Question about 1999 Volkswagen New Jetta
My 2000 Jetta diesel likes to eat batteries. Everything appears to be working OK and it runs fine. With everything turned off I show about 1 amp drain on the battery. Something has to run the factory alarm and whatever is waiting for the keyless locks to be activiated, but does anyone know what is the nominal drain on one of these? One amp does not sound that bad to me, But a comparison to a known good would be helpful.
Hi if you are getting a 1 amp drain with everything switched off thats too much the maximum drain should be no more than 50 miliamps try pulling fuses one at a time to check which circuit is affected if no joy disconnect alternator cables or plug (not with engine running!) tell me if this helps
Posted on Mar 27, 2009
Although you are looking at the alarm for the fault? could it possibly be the alternator?
Have or do you charge the batteries on the vehicle without disconnecting the Negative- lead.
Sometime the alternator in built regulator becomes damaged it allows full charging capabilities but when engine turned off lets the power through the alternator slowly discharging it.
To test this try taking the charge wire/s off but make sure the battery is disconnected, isolate/insulate the cable if exposed re connect the battery and see if the drain is still occurring?
Posted on Jan 05, 2009
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Posted on Jan 02, 2017
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