BATTERY LIGHT ON BATTERY GETS DRAINED WHILE ...

1998 Ford F-150

Tiny

Anonymous

January, 6, 2013 AT 6:04 PM

Battery light on, battery gets drained while driving, reman alternator did not cure. What's next?

FOUND 1920 RELATED QUESTIONS

Why Is My Battery Light On?

35 ANSWERS
1 IMAGE

Gen Light

28 ANSWERS

1 Answer

Tiny

caradiodoc

January, 6, 2013 AT 9:19 PM

Check for a blown 15 amp fuse under the hood. If it's okay, measure the voltages on the wires and tell me the wire colors and the values you get. We already have one valuable clue when the battery light circuit is working. That's the "turn-on" circuit for the voltage regulator.

The voltage on the white wire has to be measured when the engine is running.

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