Sounds like you have an aftermarket alarm with starter disable. By disconnecting the battery the alarm reset and the defualt setting is usually to set the alarm automatically (active arming). You have three options..
A. If you have the key fob that went with the alarm you can disarm the alarm.
B. If no key fob is available you can disconnect the battery again, turn the ignition key to the on position and reconnect the battery. This usually doesn't allow the alarm to set and allows the car to start.
C. Remove the aftermarket alarm system. This is usually the long term fix i recommend if the fob isn't available. Option B should get you going though.

Anonymous

512 Answers
Posted on Jul 20, 2009

SOURCE: The positive battery terminal has corroded through

Yes, go to subaru dealer and buy org part. It will come with end and new wire attached. You will have to attach to starter. Not the easiest way to fix, but the best way. You can just cut off end and replace with a new one from autoparts store. Get battery cleaner and spray on battery and rinse off to get all corrosion off or you will have same problem again quickly.

Anonymous

580 Answers
Posted on Sep 13, 2009

SOURCE: car drags when trying to start. had battery

Clean positive cable! But take off neg. first to avoid arching. Put positive back on first then reconnect negative. Use a amp. draw meter to see if starter draw is not too high. You may need a new starter.

Ronaldbrains

881 Answers
Posted on Oct 09, 2009

SOURCE: Corroded battery cable?

To do a good job if you havent already done it is to tip hot water over the battery term and it will dry clean ,,if corroded term then replace it but you dont have to buy with a new lead ,,only a positive term only and then hot water over the battery lug when new term on then spray with Hair spray .
If battery cable dident corrod with other battery then your battery is either charging more than 13.5 volts and or battery post to battery is cracked
Wash and spray then check first

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My battery on a 2012 Chrysler 300 had some kind of grayish blue build up on the red positive connection. Any idea why?

2012 Chrysler 300S S V6 RWD

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My battery light was flashing when hitting bumbs, I replaced corroded positive terminal and now my battery light is stayining on. Any ideas?

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