Alternator not charging

2001 JAGUAR XJ8
105,000 MILES • V8 • 2WD • AUTOMATIC
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LPETTIS
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  • 2 POSTS
Please identify fuses, fuseable link, relay in alternator charging circuit 2001 XJ8. Car runs battery not charging alternator bench test ok
Jul 24, 2011 at 3:33 AM
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KHLOW2008
  • ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
The diagram shows the charging citrcuit.

Ensure the Black wire has continuity between the alternator and starter. With ignitin switch turned, check for battery voltage at the White/Blue wire.

Is the charge indicator showing when engine is running?
Jul 24, 2011 at 1:46 PM
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LPETTIS
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Thanks yes 12.6v between alternator and starter; blue/white 12.6v trouble light on message 'battery not charging' I should get 13.6+ back in the battery compartment ? right battery is not charging. where is the suppression module located? what does it look like?
Jul 24, 2011 at 10:13 PM
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KHLOW2008
  • ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
The suppression Module is at right front of engine compartnment. See diagram for location and how it looks like.

12.6 v is the battery voltage so the alternator is not charging.

Do you have battery voltage at the White/Blue wire?
Jul 26, 2011 at 12:10 PM
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