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AMP light on. 120-130

posted by  RepairmanJackal on  Tue Jan 13 11:02 CST 2009
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last visit: Tue Jun 10 09:52 CST 2014
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Read Ron Kwas' article on the subject over at the SWEM site.

http://www.sw-em.com/AMP_Indicator_ON.htm

Read that carefully. My guess is that you are at condition #2 described by Ron.

If I recall correctly, the gist is that the bulb is normally off because it is getting voltage from both sides of the wire. The bulb lights if the circuit opens up on one side of the setup and grounds. If you lose alternator/generator ground, the bulb lights. If you lose the #1 fuse, the bulb also lights.

My AMP light came on while driving because one of the nuts on the alternator vibrated off. Your problem may simple be an insufficient ground on the regulator. Also be sure you have the correct regulator. You need a charging regulator not a voltage regulator






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New 67 122 wagon amp light on at all times. [120-130]
posted by  lambchopin  on Tue Jan 13 07:37 CST 2009 >


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