XK8 / XKR ( X100 ) 1996 - 2006

Battery not charging indication

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Old 02-10-2013 | 11:08 PM
deelli's Avatar
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From: Yorktown Va
Default Battery not charging indication

Need help with understanding the logic for the battery charge indication system on my 1997 XK8. Let me say upfront this is a conversion project, so the original system has been adapted into a GM system. I’ve used the original SW (gray/white stripe), charge indication wire (as suggested in conversion instructions) with a 1000 Ohm resistor connected (have also connected without resistor and left open with no change), to a switched 12v power source (used the pink/white stripe wire), but the red light in the charge meter and a battery not charging indication remain on. I have checked at the battery (with meter), and with the car running the voltage in ~14.4v.
My question is what are those indicators looking for to recognize charge?
Thanks
 
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Old 02-10-2013 | 11:16 PM
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Originally Posted by deelli
Need help with understanding the logic for the battery charge indication system on my 1997 XK8. Let me say upfront this is a conversion project, so the original system has been adapted into a GM system. I’ve used the original SW (gray/white stripe), charge indication wire (as suggested in conversion instructions) with a 1000 Ohm resistor connected (have also connected without resistor and left open with no change), to a switched 12v power source (used the pink/white stripe wire), but the red light in the charge meter and a battery not charging indication remain on. I have checked at the battery (with meter), and with the car running the voltage in ~14.4v.
My question is what are those indicators looking for to recognize charge?
Thanks
Try connecting the grey/white wire going to the instrument cluster to ground. Make sure nothing else is connected to this wire.
 
  #3  
Old 02-11-2013 | 10:58 PM
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From: Yorktown Va
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Originally Posted by WhiteXKR
Try connecting the grey/white wire going to the instrument cluster to ground. Make sure nothing else is connected to this wire.
Thanks for your response...tried grounding the gray/white wire today, no change in the indications.
 
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