Sleep sequence after turning the car off?

Z

Z4Mer

Member
Hoping someone can help
I have a battery drain issue after turning the car off.
I minute after the car is turned off there is a clock from the cd changer and then a buzz from the instrument cluster.
This repeats every minute until it drains the battery.
A scan shows no fault codes.
Pulling fuse 24 stops this.
Help please
 
have you 100% ascertained it is 24 and 24 alone that’s causing the drain?

Have you looked up the circuits fuse 24 controls? From memory it’s obd/instrument cluster and dsc
 
24 also controls instrument panel

So I’d suggest you have an issue with that if it’s buzzing

A buzzing is only usually heard when installing for the first time
 
Thanks for your reply
I have pulled the other two fuses 25 and 12 (from memory ) that show as instrument cluster and they make no difference but I think they are switched off by the ignition.
I should have mentioned the trip meter resets to 0 and the clock and other stored mpg etc are lost as if it's been disconnected every 60 seconds.
 
It's a z4m so getting a replacement to try will be difficult.
Does the inpa software show faults in individual modules .
No codes are showing faults on normal scanners, this maybe because the fault only shows once the car is off.
 
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