When the key is turned on, current flows through the warning lamp, field coils and then to ground causing the lamp to illuminate. Once your engine is running, a higher alternator voltage at the field coils should turn the dashboard lamp off.

When your warning light is “on” basically, it means that there is a significant mismatch between the voltage that the charging system is producing and the battery voltage.

Low output from the alternator or a broken belt could be the reason for this light to come on. Even with a Voltmeter or Amp meter under the dash, it’s a good idea to also have a warning light. Warning lights attract attention immediately. Only with a 3 wire alternator conversion can you make use of a dashboard indicator!

Alternators and Alternator Brackets

1990-1993 Toyota Corolla 1.6 Alternator

US $20.00 (0 Bid)
End Date: Wednesday Aug-27-2008 22:03:28 PDT
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Jetta Alternator

US $100.00 (1 Bid)
End Date: Wednesday Aug-27-2008 22:09:00 PDT
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CHEVY TRUCK BLACK POWDER COATED COAT ALTERNATOR 96-00

US $228.00 (0 Bid)
End Date: Wednesday Aug-27-2008 22:13:51 PDT
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Ford Alternator Bracket for 1980 to 1993 Mustang

US $5.00 (0 Bid)
End Date: Wednesday Aug-27-2008 22:18:28 PDT
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ALTERNATOR REPAIR KIT FORD 6G

US $46.95
End Date: Wednesday Aug-27-2008 22:24:45 PDT
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200 AMP- FORD ALTERNATOR -5.0 MUSTANG (BRAND NEW) 94-95

US $129.95
End Date: Wednesday Aug-27-2008 22:30:26 PDT
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alternator brush repair kit Toyota Truck camry Corolla

US $9.99
End Date: Wednesday Aug-27-2008 22:38:58 PDT
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Bosch used Alternator Porsche 944 No Reserve

US $0.99 (0 Bid)
End Date: Wednesday Sep-03-2008 21:43:20 PDT
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PORSCHE Belt Alternator Serpentine 928 S S4 GT (85-91)

US $24.75
End Date: Wednesday Sep-03-2008 21:41:00 PDT
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88-92 Camaro Crank & Alternator Pulleys Stock

US $1.99 (0 Bid)
End Date: Monday Sep-01-2008 21:30:23 PDT
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87-93 Mustang GT LX 5.0 Radiator Hose Alternator Block

US $5.99 (0 Bid)
End Date: Wednesday Sep-03-2008 21:26:52 PDT
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PORSCHE Belt Alternator set 911 964 993 Carrera (90-98)

US $27.50
End Date: Wednesday Sep-03-2008 21:11:00 PDT
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Duralast Reman 80 Amp DL7748-2 Alternator. 91 Ranger 3L

US $35.00 (0 Bid)
End Date: Wednesday Sep-03-2008 21:05:37 PDT
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Alternator Single Belt Pulley with Fan Chevy GM Ford

US $9.99 (0 Bid)
End Date: Wednesday Sep-03-2008 21:00:45 PDT
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