Chrysler Repair: Voyager airbag light on, crash sensors, airbag module

Question
Hi Roland,
I am in the UK and have a 2000 Chrysler Voyager 2.0L with 150,000 miles.
A few days ago my airbag light started coming on for a few minutes then going off. A few days later I reversed to park and it came on and has stayed on since.
I am aware of the clockspring issue and suspect this to be the problem (all other electics are OK). Local dealer quoted £82 (about $120) per hour and said it would take about 3/4 hour just to diagnose (I can't believe it takes that long to hook up the tester and read the error codes), then parts and labour to fix (unless it is only the clockspring of course, but I suspect they will identify something else to get the money from me).
I have checked fuses and connections to the airbag control module which seem OK and want to check other wiring etc.
My question is, are there any other crash sensors or components that affect the airbag light and where are they located. The service manager said there was a sensor at each wheel but I can only see speed sensors and didn't think they affected the airbag system.

I have just noticed that the seat belt warning light is coming on as normal when switched on and going out whether seat belt is fastened or not. Where exacly is the sensor for this? and could there be anything in common?

Also, the self test using trip and reset buttons shows fault code 905 - no CCD bus messages from TCM - this is a 5-speed manual transmission box so does it still have a TCM?

Many thanks.

Answer
Hi John,
The restraint system is totally self-contained in the airbag module, there are no other crash sensors. About the only part, other than the module, that can fail is the clockspring. It is something you can replace yourself but you need to be careful to avoid setting off the bag due to an electrical spark. You need to disconnect the battery - post cable and isolate it from touching metal. Then wait for 2 minutes before doing anything. Then remove the airbag and disconnect its wires, then the steering wheel, then the shrouds on the steering column. Disconnect plugs on clockspring. Remove clockspring by depressing its two tabs. Then put in new clockspring following reverse procedure. To test the old clockspring see if you get continuity between black/light blue wires and then between the dark blue/light blue wires. If either are open that is why the light is coming on.
The only thing that buckling the seat belt does is, if you buckle before turning on the ignitio, the chime/light will go 'on' for a shorter period of time, not stop the chime/light entirely.
The 905 is likely a phantom due to their being no PCM
Roland