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Discussion Starter #1
Well I've got to track down the elusive "Airbag Fault", since my local man can't find a problem and I'll fail the next inspection if the SRS light and error message are still there. Testbook just says "open circuit" apparently.

No side airbags, single crash sensor, rotary coupler OK.

I've searched through all the historical posts and am about to start checking the yellow cables and connectors, so if anyone has breaking news on this topic or other great ideas I'd like to hear 'em now.

One question - do I need testbook to reset the fault code or should the error message and SRS light just disappear when I fix whatever the problem is?

Thanks

GRC
 

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Check and clean the connection on the front crash sensor front left of the car just behind the headlights mine gave me this message and after wiggling the wire it fix its self and never came back!
 

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Discussion Starter #3
Hi Jeremy,

Thanks for the suggestion but I don't have the distributed system on my Rangie, so there are no external sensors behind the headlights. I just have the single sensor inside the DCU.

GRC
 

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Only thought that springs to mind is that if your rig has had the sunroof left open at some point the SRS DCU and connectors could have gotten wet even through the floor of the center cubby and switch pack... ask me how I know. :roll: I have also ran across one rig where everything under the switch pack and cubby was nice and sticky with a failed mouldy science experiment. I think it was sugared coffee, but could have been a milk shake. Since you lack the two front crash sensors it shouldn;t be too bad to check the interior connections and have it rescanned. It would make for a good day of cleaning your interior and tightening any squeeks. From memory you would have the instrument cluster, rotary coupler, passenger bag, drivers bag, diagnostics connector and of course the DCU to check and clean connectors on. Be happy you don;t have the two front crash sensors. THe batteries love to make a mess of the wiring if they leak.
 

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Discussion Starter #5
rrtoadhall said:
Only thought that springs to mind is that if your rig has had the sunroof left open at some point the SRS DCU and connectors could have gotten wet even through the floor of the center cubby and switch pack... ask me how I know. :roll: I have also ran across one rig where everything under the switch pack and cubby was nice and sticky with a failed mouldy science experiment. I think it was sugared coffee, but could have been a milk shake. Since you lack the two front crash sensors it shouldn;t be too bad to check the interior connections and have it rescanned. It would make for a good day of cleaning your interior and tightening any squeeks. From memory you would have the instrument cluster, rotary coupler, passenger bag, drivers bag, diagnostics connector and of course the DCU to check and clean connectors on. Be happy you don;t have the two front crash sensors. THe batteries love to make a mess of the wiring if they leak.
Toady - you didn't leave your sunroof open in a storm did you? Tsk! Tsk! I haven't managed that trick yet ... :lol:

Area under switch pack etc. is OK from memory - had to remove it twice to move carpet to check the footwells for water - but will check again.

My man had to replace the centre blend motor last week - he's had the dash apart and had a good poke around at the same time so I'm hoping the problem is somewhere else.

I'm happy that I don't have the extra sensors because it's less to go wrong. The old girl is beginning to show her age now - all the secondary / tertiary stuff is starting to fail. Just noticed that the rear headlining and sunroof shade lining have dropped. Interior mirror cover has fallen off. Drivers seat arm rest has broken (again). Water in the spare tyre well (just drilled a small drain hole - simple). Just can't bring myself to spring for a newer model on my meagre pension.

Thank you and good night.

GRC
 

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I have also ran across one rig where everything under the switch pack and cubby was nice and sticky with a failed mouldy science experiment.
This was my experience with this fault, I found a little resistor wrapped in black electrical tape under the cubby box that had burnt out from coffee/beer/river water/goo spillage. Matched it up with a Radio Shack one, - sorry, I don't remember the spec but it was less than a buck to buy and $40 to clear the error at the stealer.

Your results may vary, but the whole time I was running this down I was fearful the airbag system would suddenly blow me into the back seat when I crossed a wrong wire,... My 2 cents would gladly be spent for a way to turn the whole thing off, error message included and be done with the whole airbag system.
 

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Base model export 4.0 l RR had no SRS installed, infact on the left (RHD) they added a extra open gloove box.

On a personal note I do not like airbags, a few years back in the UK we attended a accident involving a car clipping the front of a stationary Ford Escort, Escort driver was paralysed from the neck down for the rest of his life but thats not the only incident I know where air bags have caused serious injury, in certain situations they do save lives but I still dont like them either way
 

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I live in the Arizona desert, I believe nothing 15 years old that is made of rubber is going to save my life here. Thousands of dollars to replace the system with new stuff is not going to happen, either.

Hope you find what is wrong with it, I only tried so hard because I thought the guy might fail it at the inspection for the license plates.
 

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Discussion Starter #9
Well 2 years on and I still haven't fixed the fault, so I thought I'd take another look at why the SRS light is on and "Airbag Fault" message appears. I was poking around the fuse box because the A/C has crapped out again (clutch has zero volts ) and I noticed that fuse F23 (10A) had blown. I replaced it with a new one, switched on and it immediately blew again.
Unfortunately, I can't find anything about the SRS circuitry in the ETM, just a simple diagram in Section Y2 Page 10 (Fuse Details) which shows that it's between the fuse box and Airbag Diagnostic Control Module.
Any ideas what could cause it to blow?
Had a root around the bright yellow cable harness under the dash and couldn't see any loose connectors. No obvious damp or water damage anywhere (ambient temperature currently 35 degrees).
My P38 4.6 HSE is an early model without the extra crash sensors or airbags.
 
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