250 Check airbag light

I have this on my 250 and haven’t yet got to the bottom of it.
I did get it on the scanner which came up as drivers side door crash sensor fault which the garage said is probably a lose wire in the door.
If you’ve been messing with the speakers then you’ve maybe knocked a wire lose?

 

I’ve had my door card off today and it’s a pig to get to. It’s right under the door lock pushed up right against the door body and in typical Renault fashion they’ve put the bolt securing it to its mounting bracket on the opposite side of the sensor

I couldn’t quite work out how to get it off as the bolt looks impossible to get to so I put it all back together until I get a new sensor.

Also while removing the door card most of the sh*ty clips broke so need to get a few new replacements.

It’s no wonder mechanics hate these cars. The French really are backwards.

 

It’s basically about there as per the arrow in the pic

 

My air bag light keeps going on and off whilst driving and I have a rattle coming from behind that door card,

Luckily it’s under warranty so will be going in Monday for Renault to mis diagnose a few times, I’ll update on the out come

 

Yes mines the same. I assume it’s all linked.
You really need to get it on a decent scanner to give you an idea of which area needs looking at

 

You need to get it on a decent scanner. Those cheap ones don’t always find SRS codes.
Mines been on/off today since i played about with the sensor and wiring in they door yesterday.

 

Icarsoft i907 reads the airbag codes, the cheaper scanners don’t.

 

might have something for you....there's is a micro switch thats attached under drivers seat (left front corner) its job is to slide to end of rail when flipping seat forward and deactivate air bag so ECU doesn't think vehicles in accident. if that's failing it'll cut the bag circuit and give warning if start to drive

 

yep

 

attached to seat runner

 

dont think so, look for two black wires, that switch also has a resistor in it and ECU need to see that. think weve just sorted your problem

 

when buy new switch (as that one has disintegrated) might have clip so can see how clamps onto seat and when full forward butts up to something on rail and activates the micro switch

 

think about now maybe switch is fixed to rail and seat runner touches upto it when forward

 

disconnect battery for ten mins and reconnect

 

That micro switch won’t bring up the airbag light.

I went to a local car sales garage who had a scanner and they changed me £20 to use it, I then took photos of the code.

 

No it isn’t, it’s there to tell the car if the driver has the seat positioned too close to the Steering wheel so not to deploy the airbag in an accident. It also wouldn’t ping up the dash light if it broke loose.

 

Yes correct that is it’s function and no not if it’s loose (mine lives loose on car floor), it will ping the dash light though if it’s broken as it has a resistor that needed to be in same circuit as air bag

 

Yes if it’s loose it won’t ping up the light but if if the wires are broken then yes it probably will

 

Just an update. I replaced the crash sensor in the door and problem solved.

 

Have you had it on a scanner yet? That will give you a general idea of where the problem is otherwise you could be chasing you tail with it.

The door crash sensor is located inside the door beneath the lock. The screws near the lock secure it.