BATTERY LIGHT

1999 Chrysler LHS

Tiny

thomas6656

March, 2, 2010 AT 11:56 AM

1999 Chrysler LHS

The battery light keeps coming on. I have Change the battery as well as the alternator and belt.

FOUND 1792 RELATED QUESTIONS

Why Is My Battery Light On?

35 ANSWERS
1 IMAGE

Gen Light

28 ANSWERS

1 Answer

Tiny

caradiodoc

March, 3, 2010 AT 12:53 AM

Grab a cheap digital voltmeter and measure the voltage across the two batery terminals while the engine is running. It must be between 13.75 and 14.75 volts. If it is around 12.0 to 12.4 volts, the charging system is indeed dead.

If it's dead, you'll need to measure the voltages on the two small wires plugged into the back of the alternator. One must have full battery voltage. The second one will have less, but it must not be 0 volts. Those voltages will only be there steady when the engine is running. Those two readings will determine the direction to follow next. The possibilities on the second wire are 0 volts, exactly the same voltage on both wires, or something in between.

Caradiodoc

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