07-09-2015, 02:34 PM
(This post was last modified: 07-09-2015, 02:35 PM by LordMorbius.)
Hi there, realise it's a couple of years since this thread died but hopefully you guys have still got your ears on!
First of all I intend to fit this to a beemer which has defied all attempts to resolve the srs light issue by conventional means. I do own a 306, have done for years but that's another story.
I'm not sure why you need to poke around in the srs wiring harness, couldn't this circuit simply be hooked up to 12v feed in the dash and the led used to replace the existing srs lamp? Seems a lot simpler (and safer) or am i missing something?
Also, when building the circuit i didn't bother with the buttons, relay or output terminals as i won't need to power an external circuit, just switch on the led for 5-6 secs when the circuit is energised by the 12v feed.
Speaking of which, your mod to bypass the trigger switch worked a treat - ta for that.... however... rather than switching the led on for 6 secs, it remains off then switches on after 6 secs!!! How might i correct this?
Additionally, when the circuit is broke then re-energised soon afterwards the delay is less than it should be... in fact if you were to switch the ignition off then on again quickly the light might not come on at all! I suspect that this is due to residual charge remaining in the capacitor/s. Therefore the question would be if these could be arranged to discharge on power off to ensure the proper delay every time the ignition key is turned on.
Sorry to be a pain in the ass but any pointers would be greatly appreciated.
Regards - Mervyn.
First of all I intend to fit this to a beemer which has defied all attempts to resolve the srs light issue by conventional means. I do own a 306, have done for years but that's another story.
I'm not sure why you need to poke around in the srs wiring harness, couldn't this circuit simply be hooked up to 12v feed in the dash and the led used to replace the existing srs lamp? Seems a lot simpler (and safer) or am i missing something?
Also, when building the circuit i didn't bother with the buttons, relay or output terminals as i won't need to power an external circuit, just switch on the led for 5-6 secs when the circuit is energised by the 12v feed.
Speaking of which, your mod to bypass the trigger switch worked a treat - ta for that.... however... rather than switching the led on for 6 secs, it remains off then switches on after 6 secs!!! How might i correct this?
Additionally, when the circuit is broke then re-energised soon afterwards the delay is less than it should be... in fact if you were to switch the ignition off then on again quickly the light might not come on at all! I suspect that this is due to residual charge remaining in the capacitor/s. Therefore the question would be if these could be arranged to discharge on power off to ensure the proper delay every time the ignition key is turned on.
Sorry to be a pain in the ass but any pointers would be greatly appreciated.
Regards - Mervyn.