1990 air bag light always on

[topless82vette]

how do you find out why its on and are there any reasons that are simple why it would be on.

 

[Ugolino]

This is very common on the 1990. You have two impact sensors on the front frame rails, they have lost their ground with the frame due to corrosion. They need to be removed, sanded, and re-grounded with dielectric grease. There is a procedure for resetting the code but I don't remember where I saw it, perhaps you could do a web search, sorry.

 

[topless82vette]

Thanks I will check them out.

 

[vetteoz]

This is very common on the 1990. You have two impact sensors on the front frame rails, they have lost their ground with the frame due to corrosion.

I agree

Pulling the codes might pinpoint the problem area.
C4 Corvette Diagnostic Code Recovery Techniques

NB;if you have a bad enough fault in the SIR (airbag ) system,the CCM will prevent the engine starting

 

[topless82vette]

well it starts so I guess thats a good sign

 

[So Bay Vetter]

I used to have an air bag problem . . . but I divorced her . . . (sorry, couldn't help myself!)