Welcome aboard, a piece of advice - the world has moved on from fixing things with spanners and trying to understand a vehicle such as a D3 without an effective diagnostic tool is like trying to tune a Holley carburettor without access to jets or a screwdriver to remove those bloody bowl screws.
Invest in a suitable device ( I have an IID Gap tool) and suddenly the fear of not knowing which airbag is deflating and why becomes a much simpler process of elimination using the diagnostic results from the codes that you can now access instead of just seeing a seemingly unrelated series of errors and flashing lights.
The diagnostic tools for Land Rovers aren't cheap unfortunately (I have a license for Jscan for my daughters jeep which cost $40 and a cheap dongle to match it) but the reality is that without one it is very difficult to understand how the vehicle works and easy to develop a (sometimes irrational) fear of it breaking.
Regards,
Tote
Go home, your igloo is on fire....
2014 Chile Red L494 RRS Autobiography Supercharged
MY2016 Aintree Green Defender 130 Cab Chassis
1957 Series 1 107 ute - In pieces
1974 F250 Highboy - Very rusty project
Assorted Falcons and Jeeps.....
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