SRS warning lamp does not illuminate

There is not an option to issue a failure for an SRS/Airbag malfunction if the lamp does not illuminate.

At this present time where the srs lamp does not illuminate at start up and go through its self check , the only thing a tester can do is to advise the issue and at this present time it will be the same next year and they after if the criteria does not change .

If the lamp does not light up at start up ,then it’s not going to light up when the system has a fault ,so you could drive around with a system that won’t deploy in the case of a accident ,so , it then does becomes a safety concern ,however the instrument displays will give a message saying that the srs system has a fault ( this is not a failure either ).

From memory on Peugeot both the srs lamp and a message are displayed at the same time,that’s if the messaging system works independently of the srs lamp which I can’t confirm.

The chances are that ,as no faults have been found the bulb has blown/ fault in instrumentation.

Sound advise

Just while we are on about SRS warning lamps I'd just like to share an experience here that I've recently had. After I'd tripped myself up and later been advised of the cause of the SRS warning lamp being illuminated, I then remembered from previous experiences about fitting SRS components. Read on...

We had a Clio in for loss of power steering. I initially tried to remove the steering wheel but failed to remove it. I could not release the airbag from the steering wheel. I decided to remove the whole column as one unit. After sitting the column upside down on the bench and turning the column sat on the steering wheel, I decided to remove the steering column motor and ECU as a assembly without the column itself.

We sent the ECU away for repair but after a few weeks the verdict came back none repairable. The boss got a secondhand steering column with the motor and ECU on it. Now before I removed the old motor and ECU from the original column I marked the splines for alignment. I thought at that time everything would be okay?

I now explained that fitting this motor and ECU to the original column would present a problem because the alignment would be lost. He said nothing as usual so I just got on with it and realigned the replacement motor to the column and steering rack. Up to this point I thought nothing about it, until I'd finished the assembly and connected the battery. Once I turned on the ignition all instrument display warning lamps extinguished except the airbag lamp?

Now I did know and could not remember initially why the car was in or if the warning lamp was illuminated before I started work on the car!

I rang the boss and asked and he said he didn't think the warning lamp was on previously. The fault codes related to the spiral ring on the Bosch scanner but on snap on came back with roof airbags and thorax problems. I'd no idea what to think at the time. After the Bosch scanner had read the codes and a local autoelectrician advised that the spiral cable would have broken away inside the lighting switch assembly, I removed it and looked at the spiral cable and sure enough the ribbon had detached from the plug inside the multifunction switch assembly.

That brought back a memory from years ago when I fitted a new assembly and the instructions made it clear not to turn the spiral assembly because of alignment issues. I'd completely forgotten about this and turning the steering column sat on the steering wheel on the bench must have damaged the spiral ring cable. Valuable lesson learned, but will that lesson be remembered say in another 10 years or so?

I think there is a real good reason why the manufacturer recommendations should be followed when working on vehicles these days, even when we think we don't need them!

Your correct about locking it, but one must know to do that before damage occurs. I'd completely forgotten about it.