand...

That was not the case with mine, see above!

SRS light fixed!!

Pitcaig said:

Even if you fitted a brand new rotary coupler the fault light would not go away untill it has been reset using diagnostics.

Click to expand...

This does not appear to be true for mine after all... I have a '97 Disco 300Tdi auto ES. The local garage and I replaced the rotary coupler today (for a fee of £20 including coffee, and use of his grease gun), started the engine and the SRS light went out by itself!

So despite what lots of people say, my SRS light did go out by itself. I therefore do not need to plug in the diagnostics to fix it.

Very happy indeed!

Also did oil and filter change today and started trying to shim one of the trailing arms, but I simply cannot jack the chassis up high enough with my bottle jack and a stack of wood! That's for another day, and not a complicated task anyway.

Hi

Thats great news glad you got it fixed.

On Disco 1's there was two types of SRS systems. The earlier one was the same as the RRC which I have. But you must have the later one which I've not had any dealing with before. Good to know it will reset itself.

Thanks for letting us know how you got on.

No problem - I wonder in which year the SRS system changed over then... if the older Disco 1 needs manually resetting with the diagnostics, but the newer Disco 1 resets automaticaly it'd be interesting to know which year they changed...

Right, for those who are interested, some pics!!!!!

Basically, I took apart the old, broken rotary coupler to see how they are designed and put together.



Here's the airbag plug that connects down inside the dashboard...


You can see two "clips" on the inside, against the pins. These are what make the complete circuit between both pins when the rotary coupler is disconnected.


Here are the "clips" having been extracted from the plug (which i smashed with a hammer to open).


This is the horn/cruise control plug which connects down inside the dashboard.


And the back-end of the same plug.


This is the horn/cruise control plug which connects inside the steering wheel itself.


This is the connecter (which cannot be unplugged) on the coupler itself on the "outside" (the steering wheel side).


This is the airbag plug which connects to the airbag itself.


This is inside the airbag plug which connects to the airbag itself. There are only two pins, of course, hence why the red wire comes up the right hand side, goes around the coil and then outputs on the left-hand pin.


Here is another photo from another angle, so you can see which pins line up with which wires etc...


The insides of the coupler itself (which I broke open)...


The "outside" part of the coupler (steering wheel side)...


The "inside" part of the coupler (dashboard side)...


All 14 feet or so of ribbon cable wound out onto the coffee table so you can see how much is needed to achieve 5 full turns!


And finally the barcode and part number.


Photos hosted here: On-Going Land Rover Maintenance Photos | Richard Hobbs

Pitcaig said:

Hi

I've just been out and checked my spare one. There is continuity between the Red and Yellow wire. Inside the plug which connects to the Airbag is a small coil which links the two wires together.

So I would check all the other wires for the horn and crusie control and if they check out ok the I would think the coupler is ok.

Hope this helps

Cheers
Graeme

Click to expand...

There is indeed a small coil, but it is not the coil that connects the two wires - it is the "clips" in the plug at the other end

nice one...at least now we know what's going on inside there ...that smal coil is a kind of electric "damper" to protect the squib from inductive voltages

As usual, now i've learned something I'm keen to share it, so I'm blogging my rotary coupler photos!

Can anyone confirm that YRC100350 is compatible with the following vehicles:

• Discovery 1 (300Tdi and V8) from 1994-1998 (from VIN WA762769)
• Discovery 2 (Td5 and V8) from 1998-2004
• Range Rover Classic (Soft dash models) from 1994-1996
• Range Rover P38 (All models) from 1994-2002 (from VIN VA346794)

Have I got anything above wrong?

Have I missed anything out?

can I just add that the ribbon wires are thus looking at fishsponges photo No 13 top to bottom...
srs yellow wire
srs red wire
white
orange
green brown
yellow black
pink black
I found that the yellow had no continuity so took mine apart to find the ribbon had a crease in it so broke the copper ribbon near the top by that slider toungue Im debating wether its worth doing a repair as most joints are clip glued or soldered have got a spare to fit so may play later..

i just connected the srs light in the dash to the heater plug light in the dash, light comes on light goes off tester happy lol.

i'm trying to get srs going, behind instrment panel I have a loose yellow wire....is this for srs? if so where should it go?