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Old 02-07-2022, 05:25 PM
puddinboo puddinboo is offline
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I unlocked my cluster and read voltage directly from it here is my results.

Vehicle in park I get 13.3-13.7 v (850 RPMS)
Vehicle in drive 12.2v - 12.5 v (630 RPMS)
When I'm stopped fully at a light I get the low readings,when I take off I get the normal readings like when in park.
I reset my Code 5A reading and took the X for a drive and no code or the 3 orange lights as of now.
I am concerned my Alternator isn't put out enough voltage while in drive? Or is this normal?
Quote:
Originally Posted by andrewwynn View Post
Idle not the problem. The voltage dip is usually worst when coming off throttle to coast to a stop. Any time I've had a weak alternator that's when I had the voltage dip.
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2003 bmw x5 3.0i ,219000km build date 2003-08-18
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