Alternator light staying on....

[Dr Terry]

Does the ALT light come on when the ignition is switched on, before you start the engine ? Also does the fuel gauge etc. work properly ?

Both of these will indicated whether (or not) the ignition supply fuse the instruments is OK. If this fuse is blown & there is no 12V supply to the ALT light, it will behave as you have described.

If the instrument fuse is OK, then you will have a faulty regulator.

Dr Terry

[Big Rob]

Does the ALT light come on when the ignition is switched on, before you start the engine ? Also does the fuel gauge etc. work properly ?

Both of these will indicated whether (or not) the ignition supply fuse the instruments is OK. If this fuse is blown & there is no 12V supply to the ALT light, it will behave as you have described.

If the instrument fuse is OK, then you will have a faulty regulator.

Dr Terry

Fuel gauge is ok and alternator light behaves just as it should but remains on and dim with the motor running. The regulator is on the alternator so I guess I need to get it checked out.
Thanks for your help.