Electical problem-intermittent VERY little 12v power - Saab 9-5 Bulletin Board - Saabnet.com
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Electical problem-intermittent VERY little 12v power
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Posted by Rick [Email] (more from Rick) on Tue, 24 Dec 2013 05:53:23 Share Post by Email
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Hello All,
I've searched the BB unsuccessfully, and would appreciate some help and suggestions. 2002 9-5 Aero (manual), 160m +/- miles.
Twice-last night, and a month ago, car died for no apparent reason when I came to a stop. When turning the key again, virtually no electrical power-only the overhead courtesy light showed an extremely dim (barely visible at night) glow. Even the hazard lights would not function.

First time...waited a couple of minutes, and power came back. Car started fine. Headlights worked, etc.
2nd time (last night)tried to activate hazard lights (died in an active right turn lane)- nothing; jumped out to raise hood, did so, wiggled the positive and negative battery cables, and could see the courtesy lights come back on (not sure/can't tell if related, or just a coincidence). Started car. After first starting, the lower center dash display (heat, A/C, etc.) went through a diagnostic sequence showing various numbers on the left and right side as it cycled through its' sequence, i.e., "2" on left, "18" on right, etc.
As it was running again, made several more stops loading up on supplies for the holidays, fuel, etc. - at least four or five stops, shutting off engine for several minutes each time.

Also, the upper display reset itself (mile per gallon, average speed, etc.)

This morning, hoping for a quick fix, visually inspected battery cables and connections-all seem fine (so much for a 'quick fix').

I have had (and still have) several notices upon start up park assist failure; washer fluid low; service theft alarm"

Can anyone suggest what this might be, and where to begin looking/diagnosing, etc.

Thanks in advance for any and all comments.

posted by 184.32.21...

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