Ford Focus air bag light stays on all the time (except when the ignition is off !!)

This might help you ,


http://www.honestjohn.co.uk/forum/post/index.htm?t=75762

Re . seat belts , don't know for sure if that car is fitted with pre tensioners , probably has .

I have read the link to the response posted but it is not relevant as the fault symptoms are different.

I have persued this issue a little further and checked my seat's belt pr-tensioners. I have also checked the witring looms by shorting out the plugs and checking the readings at the module connector and no broken wires are apparent. With the seat plugs shorted I have again checked the system but the light remains on.

Can anyone please answer a simple question :- are these tensioner switches supposed to be open circuit or closed circuit in normal operating environment? This will help me to decide if the fault lies elsewhere.

Thanks,

Paul_B

OK I have now established that my underseat connections and wiring is is in good condition to the pretensioners which are also in good condition (not deployed). I have also now learned from other information that a constantly lit warning light is telling me that the module is faulty OR there is a broken feed or broken earth.

Are there any other common areas where the system wiring can be damaged in this manner?

Thanks,
Vanguard_1

you may have a problem with the rotary connector at the steering wheel. But my advise is if you dont know what you are doing with the airbag system i would leave well alone.... you could do yourself a serious injury or worse!!!!!