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#1 (permalink) Old 02-08-2010, 08:30 PM
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Code after nrecharging battery

Get a code after recharging bettries on 1989 ,735i.How do i get rid of this to start this car? Any Help.
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#2 (permalink) Old 02-09-2010, 02:13 AM
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What code???

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#3 (permalink) Old 02-10-2010, 07:40 AM
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The horn kept going and it said code and showed pppp.
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#4 (permalink) Old 02-10-2010, 10:29 AM
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Disconnect the battery for 20 minutes, I presume its now totally recharged....did you charge it off the car or with the terminals still connected??

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#5 (permalink) Old 02-10-2010, 02:17 PM
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I charged it with the battery disconected , should I have charged it with the battery connected? Think I will get one of those trickle chargers. Thanks.
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#6 (permalink) Old 02-10-2010, 08:43 PM
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From my understaning, its always better to charge batteries when they are disconnected from the car. The problem sounds like something to do with the alarm, but that just a guess.
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#7 (permalink) Old 02-11-2010, 02:55 AM
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Always disconnected...

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#8 (permalink) Old 02-11-2010, 03:55 AM
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Read this:

What to do if you get PPPP displayed on the OBC
I've heard that disconnecting the battery for a long time (like 1 hour) will make this go away.
I lived with this problem for several (3) years. I tried disconnecting the battery for the 1+ hours or so to no avail. The ultimate solution was to disconnect the computer itself from its multi-pin connector. I left it unhooked for approximately 24 hours. Upon reconnecting the computer.....viola a full up and running OBC II.

Jeff Wilcox
So here is what works most of the time.

With the key in the "Radio" position (Radio and OBC light up, but not the instrument cluster), press the "CODE" button. Then push the little reset-hole with a Pen and hold it, 'till the computer blinks in the display, and it will ask you for a time and date entry. - You now have re-adapted the coding plug to the computer. - Normally the computer goes into a PPPP mode when the car has been boosted, or some other very drastically voltage changes have occurred

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#9 (permalink) Old 02-11-2010, 07:39 PM
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thank you !!!! I will try this.
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