Thread: Srs warning light

Originally Posted by sierrafery

Unplug it and if you dont get open circuit that way then you should rule out the DCU but if you get the open circuit the problem is beyond that connector toward the bag

Thanks. SF. I already replaced the clock spring but stupidly didn't think to redo the test with it unplugged. Well. in my defence I did have the battery off....

Originally Posted by Tins

Thanks. SF. I already replaced the clock spring but stupidly didn't think to redo the test with it unplugged. Well. in my defence I did have the battery off....

Remember that in most cases the clock spring faults are "open circuit", i've never seen short circuit code which was caused by the clock spring as the tracks in it get interrupted not shorted, for a short circuit it should be exposed to some physical "intrusion" or water ingress iMO.

Originally Posted by sierrafery

Remember that in most cases the clock spring faults are "open circuit", i've never seen short circuit code which was caused by the clock spring as the tracks in it get interrupted not shorted, for a short circuit it should be exposed to some physical "intrusion" or water ingress iMO.

I did the clock spring before I decided I needed a nanocom again. But thanks for that. Makes sense.

Originally Posted by sierrafery

Unplug it and if you dont get open circuit that way then you should rule out the DCU but if you get the open circuit the problem is beyond that connector toward the bag

OK. Unplugged. Nanocom now says driver's airbag open circuit. I'm a little nervous screwing around with the airbag itself. Heard enough loud bangs in my life.
Is there a safe way of testing this, or is it a new bag required. According to the Nano the bag is the original fitted to the car.

Originally Posted by Tins

OK. Unplugged. Nanocom now says driver's airbag open circuit. I'm a little nervous screwing around with the airbag itself. Heard enough loud bangs in my life.
Is there a safe way of testing this, or is it a new bag required. According to the Nano the bag is the original fitted to the car.

Of course, the clock spring I got could be as bad as the one originally in the car. I guess I'm safe testing the one I have sitting around!

Originally Posted by Tins

Of course, the clock spring I got could be as bad as the one originally in the car. I guess I'm safe testing the one I have sitting around!

Hmm... found an old thread on LandyZone which you, SF, contributed to. Still none the wiser except in that it seems likely that a SH rotary coupler is just as likely to be as bad as the one I already have, and doesn't help as to testing them....

To check the bag you need a resistor to connect instead of it dont mess with multimeter in the bag's plug... probably you need a new one

google out "airbag simulator resistor"

Originally Posted by sierrafery

To check the bag you need a resistor to connect instead of it dont mess with multimeter in the bag's plug... probably you need a new one

google out "airbag simulator resistor"

Thanks. I know about not putting a mm to the bag! BANG!

Resistor goggle coming up