You may just find that the bulb has blown in the dash, or has a bad contact.
It's a classic problem: The bulb lights when the battery is exciting the alternator field coils. So, once the alternator starts to turn, the magnet moving in the field generates a current that then excites the coils itself and the bulb goes out. No bulb means that the coils are never excited, therefore no current is generated and the alternator "doesn't work". The way to check is to measure the voltage on the blue wire with the alternator disconnected. It should be 12V when you switch the ignition on. If not, then trace back to where it comes out of the loom. If still no joy, remove the dash and check for 12V on both sides of the bulb. If only on the input, suspect the bulb, if neither, then trace back through the wiring to find out why. Hope that helps, Dave. On Jun 28, 7:28 pm, [email protected] wrote: > 'we decided the alternator was at fault' > > could be worth getting this checked professionally - at least you would > know if you could sell the original - if it has not gone in part exchange. > > Michael -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s).
