Thread: Interesting or strange issue?? Siren noise, drivers side rear

Originally Posted by OffTrack

The rest of you get a fail grade in Disco 2 knowledge.

I'd say we get honours in creative problem solving

Originally Posted by Disco Muppet

I'd say we get honours in creative problem solving

"creative" perhaps, "problem solving" not a chance

Thanks to all the creative problem solvers (and non solvers ).

Paul, to test if it is indeed the BBUS, can I simply pull the fuse for a week, and see if I get the noise during that time??

Otherwise, what's the best way to check it, and the remedy for it.

To clarify, it is a monotone siren noise (similar to a footy siren), lasts around 3-5 seconds, and will be heard periodically, at random times, whilst idling, driving, or whilst sitting locked or unlocked.

You beat me to it Kev!

the sls levelling itself out,perhaps a partually blocked valve.it will often relevel when the engine is off

Originally Posted by brenno

Thanks to all the creative problem solvers (and non solvers ).

Paul, to test if it is indeed the BBUS, can I simply pull the fuse for a week, and see if I get the noise during that time??

Otherwise, what's the best way to check it, and the remedy for it.

To clarify, it is a monotone siren noise (similar to a footy siren), lasts around 3-5 seconds, and will be heard periodically, at random times, whilst idling, driving, or whilst sitting locked or unlocked.

TBH, I've never seen anyone mention a problem with the BBUS unit so basically it's a matter of referring to the material LR provide in RAVE to locate cause of the issue.

Not sure if pulling the fuse will work. The BBUS triggers if the power is cut while it's armed.

If you have RAVE check out the description of how the sounder works in the Electrical Library PDF.

The are two BCU settings which enable the BBUS, so if you can borrow a nanocom or hawkeye you should be able to disable.

The wiring appears to run in the same loom as the ultrasonic detectors - up the passenger a-pillar,then across the roof and down to the quarter panel area on the drivers side. There wiring runs via a brown connector in the passenger footwell.

Again you'll probably need to have access to rave because there is information in three different PDFs that will help id the issue.

Given the sounder triggers when power is cut, it is potentially a wiring fault in the power supply. I'd be looking at the relay, connectors, earths etc.

Cheers
Paul