Why is my Saab 9-3 battery draining while driving?
If your battery is draining while driving, it is almost without exception the 9-3’s alternator that is causing the problem. If it is you should see the battery or alternator light on, it indicates that the alternator is not creating the necessary voltage to charge the battery. It could be a bad battery, or more likely a bad battery cable too.
How can I find out if my car battery is draining?
Start by connecting a digital multimeter to the negative battery terminal of your vehicle. Then, remove the fuses one at a time while watching for changes in the multimeter’s reading. Once the reading drops, you’ve found the culprit and can take steps to repair it.
Why does my OnStar battery drain so much?
Community Answer In older vehicles running analog Onstar, the system will drain the battery because it is constantly looking for a signal. Onstar no longer offers an analog signal, only digital.
How to get rid of negative battery drain?
Remove the negative battery cable from the negative battery terminal. Find the negative cable, which will be marked with a minus sign (-) and may have a black cover over it. Remove the cover, if applicable, and use a wrench to unbolt the negative cable from the terminal.
Start by connecting a digital multimeter to the negative battery terminal of your vehicle. Then, remove the fuses one at a time while watching for changes in the multimeter’s reading. Once the reading drops, you’ve found the culprit and can take steps to repair it.
Why does my car battery drain within one minute?
I discovered that the nut which clamped the wiring harness to the alternator was loose which caused intermittent connection from the alternator to the car’s electrical system including the battery. Tightening the nut down fixed the problem. Was this answer helpful?
Community Answer In older vehicles running analog Onstar, the system will drain the battery because it is constantly looking for a signal. Onstar no longer offers an analog signal, only digital.
Remove the negative battery cable from the negative battery terminal. Find the negative cable, which will be marked with a minus sign (-) and may have a black cover over it. Remove the cover, if applicable, and use a wrench to unbolt the negative cable from the terminal.
If your battery is draining while driving, it is almost without exception the 9-3’s alternator that is causing the problem. If it is you should see the battery or alternator light on, it indicates that the alternator is not creating the necessary voltage to charge the battery. It could be a bad battery, or more likely a bad battery cable too.
What should the draw be on a Saab battery?
0.68A is however way too much drain- even a fully charged healthy battery would only last 4 days at that rate. The total draw for the entire car should be around 50mA or less. The current has been measured after 5 minutes but I wonder if anything else is happening after an interval that maybe increases the draw.
Is the rear window heater normal in a Saab?
Not sure about the rest of the operation of the AC but havingt the fans come on at full and the rear window heater is normal when you select screen only (it’s actually a defrost function).
What kind of battery drain does a 2004 9-3 have?
Email this Page… I have a 2004 9-3 Sedan that has a parasitic battery drain. Unfortunately this is something familiar to me as approx 18 months ago I had a parasitic battery drain (330mA) that I eventually discovered to be the underseat amp.
What to do if your 9-5 battery is draining?
On the 9-5 it took up to 30mins before everything shutdown so you need some patience and luck to pinpoint the problem. Measuring voltage drop across the fuses is probably the easiest for trouble shooting and is a quick way of identifying circuits downstream that are active and drawing power.
Is the fuse box powered 24 / 7 on a Saab?
The entire fuse box is powered 24/7, though the accessories that draw from the fuse circuits don’t appear to be “active”. Does SAAB do something odd with their electrical engineering? e.g. does the fuseblock stay hot (12Volts all the time even after time-out and days of sitting) and the controls all run through an interrupted ground somewhere else?
What makes a Saab 9-3 battery drain while parked?
Saab 9-3: Battery Draining While Parked 1 Battery Cables. You’ll want to take a look at your 9-3’s battery posts where they bolt to the battery. 2 Bad Battery. When the battery drains when parked, the odds are that it’s the battery itself. 3 Alternator. 4 9-3 Battery Draining While Parked.
Email this Page… I have a 2004 9-3 Sedan that has a parasitic battery drain. Unfortunately this is something familiar to me as approx 18 months ago I had a parasitic battery drain (330mA) that I eventually discovered to be the underseat amp.
On the 9-5 it took up to 30mins before everything shutdown so you need some patience and luck to pinpoint the problem. Measuring voltage drop across the fuses is probably the easiest for trouble shooting and is a quick way of identifying circuits downstream that are active and drawing power.