syoo8

Hi 928 electrics experts (Alan, Jim, et al.)

My door chime plays at one pitch doors closed, another (lower pitch) doors open.

Does this indicate a problem in the electrical system?

James Bailey

No just a sense of humor...

Alan

Are you coming or going...?

There are different chimes for doors open key-in and doors open parking/marker lights on and seat belt warning...

Alan

syoo8

Come again? :-)

I did not know this. My seat belt warning (on either car) does not work.

What I observe:

Doors open key in:, car off E-natural
Turn key: E-natural. Turn car on.
Car on, then open door: D-natural

Alan

BTW depending on year it was a simple buzzer tone vs an actual cycling chime sound...

Alan

syoo8

We are talking about my '86.5 and '87. It isn't the buzzer sound- it is the nice-sounding chime. Are you saying that the change in the chime sound is a design element?

Alan

Well consider why its chiming - what is it for? you say your door chime and then tell us in one case the door is closed - so it isn't the door chime - right?

It doesn't really chime for the doors anyway - the door open triggers the chime only if other conditions are met. It also chimes for airbag faults (if equipped), and for a delay period for a seatbelt warning after the ignition is active (if driver belt not fastened).

You will need to describe better... what do you get for different modes

If the doors aren't open I assume it is the seat belt chime you are hearing

The buzzer 'chime' was only early cars.

Sometime old chime units do make strange sounds sometimes only in some modes, reports of a squealing cat noise are not uncommon....

Alan

DKWalser

Is it possible that the different "chimes" you are hearing is really just the difference in acoustics with the door open and shut?

syoo8

Definitely not- it is a difference in pitch.

Avar928

How do you get it to turn off with the door open and the engine on? Or you can't?

Alan

Engine on door open should not even trigger a chime - unless for the seatbelts - limited time period and the door state may not matter (but if it does it would be required to be closed).

Debugging systems doesn't work very well unless you know the expected behaviour.

Alan

Gary Knox

Gotta' be the Doppler effect of coming versus going!!!

Gary-

Yeah - it's a cold snowy day, gotta' find some fun!!!!

Avar928

I guess I do have a bug in the system then because my door chime will continue with the door open regardless of whether the car is on or off. Might be because I disabled the hatch lock and alarm or I have a short somewhere or something.

SteveG

Thinking about removing this relay (928 618 102.03) on my '93, so as to quiet the chime? Does it disable anything? This is a typical a prime example of German over-engineering. IIRC (if I researched correctly) it is $230 new: and mostly just annoys owners.

OTR18WHEELER

Yes, my door chime would change with gear selections , it took me two weeks to find a short in the rear hatch light that caused a bunch of problems.