S90 L6-2.9L VIN 96 B6304S (1998)
Charge Lamp/Indicator: Description and Operation
The warning light comes on when the generator is not providing sufficient charge. This may be due to a fault In the regulator, the electrical system or a
slack fan belt. If the light comes on with the engine running, the warning lights for bulb failure, brake failure, handbrake on, low coolant level and low
shield wash will also come on.