Quote:
Originally Posted by RAB
The battery light is on because the battery isn't maintaining a charge that the computer wants it at.
|
This is not precisely true. The light indicates that the battery is discharging rather than charging or doing nothing. If the motor is running and the alternator is producing current, the battery should be receiving a charge, not discharging. It can be fully charged but show a warning light because the alternator is not supplying voltage to the car. The computer isn't even in the warning light circuit, the signal comes straight from the alternator's voltage regulator.
Charging circuit diagram (Factory Wiring Manual)
__________________
'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil)
My Backyard Frame Swap
