Current draw 1990 S2

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CEW
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If the car sits for a week, it starts kinda slow and I lose my radio presets.

Current draw is around 90mA with all fuses in place. When I remove fuse #8 (central locking) it goes down to around 26mA. Is my central locking module shorted inside? Or what could be causing this?

Thanks.

#1

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Tom
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CEW wrote: Tue May 07, 2024 9:32 am If the car sits for a week, it starts kinda slow and I lose my radio presets.

Current draw is around 90mA with all fuses in place. When I remove fuse #8 (central locking) it goes down to around 26mA. Is my central locking module shorted inside? Or what could be causing this?

Thanks.
Does your central locking work ok? All locks functional? I'm not sure what it is supposed to draw, but 90mA is pretty high overall. Anything else on that fuse?

#2

CEW
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Central locking works ok but not perfect. The drivers door lock actuator does not lock/unlock. The console switch works and operating the drivers door lock with the key will actuate the passenger lock and turn the blinking red lights on both lock knobs on.

The “relay sun roof” is also on that fuse. No problems with the sunroof operation.

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icb
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Have you made any progress with this?
How are you measuring the current draw?
Ian Borg
1988 Porsche 944S
https://icb-machinations.blogspot.com/

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CEW
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No further progress yet…no time to dig into it.

Im using a digital vom and measuring mA in series between the neg battery cable and neg post.

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